Journal articles: 'Fatigue en fretting'

1

Waterhouse, R. B. "Fretting fatigue." International Materials Reviews 37, no. 1 (January 1992): 77–98. http://dx.doi.org/10.1179/imr.1992.37.1.77.

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Stack, M. M. "Fretting Fatigue." Tribology International 29, no. 1 (February 1996): 88–89. http://dx.doi.org/10.1016/0301-679x(96)90011-0.

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Waterhouse, R. B. "Environmental Effects in Fretting, Fatigue and Fretting-Fatigue." Key Engineering Materials 35-36 (January 1991): 63–79. http://dx.doi.org/10.4028/www.scientific.net/kem.35-36.63.

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Berthier, Y., L. Vincent, and M. Godet. "Fretting fatigue and fretting wear." Tribology International 22, no. 4 (August 1989): 235–42. http://dx.doi.org/10.1016/0301-679x(89)90081-9.

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Dubourg, M.-C., Y. Berthier, and L. Vincent. "Cracking under fretting fatigue: Damage prediction under multiaxial fatigue." Journal of Strain Analysis for Engineering Design 37, no. 6 (August 1, 2002): 519–33. http://dx.doi.org/10.1243/030932402320950134.

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Fretting is one of the plagues of modern industry. It occurs whenever a junction between components is subjected to cyclic sliding, with small relative displacements at the interface of the contacting surfaces. Further cyclic bulk stresses may be superimposed on to one or both components. The investigation of fretting wear and fretting fatigue started in the early 1970s. It is responsible for premature fatigue failures and often limits the life of a component. Crack initiation and growth under fretting contact conditions have been investigated. The fretting map concepts allow the first degradation responses of the material—no degradation, cracking and wear—to be related to a fretting regime with its corresponding local contact conditions during fretting tests. The fretting fatigue prediction models have been developed and compared to experiments conducted either on metallic or photoelastic materials. A special emphasis has been directed towards crack nucleation and early growth during stage I, the stage I-stage II transition and stage II crack growth (crack initiation sites, orientation, growth path, formation of a branch, growth mechanism). The analysis of the different stages that comprise the crack lifetime has been carried out in order to understand the effects of diverse parameters that are thought to influence the fretting damage.

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KITAHARA, Hiroki, Masanobu KUBOTA, Chu SAKAE, and Yoshiyuki KONDO. "Fretting Fatigue under Variable Loading below Fretting Fatigue Limit." Proceedings of the Materials and processing conference 2003.11 (2003): 115–16. http://dx.doi.org/10.1299/jsmemp.2003.11.115.

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KONDO, Y., C. SAKAE, M. KUBOTA, H. KITAHARA, and K. YANAGIHARA. "Fretting fatigue under variable loading below fretting fatigue limit." Fatigue Fracture of Engineering Materials and Structures 29, no. 3 (March 2006): 191–99. http://dx.doi.org/10.1111/j.1460-2695.2006.00980.x.

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Shimamura, Yoshinobu, Reo Kasahara, Hitoshi Ishii, Keiichiro Tohgo, Tomoyuki Fujii, Toru Yagasaki, and Soichiro Sumida. "Fretting Fatigue Behaviour of Alloy Steel in the Very High Cycle Region." MATEC Web of Conferences 300 (2019): 18002. http://dx.doi.org/10.1051/matecconf/201930018002.

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It is well known that fretting fatigue strength is much lower than the fatigue strength of smooth specimens and the fatigue limit disappears. Many studies on fretting fatigue have been reported but most of the studies have not cover fatigue properties in the very high cycle regime more than 107 cycles. In this study, an accelerated fretting fatigue testing method was developed by using an ultrasonic torsional fatigue testing machine with a clamping fretting pad. Fretting fatigue tests of CrMo steel were conducted by using the developed method. Test results showed that fretting fatigue failure occurs in the very high cycle region.

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Zhou, Z. R., and L. Vincent. "Cracking Induced by Fretting of Aluminium Alloys." Journal of Tribology 119, no. 1 (January 1, 1997): 36–42. http://dx.doi.org/10.1115/1.2832477.

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Fretting-wear and fretting-fatigue loadings can both result in wear (material loss) and in crack nucleation and propagation (fatigue process). This paper deals with cracking induced by small amplitude displacements in the case of aeronautic aluminium alloys. The two sets of fretting maps are introduced: running condition fretting map is composed of partial slip (sticking), mixed fretting and gross sliding regime; material response fretting map is associated with two macro-degradation modes. Crack nucleation and propagation are analysed for every fretting regime. The mixed fretting regime appeared most detrimental with regards to fatigue cracking. Slip amplitude and normal load main effects discussed for fretting wear can be used to justify the fatigue limit decrease often obtained for fretting fatigue experiments.

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Liu, Dan, Xiao Song Jiang, Pei Qiu Sun, and Yue Shen. "Influence of Frequency on Fretting Fatigue Damage Behavior of Al-Zn-Mg Alloy." Advanced Materials Research 813 (September 2013): 407–12. http://dx.doi.org/10.4028/www.scientific.net/amr.813.407.

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nfluence of frequency on fretting fatigue damage behavior of Al-Zn-Mg alloy was studied in this paper. Fretting fatigue lives and damage characteristics of Al-Zn-Mg alloy were researched under different frequencies. Macroscopic tests and microscopic analysis were used to study on influence of frequency on fretting fatigue damage behavior of Al-Zn-Mg alloy. Fatigue lives would be greatly reduced by fretting under the experimental conditions in this paper. With frequency increasing, fretting fatigue lives were firstly decreased and then increased (f=9Hz). Fretting scar, which was the important reason for fretting fatigue crack initiation, was caused by embedding debris; eventually, crack initiated at the edge of the fretting scar. Fretting fatigue fracture is a whole process of crack initiation, propagation and final fracture. And final fracture increased with frequency reducing, which was generally occurred near the center of the fracture.

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KONDO, Yoshiyuki, Chu SAKAE, Masanobu KUBOTA, Hiroki KITAHARA, and Kazutoshi YANAGIHARA. "Fretting Fatigue under Variable Amplitude Loading below Fretting Fatigue Limit." Transactions of the Japan Society of Mechanical Engineers Series A 71, no. 705 (2005): 763–68. http://dx.doi.org/10.1299/kikaia.71.763.

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KONDO, Yoshiyuki, Chu SAKAE, Masanobu KUBOTA, Hiroki KITAHARA, and Kazutoshi Yanagihara. "Fretting Fatigue under Variable Amplitude Loading below Fretting Fatigue Limit." Proceedings of the Materials and processing conference 2004.12 (2004): 241–42. http://dx.doi.org/10.1299/jsmemp.2004.12.241.

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13

Yang, Moo Sheng, Yue Liang Chen, Yu Quan Bi, and Wen Hao Jiang. "Prediction of Fretting Fatigue Life of Aluminum Alloy LY12CZ." Advanced Materials Research 146-147 (October 2010): 252–56. http://dx.doi.org/10.4028/www.scientific.net/amr.146-147.252.

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Stress in the interface of contacts was calculated applying finite element software/ABAQUS, with which the Ruiz fretting damage parameter was obtained and the location for crack formation was found. A new model for predicting fretting fatigue life has been presented based on friction work. The rationality and effectiveness of the model were validated according to the contrast of experiment life and predicting life. At last influence factor on fretting fatigue life of aerial aluminum alloy LY12CZ was investigated with the model. The results revealed that fretting fatigue life decreased monotonously with the increasing of normal load and then became constant at higher pressures. At low normal load, fretting fatigue life was found to increase with increase in the pad radius. At high normal load, however, the fretting fatigue life remained almost unchanged with changes in the fretting pad radius. The bulk stress amplitude had the dominant effect on fretting fatigue life. The fretting fatigue life diminished as the bulk stress amplitude increased.

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ZHANG, XIAO-HUA, and DAO-XIN LIU. "INVESTIGATION OF FRETTING FATIGUE BEHAVIOR OF TI811 ALLOY AT ELEVATED TEMPERATURE." International Journal of Modern Physics B 22, no. 31n32 (December 30, 2008): 5489–94. http://dx.doi.org/10.1142/s021797920805070x.

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The fretting fatigue behavior of the Ti 811titanium alloy, as influenced by temperature, slip amplitude, and contact pressure, was investigated using a high-frequency fatigue machine and a home-made high-temperature apparatus. The fretting fatigue failure mechanisms were studied by observing the fretting surface morphology features. The results show that the sensitivity to fretting fatigue is high at both 350°C and 500°C. The higher the temperature is, the more sensitive the alloy is to fretting fatigue failure. Creep is an important factor that influences the fretting fatigue failure process at elevated temperature. The fretting fatigue life of the Ti 811 alloy does not change in a monotonic way as the slip amplitude and contact pressure increase. This is due to the fact that the slip amplitude affects the action of fatigue and wear in the fretting process, and the nominal contact pressure affects the distribution and concentration of the stress and the amplitude of fretting slip at the contact surface, and thus further influences the crack initiation probability and the driving force for propagation.

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Maruyama, Norio. "Fatigue and Fretting Fatigue Behavior of Metallic Biomaterials." Materials Science Forum 638-642 (January 2010): 618–23. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.618.

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A fretting fatigue test method in a simulated body fluid is shown to evaluate fatigue properties of metallic materials which are used in the orthopaedics field. Next, fatigue/fretting fatigue behavior in a simulated body fluid is given for 316L stainless steel, Ti-6% Al-4% V alloy, pure Ti for industrial use and Co-Cr-Mo alloy. Finally, we discuss the relationship between the tensile strength and the fatigue strength/fretting fatigue strength of metallic biomaterials at 107 cycles in air and in a simulated body fluid. For all of the biomaterials tested, the fatigue strength at 107 cycles is similar in air and in a simulated body fluid. The fatigue strength is closely correlated to the tensile strength: The fatigue strength increases with increasing tensile strength. However, a correlation is not observed between the fretting fatigue strength at 107 cycles and the fatigue strength or the tensile strength.

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16

Komoda, Ryosuke, Naoto Yoshigai, Masanobu Kubota, and Jader Furtado. "Reduction in Fretting Fatigue Strength of Austenitic Stainless Steels due to Internal Hydrogen." Advanced Materials Research 891-892 (March 2014): 891–96. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.891.

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Fretting fatigue is one of the major factors in the design of hydrogen equipment. The effect of internal hydrogen on the fretting fatigue strength of austenitic stainless steels was studied. The internal hydrogen reduced the fretting fatigue strength. The reduction in the fretting fatigue strength became more significant with an increase in the hydrogen content. The reason for this reduction is that the internal hydrogen assisted the crack initiation. When the fretting fatigue test of the hydrogen-charged material was carried out in hydrogen gas, the fretting fatigue strength was the lowest. Internal hydrogen and gaseous hydrogen synergistically induced the reduction in the fretting fatigue strength of the austenitic stainless steels. In the gaseous hydrogen, fretting creates adhesion between contacting surfaces where severe plastic deformation occurs. The internal hydrogen is activated at the adhered part by the plastic deformation which results in further reduction of the crack initiation limit.

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17

Peng, J. F., X. Jin, Z. B. Xu, Z. B. Cai, X. Y. Zhang, and M. H. Zhu. "Study on bending fretting fatigue damage in 17CrNiMo6 steel." International Journal of Modern Physics B 31, no. 16-19 (July 26, 2017): 1744020. http://dx.doi.org/10.1142/s0217979217440209.

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Bending fretting fatigue behavior of 17CrNiMo6 alloy structural steel at room temperature was investigated under different bending and contact loads; and the [Formula: see text]–[Formula: see text] curve also was built up. The results showed that the [Formula: see text]–[Formula: see text] curve had a “C” shape. The bending fretting fatigue life was mainly dependent on the bending fatigue stress and fretting displacement. The limit of the specimens and the fretting fatigue life were dramatically decreased by fretting actions. The bending fretting fatigue damage changed under varied bending fatigue stress levels. When the wear first occurred, there is a lower bending fatigue stress; and with a higher bending fatigue load, microcracks were generated. However, some serious wear and surface delamination were observed under the highest fatigue load.

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18

Ronchei, Camilla, Andrea Carpinteri, Giovanni Fortese, Daniela Scorza, and Sabrina Vantadori. "Fretting High-Cycle Fatigue Assessment through a Multiaxial Critical Plane-Based Criterion in Conjunction with the Taylor’s Point Method." Solid State Phenomena 258 (December 2016): 217–20. http://dx.doi.org/10.4028/www.scientific.net/ssp.258.217.

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The critical plane-based multiaxial criterion originally proposed by the authors for plain fatigue is here applied to estimate the crack initiation life of fretting high-cycle fatigued structural components. Although fretting fatigue can be regarded as a case of multiaxial fatigue, the common multiaxial fatigue criteria have to be modified to account for the severe stress gradients in the contact zone. Therefore, the above criterion is used in conjunction with the Taylor’s point method to numerically estimate the fatigue life of Ti-6Al-4V and Al-4Cu specimens under cylindrical contacts.

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19

Xu, Zhibiao, Jinfang Peng, Jianhua Liu, Xiyang Liu, Wulin Zhang, and Minhao Zhu. "Study on tribo-chemical and fatigue behavior of 316L austenitic stainless steel in torsional fretting fatigue." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 234, no. 1 (July 16, 2019): 84–93. http://dx.doi.org/10.1177/1350650119864482.

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Fretting fatigue is a complex tribological phenomenon that can cause premature failure of connected components. Combining with the effects of tribological and fatigue, the components have premature fracture, which ultimately leads to disastrous consequences. In this work, the fretting fatigue tests of 316L austenitic stainless steel have been carried out with same normal load and varied torsional torques. The results indicate that the fretting fatigue life significantly depends on the torque amplitude, wear degree of the fretting damage zone, hysteresis loops and energy dissipation. A physical model for fretting crack initiation and propagation is created to explain the failure process of torsional fretting fatigue. The results from X-ray photoelectron spectroscopy analysis show that the extent of oxidation in the fretting damage zone is affected by the amplitude of relative displacement. The tribo-chemical reaction in the slip regime is more activated than that in partial slip regime. It can lead to more severe wear in the slip regime. The wear debris of the fretting damage zone is composed of metallic Fe, Fe2+ and Fe3+.

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20

Zou, Lang, Dongfang Zeng, Yabo Li, Kai Yang, Liantao Lu, and Caiqin Yuan. "Experimental and numerical study on fretting wear and fatigue of full-scale railway axles." Railway Engineering Science 28, no. 4 (November 12, 2020): 365–81. http://dx.doi.org/10.1007/s40534-020-00224-9.

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AbstractThis study investigated the fretting wear and fatigue of full-scale railway axles. Fatigue tests were conducted on full-scale railway axles, and the fretting wear and fretting fatigue in the fretted zone of the railway axles were analysed. Three-dimensional finite element models were established based on the experimental results. Then, multi-axial fatigue parameters and a linear elastic fracture mechanics-based approach were used to investigate the fretting fatigue crack initiation and propagation, respectively, in which the role of the fretting wear was taken into account. The experimental and simulated results showed that the fretted zone could be divided into zones I–III according to the surface damage morphologies. Fretting wear alleviated the stress concentration near the wheel seat edge and resulted in a new stress concentration near the worn/unworn boundary in zone II, which greatly promoted the fretting crack initiation at the inner side of the fretted zone. Meanwhile, the stress concentration also increased the equivalent stress intensity factor range ΔKeq below the mating surface, and thus promoted the propagation of fretting fatigue crack. Based on these findings, the effect of the stress redistribution resulting from fretting wear is suggested to be taken into account when evaluating the fretting fatigue in railway axles.

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Maslan, M. H., M. A. Sheikh, and S. Arun. "Prediction of Fatigue Crack Initiation in Complete Contact Fretting Fatigue." Applied Mechanics and Materials 467 (December 2013): 431–37. http://dx.doi.org/10.4028/www.scientific.net/amm.467.431.

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Fretting induced cracking is commonly observed in industrial components that are in contact and are subjected to small oscillatory movements between them. Fretting causes a considerable reduction in fatigue strength. In this paper, finite element modeling is used in conjunction with Smith Watson Topper (SWT) criterion to estimate crack initiation in fretting. The predictions from the analysis are compared with the experimental results. It is concluded that the analysis must include the effect of residual stress and wear profile with debris effect for better predictions.

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Shimamura, Yoshinobu, Akito Kokubo, Hitoshi Ishii, Keiichiro Tohgo, Tomoyuki Fujii, Tooru Yagasaki, and Masamichi Harada. "Fretting Fatigue Testing of Carburized Alloy Steel in Very High Cycle Regime Using an Ultrasonic Torsional Fatigue Testing Machine." Advanced Materials Research 891-892 (March 2014): 1152–56. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.1152.

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Recently, high-strength alloy steels have been developed and used for various products. It is well known that fretting fatigue does not show fatigue limit. In other words, fretting fatigue failure may occur in very high cycle regime more than 107 cycles. However, it is difficult to investigate fretting fatigue property in very high cycle regime by using conventional fatigue testing machines because it is time-consuming. In this study, a fretting fatigue testing method for carburized alloy steels in very high cycle regime is explored by using an ultrasonic torsional fatigue testing machine. Carburized SCM420H was used for investigation. The experimental results showed that it is possible to conduct fretting fatigue testing of carburized alloy steels by using an ultrasonic torsional fatigue testing machine.

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Lee, Dong Hyung, Seok Jin Kwon, Jae Boong Choi, and Young Jin Kim. "Observations of Fatigue Damage in the Press-Fitted Shaft under Bending Loads." Key Engineering Materials 326-328 (December 2006): 1071–74. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.1071.

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In this paper, the characterization of fretting damage on press-fitted specimens is proposed by experimental methods. A series of fatigue tests and interrupted fatigue tests on pressfitted specimens were carried out by using a rotate bending fatigue test machine. Macroscopic and microscopic characteristics were observed to identify fretting damage mechanism with a scanning electron microscope (SEM) and profilometer. The mechanism of fretting fatigue damage on pressfitted structure is discussed from experimental results. It is found that small cracks of 30~40m in depth are initiated when the specimen reached about 10% of the total life, and thus almost 90% of the fretting fatigue life of press fits can be considered to be in the crack propagation phase. Most of fatigue cracks are initiated at 1050m inner side of contact edge, and multiple cracks are nucleated and interconnected in the fretted surface. The crack nucleation angle in the near contact edge region is larger than that in the inside of the contact edge region. The fretting wear increased with increasing fatigue cycle. Since the fretting wear is relevant to the evolution of surface profile, the fretting fatigue is observed to be closely related with the fretting wear.

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Akahori, Toshikazu, Mitsuo Niinomi, Hisao Fukui, and Akihiro Suzuki. "Fatigue Performance of Low Rigidity Titanium Alloy for Biomedical Applications." Materials Science Forum 449-452 (March 2004): 1265–68. http://dx.doi.org/10.4028/www.scientific.net/msf.449-452.1265.

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Microstructures of Ti-29Nb-13Ta-4.6Zr (TNTZ) aged at temperatures between 573 and 723 K after solution treatment at 1063 K have super fine omega phase, or􀀂 both super fine alpha and omega phases, respectively in beta phase with an average grain diameter of 20 µm. Plain fatigue strength of TNTZ aged after solution treatment is much greater than that of as-solutionized TNTZ in both low cycle fatigue and high cycle fatigue life regions. This is due to the improvement of the balance of strength and ductility by the precipitation of alpha phase. Fretting fatigue strength of TNTZ conducted with various heat treatments decreases dramatically as compared with their plain fatigue strength in both low cycle fatigue and high cycle fatigue life regions. In this case, the decreasing ratio of fretting fatigue life increases with increasing the small crack propagation area where both the tangential force and frictional force at the contact plane of pad exist. In fretting fatigue in air, the ratio of fretting damage (Pf/Ff), where Pf and Ff stand for plain fatigue limit and fretting fatigue limit, respectively, increases with increasing elastic modulus. In fretting fatigue in Ringers solution, the passive film on specimen surface is broken by fretting action in TNTZ, which have excellent corrosion resistance, and, as a result, corrosion pits that lead to decreasing fretting fatigue strength especially in high cycle fatigue life region, are formed on its surface.

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Alexander Araújo, José, Gabriel Magalhães Juvenal Almeida, Fábio Comes Castro, and Raphael Araújo Cardoso. "Multiaxial High Cycle Fretting Fatigue." MATEC Web of Conferences 300 (2019): 02002. http://dx.doi.org/10.1051/matecconf/201930002002.

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The aim of this work is to show that multiaxial fatigue can be successfully adpted to model fretting problems. For instance, the paper presents (i) the critical direction method, as an alternative to the critical plane concept, to model the crack initiation path under fretting conditions and (ii) studies on size effects considering the influence of incorporating fretting wear on the life estimation. A wide range of new data generated by a two actuators fretting fatigue rig considering Al 7050-T7451 and of Ti-6Al-4V aeronautical alloys is produced to validate these analyses. It is shown that, the development of appropriate tools and techniques to incorporate the particularities of the fretting phenomenon into the multiaxial fatigue problem allow an accurate estimate of the fretting fatigue resistance/life in the medium high cycle regime. Such tools and techniques can be extended to the design of other mechanical components under similar stress enviroments.

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Lee, Dong Hyung, Byeong Choon Goo, Chan Woo Lee, Jae Boong Choi, and Young Jin Kim. "Fatigue Life Evaluation of Press-Fitted Specimens by Using Multiaxial Fatigue Theory at Contact Edge." Key Engineering Materials 297-300 (November 2005): 108–14. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.108.

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In the shrink or press-fitted shafts such as railway axles, fretting can occur by cyclic stress and micro-slippage due to local movement between shaft and boss. When the fretting occurs in the press-fitted shaft, the fatigue strength remarkably decreases compared with that of without fretting. In this paper fretting fatigue life of press-fitted specimens was evaluated using multiaxial fatigue criteria based on critical plane approaches. An elastic-plastic analysis of contact stresses in a press-fitted shaft in contact with a boss was conducted by finite element method and micro-slip due to the bending load was analyzed. The number of cycles of fretting fatigue and the crack orientation were compared with the experimental results obtained by rotating bending tests. It is found that the crack initiation of fretting fatigue between shaft and boss occurs at the contact edge and the normal stress on the critical plane of contact interface was an important parameter for fretting fatigue crack initiation. Furthermore, the results indicated that a critical plane parameter could predict the orientation of crack initiation in the press-fitted shaft.

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Zhang, Xiao Hua, Ding Gen Xiang, and Dao Xin Liu. "Beam Assisted Deposition Film for Improving Fretting Fatigue Resistance of Ti-8Al-1Mo-1V Alloy at Elevated Temperature." Key Engineering Materials 535-536 (January 2013): 346–49. http://dx.doi.org/10.4028/www.scientific.net/kem.535-536.346.

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Ion-beam-assisted deposition (IBAD) was investigated as a potential way to increase the fretting fatigue resistance of Ti-8Al-1Mo-1V alloy at elevated temperature. Three coating systems, hard TiN film with good toughness and soft Al film of low friction and Cu/Ni multilayer films with modulation period thickness of 20~600nm have been applied on the base material. Coefficients of friction and fretting fatigue lives of the specimens with and without film were compared. The film damage was characterized through scanning electron microscopy. The results indicate that the IBAD technique can prepare all films with high bonding strength and excellent lubricating properties. The fretting fatigue life of the Ti-8Al-1Mo-1V alloy with the TiN film was improved by a factor of 2.4 as compared to the uncoated substrate at elevated temperature because of the excellent wear and fatigue resistance and good toughness of the film. Excellent wear resistance and good anti-fatigue properties could be simultaneously obtained by a single hard film to control the fretting fatigue damage. The IBAD Al film significantly improved the fretting fatigue resistance of the Ti-8Al-1Mo-1V alloy at elevated temperature for good lubricating property. The fretting fatigue resistance of the Ti-8Al-1Mo-1V alloy was improved by all the Cu/Ni multilayer films. However, the fretting fatigue resistance did not increase monotonically with the modulation period of the films. Films with a modulation period of 200 nm had the highest fretting fatigue resistance among the multilayer films prepared owing to their high toughness and strength and good lubricating and anti-fatigue action. The fretting fatigue resistance of films with a modulation period of 20 nm was low because of the poor fracture toughness and crack propagation resistance, even though these films had the highest hardness and good fretting wear resistance. Thus, comprehensive properties, including high toughness and strength, must be considered for multilayer films used to improve the fretting fatigue resistance of titanium alloys.

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Navarro, Carlos, Jesús Vázquez, and Jaime Domínguez. "Life Assessment in Fretting Fatigue." Key Engineering Materials 618 (July 2014): 99–122. http://dx.doi.org/10.4028/www.scientific.net/kem.618.99.

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Fretting fatigue denotes the detrimental effect on a material arising from the cyclic sliding of two contacting surfaces with small relative displacements between them. One or both of the components in contact may be subject to bulk stresses caused by cyclic loads. The assessment of the fretting fatigue strength and life of any component is a complicated issue due to the many parameters affecting it, the complexity of the stress fields cyclic variation during fretting and the uncertainties associated to the contact conditions. This paper describes some singular aspects of fretting fatigue related to strength analysis and testing, presents a procedure developed by the authors during the last years to estimate the fretting fatigue strength and life and compares the assessment outcomes with the results of tests carried out by different authors.

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Berthier, Y., Ch Colombie´, L. Vincent, and M. Godet. "Fretting Wear Mechanisms and Their Effects on Fretting Fatigue." Journal of Tribology 110, no. 3 (July 1, 1988): 517–24. http://dx.doi.org/10.1115/1.3261663.

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Fretting wear and fretting fatigue are governed by the rate of formation of materials (third-bodies) between the initial contact surfaces. Furthermore, the third-bodies must be maintained within the contact. The issue of the race between third-body formation and subsurface damage conditions the effect of fretting on fatigue. That race lasts for only a few hundred or at best a few thousand cycles. Effective third-bodies (or good anti-fretting lubricants) must adhere strongly to the rubbing surfaces, and be able to accommodate at least part of the relative displacement. Great care in the design of test equipment has to be exercised before definitive results on the effect of amplitude and frequency on either fretting fatigue or fretting wear can be obtained for a given contact condition, given materials and given environments.

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KWON, JAE DO, SEUNG WAN WOO, IL SUP CHUNG, DONG HWAN YOON, and DAE KYU PARK. "A STUDY ON FRETTING FATIGUE LIFE IN ELEVATED TEMPERATURE FOR INCOLOY 800." International Journal of Modern Physics B 24, no. 15n16 (June 30, 2010): 2561–66. http://dx.doi.org/10.1142/s021797921006526x.

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Incoloy 800, which is used within steam generator tubes, is a heat resistant material since it is an iron-nickel-chromium alloy. However, construction of a systematic database is needed to receive integrity data defecting insurance of specific data about room and elevated temperature fretting fatigue behavior for Incoloy 800. Accordingly, this study investigates the specific change in fatigue limitations under the condition of the fretting fatigue as compared to that under the condition of the plain fatigue by performing plain and fretting fatigue tests on Incoloy 800 at 320°C, real operating temperature and at room-temperature, respectively. The change in the frictional force is measured during the fretting fatigue testing against the repeated cycle, and the mechanism of fretting fatigue is investigated through the observation of the fatigue-fracture surface.

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Buciumeanu, M., A. S. Miranda, and F. S. Silva. "Influence of Wear Properties on Fretting Fatigue Life of a CK45 Alloy and the Al7175 Alloy." Materials Science Forum 587-588 (June 2008): 971–75. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.971.

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The main objective of this work was to study the influence of the wear properties of two commercial alloys (CK45 and Al7175) on their fretting fatigue behavior. It is verified the effect of material local degradation by wear on a fatigue strength reduction factor, namely the stress concentration factor, and on the overall fretting fatigue life of these materials. The fretting fatigue phenomenon is a synergetic effect between wear and fatigue. It is dependent on both the fatigue and the wear properties of the materials. Material properties promoting an increase in wear resistance should enhance fretting fatigue life.

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Li, Wen, Ri Dong Liao, Li Tao Liu, and Zheng Xing Zuo. "Analysis of Fretting Crack Propagation Behavior with X-FEM Method." Applied Mechanics and Materials 157-158 (February 2012): 1162–66. http://dx.doi.org/10.4028/www.scientific.net/amm.157-158.1162.

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Fretting fatigue cracks always initial at the tralling of contact region, because the stresses in the vicinity of the contact zone exhibit steep gradients. A fracture mechanics approach is usually used to estimate fretting fatigue propagation life. In this paper, extended finite element method combined with fracture mechanics is used to study fretting crack propagation behaviors. The computation results reveal that fretting crack nucleation is mainly decided by fretting, and the cycle bulk stress is the main reason for crack propagation. Also the X-FEM exhibits merits in fretting fatigue problem.

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Namjoshi, S. A., V. K. Jain, and S. Mall. "Effects of Shot-Peening on Fretting-Fatigue Behavior of Ti-6Al-4V." Journal of Engineering Materials and Technology 124, no. 2 (March 26, 2002): 222–28. http://dx.doi.org/10.1115/1.1448323.

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The effects of shot-peening on the fretting fatigue behavior of titanium alloy, Ti-6Al-4V were investigated. Specimens were shot-peened as per AMS 2432 standard. X-ray diffraction analysis measured a maximum compressive stress of 800 MPa at the specimen surface, which reduced to zero at a depth of 188 μm. The compensatory residual tensile stress in the specimen was estimated using a curve fitting technique, the maximum value of which was found to be 260 MPa at a depth of 255 μm. Fretting fatigue tests were conducted at room temperature at a cyclic frequency of 200 Hz. Scanning electron microscopy of the shot-peened fretting fatigue specimens showed that the crack initiated at a point below the contact surface, the depth of which was in the range of 200–300 μm. Finite element analysis of the fretting fatigue specimens was also conducted. Fatigue life diagrams were established for the fretting fatigue specimens with and without shot-peening, and were compared to those under the plain fatigue condition, i.e. without fretting. Shot-peening improved the fretting fatigue life of Ti-6Al-4V; furthermore, it moved the crack initiation site from the fretting contact region to a region inside the specimen. Moreover, stress analysis showed that the fatigue failure of shot-peened specimens was caused by the compensatory tensile residual stress.

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Huang, Chang Wu, Guang Xue Yang, Nian Jun Fu, and Ji Long Xie. "Research on Fretting Fatigue Life of Interference Fit and its Influencing Factors." Applied Mechanics and Materials 251 (December 2012): 293–300. http://dx.doi.org/10.4028/www.scientific.net/amm.251.293.

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Interference-Fit Components, Especially under Rotating Bending Loads, Usually Suffer Fretting Fatigue, which Tremendously Reduces Service Lives of the Components. by Taking Specimens with Different Interference-Fit Parameters for Fatigue Test, their Fretting Fatigue Lives Could Be Obtained. and through Using Finite Element Analysis (FEA) Software ABAQUS, the Ruiz Fretting Damage Parameter K(x) for each Tested Fatigue Specimen Were Achieved. then, According to the Test Data and the Results of Calculations, Two Fretting-Fatigue Life Prediction Models (model 1：N=c•K-α, and Model 2：N=λN0—m•Kn) )based on the Ruiz Fretting Damage Parameter Were Fitted, and their Ratλionalities and Validities Were Analyzed. at the same Time, the Influences of Interference-Fit Parameters -Interference Value (V), Casing outside Diameter (D), and Casing Length (L), Contact Pressure (p) and Friction Shear Stress (τ) on Fretting Fatigue Life Have Been Analyzed. the Results Showed that the Two Fitalic Textretting Fatigue Life Prediction Models Used in this Paper Were Valid, but, in Contrast, the Second One Was More Accurate and Rational; and that Fretting Fatigue Life (N) Decreased as V, D, L, P or τ Increasing.

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Takeda, Junji, Mitsuo Niinomi, and Toshikazu Akahori. "Effects of Contact Pressure on Fretting Fatigue Characteristics of Ti-4.5Al-3V-2Mo-2Fe with Acicular Alpha Structure." Materials Science Forum 475-479 (January 2005): 585–88. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.585.

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The effects of microstructure and contact pressure on fretting fatigue characteristics of Ti-4.5Al-3V-2Mo-2Fe conducted with annealing at 1123 K and 1223 K were investigated in this study. Fretting fatigue tests in low and high cycle fatigue life regions of the alloys with equiaxed α and acicular α structures were carried out at each contact pressure of 10, 15, 30, 45, 75, 105 and 153 MPa. In the alloy with equiaxed α structure, fretting fatigue strength tends to be very low at contact pressures of 10 MPa and 15 MPa in low and high cycle fatigue life regions, respectively. Furthermore, fretting fatigue strength tends to be nearly constant at the contact pressure over 45 MPa in each fatigue life region. On the other hand, in the alloy with acicular α structure, fretting fatigue strength tends to be very low at contact pressures of 15 MPa and 30 MPa in low and high cycle fatigue life regions, respectively. Furthermore, fretting fatigue strength tends to be nearly constant at contact pressures of 45 MPa and over 30 MPa in low and high fatigue life regions, respectively.

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Baptista, C. A. R. P., L. S. Rossino, M. A. S. Torres, and C. Y. Shigue. "Evaluation of the fretting fatigue behaviour of commercially pure titanium." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 221, no. 3 (July 1, 2007): 143–50. http://dx.doi.org/10.1243/14644207jmda122.

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Fretting fatigue occurs when the contact surfaces of two components undergo small oscillatory movement while they are subjected to a clamping force. A cyclic external load gives rise to the early initiation of fatigue cracks, thus reducing their service life. In this paper, the fretting fatigue behaviour of commercially pure titanium flat samples (1.5mm thick) is evaluated. A fretting device composed of a frame, load cell, and two screw-mounted cylindrical fretting pads with convex extremities was built and set to a servo-hydraulic testing machine. The fatigue tests were conducted under load control at a frequency of 10 Hz and stress ratio R = 0.1, with various contact load values applied to the fretting pads. Additional tests under inert environment allowed assessing the role of oxidation on the wear debris formation. The fracture surfaces and fretting scars were analysed via scanning electron microscopy in order to evaluate the surface damage evolution and its effect on the fatigue crack features. The effect of the fretting condition on the S-N curve of the material in the range of 104-106 cycles is described. Fatigue crack growth calculations allowed estimating the crack initiation and propagation lives under fretting conditions. The effect of the fretting condition in fatigue life is stronger for the lower values of cyclic stress and does not seem to depend on the contact loading value.

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Vadiraj, Aravind, and M. Kamaraj. "Fretting Fatigue Studies of Surface Modified Biomedical Titanium Alloys." Materials Science Forum 539-543 (March 2007): 681–86. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.681.

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Fretting fatigue is a form of adhesive wear damage caused due to tangential micro motion of two contact bodies under normal pressure and cyclic load. Biomedical implants such as hip joints and bone plates undergo fretting fatigue damage leading to premature in-vivo failure and revision surgeries. Surface modification of implants delays the process of fretting and thereby improves the life of these medical devices. This work involves investigation of fretting fatigue damage of surface treated titanium alloys couple. The surface treatment involves PVD TiN coating, Plasma nitriding, Ion Implantation, Laser nitriding and thermal oxidation. Fretting of all surface treated alloys have shown both adhesive and abrasive mode of contact damage. Friction coefficient of all the surface treated pairs is less compared to uncoated alloys. Plasma nitrided pairs have shown the best performance in terms of fretting fatigue life and friction coefficient compared to all other coatings. Ion implanted pairs have shown little improvement in fretting fatigue lives due to shallow modified layer. PVD TiN coated pairs have irregular friction pattern due to abrasive particles at contact. Thermal oxidation and Laser nitriding have shown poor fretting fatigue performance due to high case thickness.

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Hattori, Toshio, Naoya Nishimura, and Minoru Yamashita. "Fretting Fatigue Strength and Life Estimation Considering the Fretting Wear Process." Key Engineering Materials 353-358 (September 2007): 882–85. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.882.

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In this paper we present the estimation methods of fretting wear process and fretting fatigue life using this wear process. Firstly the fretting-wear process was estimated using contact pressure and relative slippage. And then the stress intensity factor for cracking due to fretting fatigue was calculated by using contact pressure and frictional stress distributions, which were analyzed by the finite element method. The S-N curves of fretting fatigue were predicted by using the relationship between the calculated stress intensity factor range ( #K) with the threshold stress intensity factor range ( #Kth) and the crack propagation rate (da/dN) obtained using CT specimens of the material. Finaly fretting fatigue tests were conducted on Ni-Mo-V steel specimens. The S-N curves of our experimental results were in good agreement with the analytical results obtained by considering fretting wear process. Using these estimation methods we can explain many fretting troubles in industrial fields.

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Yang, Xufeng, Hongjian Zhang, Haitao Cui, and Changlong Wen. "Effect of Laser Shock Peening on Fretting Fatigue Life of TC11 Titanium Alloy." Materials 13, no. 21 (October 22, 2020): 4711. http://dx.doi.org/10.3390/ma13214711.

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The purpose of this paper is to investigate the performance of laser shock peening (LSP) subjected to fretting fatigue with TC11 titanium alloy specimens and pads. Three laser power densities (3.2 GW/cm2, 4.8 GW/cm2 and 6.4 GW/cm2) of LSP were chosen and tested using manufactured fretting fatigue apparatus. The experimental results show that the LSP surface treatment significantly improves the fretting fatigue lives of the fretting specimens, and the fretting fatigue life increases most when the laser power density is 4.8 GW/cm2. It is also found that with the increase of the laser power density, the fatigue crack initiation location tends to move from the surface to the interior of the specimen.

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Neu, Richard W. "The Fretting Fatigue Behavior of Ti-6Al-4V." Key Engineering Materials 378-379 (March 2008): 147–62. http://dx.doi.org/10.4028/www.scientific.net/kem.378-379.147.

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This paper reviews the understanding of fretting fatigue with an emphasis on the behavior of Ti-6Al-4V. Advances in life prediction and assessment approaches are highlighted. The role of microstructure on fretting fatigue and its use to detect fretting fatigue damage can now be considered in assessment strategies. Various palliatives are used to enhance the fretting fatigue resistance. These include treatments to introduce compressive residual stress and surface coatings that reduce friction and/or protect the underlying structural material.

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Xu, Yazhou, Zhen Sun, and Yuqing Zhang. "Experimental and Numerical Investigations of Fretting Fatigue Behavior for Steel Q235 Single-Lap Bolted Joints." Advances in Materials Science and Engineering 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/6375131.

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This work aims to investigate the fretting fatigue life and failure mode of steel Q235B plates in single-lap bolted joints. Ten specimens were prepared and tested to fit theS-Ncurve. SEM (scanning electron microscope) was then employed to observe fatigue crack surfaces and identify crack initiation, crack propagation, and transient fracture zones. Moreover, a FEM model was established to simulate the stress and displacement fields. The normal contact stress, tangential contact stress, and relative slipping displacement at the critical fretting zone were used to calculate FFD values and assess fretting fatigue crack initiation sites, which were in good agreement with SEM observations. Experimental results confirmed the fretting fatigue failure mode for these specimens. It was found that the crack initiation resulted from wear regions at the contact surfaces between plates, and fretting fatigue cracks occurred at a certain distance away from hole edges. The proposed FFD-Nrelationship is an alternative approach to evaluate fretting fatigue life of steel plates in bolted joints.

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Zhang, Hongjian, Xufeng Yang, Haitao Cui, and Weidong Wen. "Study on the Effect of Laser Quenching on Fretting Fatigue Life." Metals 9, no. 5 (May 15, 2019): 566. http://dx.doi.org/10.3390/met9050566.

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Laser quenching hardening is one of the most used surface treated technologies. In order to study the effect of laser quenching on the fretting fatigue life, fretting fatigue experiments of TC11 (Ti-6.5Al-1.5Zr-3.5Mo-0.3Si) titanium alloy specimens with different surface conditions were carried out on a special hydraulic servo fatigue test system. The experimental results showed that laser quenching hardening has a good performance in increasing the fretting fatigue lives of the TC11 alloy. However, the effects of laser quenching on fretting fatigue are more obviously at low stress level than at high stress level, the fretting fatigue life was increased by 110.78% at low stress level and 17.56% at high stress level, respectively. Based on the critical plane approach, the traditional SWT (Smith–Watson–Topper) parameter was modified and used to describe the fretting fatigue life of the TC11 alloy after hardening by the consideration of the variations of the hardening layer’s elastic modulus. Compared with the experimental results, all the errors of the predicted results lied in the error band of two.

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Park, Dae Kyu, Yong Tak Bae, Sung Jong Choi, Young Suck Chai, and Jae Do Kwon. "The Evaluation of Fretting Fatigue Life for Inconel 600 and 690 Alloy." Key Engineering Materials 321-323 (October 2006): 703–6. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.703.

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The initial crack under fretting condition occurs at lower stress amplitude and at lower cycles of cyclic loading than that under plain fatigue condition. INCONEL alloy 600 and 690 are high–chromium nickel alloy having excellent resistance to many corrosive aqueous media and high-temperature atmospheres. In this paper, the effect of fretting damage on fatigue behavior for INCONEL alloy 600 and 690 were studied. Also, various kinds of mechanical tests such as hardness, tension and plain fatigue tests are performed. Fretting fatigue tests were carried out with flat-flat contact configuration using a bridge type contact pad and plate type specimen. Through these experiments, it is found that the fretting fatigue strength decreased about 40~70% compared to the plain fatigue strength in two materials. In fretting fatigue, the wear debris is observed on the contact surface, and the oblique micro-cracks at an earlier stage are initiated. These results can be used as basic data in a structural integrity evaluation of heat and corrosion resisting alloy considering fretting damages.

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Jayaprakash, Murugesan, and Yoshiharu Mutoh. "Fretting Fatigue Behaviour of 12-Cr Steels and Strength Prediction." Materials Science Forum 783-786 (May 2014): 920–25. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.920.

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In the present study fretting fatigue behaviour of 12-Cr steels at 300°C has been investigated under three different contact pressures. For comparisons fretting fatigue behaviour of 12-Cr steels at room temperature has also been investigated. The result showed that with an increase in contact pressure and temperature, the fretting fatigue significantly reduces. Finite element analyses were carried out to evaluate the stress distribution (tangential stress and compressive stress) at the contact during fretting fatigue. Tangential stress range – compressive stress range diagram (TSR-CSR diagram) were constructed for 12-Cr steel at room temperature and at 300°C. Then, a generalized TSR-CSR diagram to predict fretting fatigue strength of 12-Cr steel regardless of contact pressure and temperature was constructed.

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Miyoshi, Dr Kazuhisa. "Fretting fatigue and wear." Tribology International 36, no. 2 (February 2003): 69. http://dx.doi.org/10.1016/s0301-679x(02)00133-0.

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Waterhouse, R. B. "Mechanics of fretting fatigue." Tribology International 29, no. 2 (February 1996): 175–76. http://dx.doi.org/10.1016/s0301-679x(99)80001-2.

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Mutoh, Yoshiharu. "Mechanisms of Fretting Fatigue." JSME international journal. Ser. A, Mechanics and material engineering 38, no. 4 (October 15, 1995): 405–15. http://dx.doi.org/10.1299/jsmea1993.38.4_405.

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Rooke, D. P., and P. R. Edwards. "WAVEFORMS IN FRETTING FATIGUE." Fatigue & Fracture of Engineering Materials and Structures 11, no. 6 (November 1988): 447–65. http://dx.doi.org/10.1111/j.1460-2695.1988.tb01396.x.

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Hills, D. A. "Mechanics of fretting fatigue." Wear 175, no. 1-2 (June 1994): 107–13. http://dx.doi.org/10.1016/0043-1648(94)90173-2.

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KWON, JAE-DO, DAE-KYU PARK, SEUNG-WAN WOO, and YOUNG-SUCK CHAI. "A STUDY ON THE FRETTING FATIGUE LIFE OF ZIRCALOY ALLOYS." Modern Physics Letters B 22, no. 11 (May 10, 2008): 851–56. http://dx.doi.org/10.1142/s0217984908015498.

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Studies on the strength and fatigue life of machines and structures have been conducted in accordance with the development of modern industries. In particular, fine and repetitive cyclic damage occurring in contact regions has been known to have an impact on fretting fatigue fractures. The main component of zircaloy alloy is Zr , and it possesses good mechanical characteristics at high temperatures. This alloy is used in the fuel rod material of nuclear power plants because of its excellent resistance. In this paper, the effect of the fretting damage on the fatigue behavior of the zircaloy alloy is studied. Further, various types of mechanical tests such as tension and plain fatigue tests are performed. Fretting fatigue tests are performed with a flat-flat contact configuration using a bridge-type contact pad and plate-type specimen. Through these experiments, it is found that the fretting fatigue strength decreases by about 80% as compared to the plain fatigue strength. Oblique cracks are observed in the initial stage of the fretting fatigue, in which damaged areas are found. These results can be used as the basic data for the structural integrity evaluation of corrosion-resisting alloys considering the fretting damages.

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Journal articles on the topic 'Fatigue en fretting'

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