Log in

Relevant bibliographies by topics / High-cycle fatigue; low-cycle fatigue; Ti-6Al-4V / Journal articles

To see the other types of publications on this topic, follow the link: High-cycle fatigue; low-cycle fatigue; Ti-6Al-4V.

Journal articles on the topic 'High-cycle fatigue; low-cycle fatigue; Ti-6Al-4V'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'High-cycle fatigue; low-cycle fatigue; Ti-6Al-4V.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Lanning, D., G. K. Haritos, T. Nicholas, and D. C. Maxwell. "Low-cycle fatigue/high-cycle fatigue interactions in notched Ti-6Al-4V*." Fatigue & Fracture of Engineering Materials & Structures 24, no. 9 (September 28, 2001): 565–77. http://dx.doi.org/10.1046/j.1460-2695.2001.00411.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Zhang, Peng, Allen Naihui He, Fei Liu, Kaifei Zhang, Junjie Jiang, and David Zhengwen Zhang. "Evaluation of Low Cycle Fatigue Performance of Selective Laser Melted Titanium Alloy Ti–6Al–4V." Metals 9, no. 10 (September 25, 2019): 1041. http://dx.doi.org/10.3390/met9101041.

Full text

Abstract:

The material of Ti–6Al–4V has been widely applied in various industries, such as automobile, aerospace, and medical due to its high specific strength, superior thermal stability and strong corrosion resistance. In the recent decades, selective laser melting (SLM) has become an attractive method to fabricate Ti–6Al–4V parts, thanks to its significant advantages in low material consumption, the high degree of freedom in design, low carbon footprint, etc. Predictability of SLM material fatigue properties is especially important for the safety-critical structures under dynamic load cases. The present research is aimed at evaluating the low cycle fatigue (LCF) performance of SLM Ti–6Al–4V under high loading states. LCF tests were performed for as-built and annealed SLM Ti–6Al–4V. Comparison between LCF properties of SLM Ti–6Al–4V and the wrought Ti–6Al–4V was also made. It was found that as-built SLM Ti–6Al–4V demonstrated a comparable LCF performance with the wrought material. The LCF life of as-built SLM Ti–6Al–4V was longer than that of wrought Ti–6Al–4V at lower strain amplitudes. However, the wrought Ti–6Al–4V had better LCF performance at higher strain amplitudes. The results revealed that the porosity in the as-built SLM material exerted much more impact on the degradation of the material at high strain amplitudes. Annealing deteriorated the LCF performance of SLM Ti–6Al–4V material due to the formation of coarser grains. The cyclic Ramberg–Osgood and the Basquin–Coffin–Manson models were fitted to depict the cyclic stress–strain and the strain–life curves for the SLM Ti–6Al–4V, based on which the LCF performance parameters were determined. In addition, the fatigue fracture surfaces were observed by using scanning electron microscopy (SEM), and the results indicated that fatigue cracks originated from the surface or subsurface defects.

APA, Harvard, Vancouver, ISO, and other styles

3

Ritchie, Davidson, Boyce, Campbell, and Roder. "High-cycle fatigue of Ti-6Al-4V." Fatigue & Fracture of Engineering Materials & Structures 22, no. 7 (July 1999): 621–31. http://dx.doi.org/10.1046/j.1460-2695.1999.00194.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Tang, Luyao, Jiangkun Fan, Hongchao Kou, Bin Tang, and Jinshan Li. "Effect of Oxygen Variation on High Cycle Fatigue Behavior of Ti-6Al-4V Titanium Alloy." Materials 13, no. 17 (September 1, 2020): 3858. http://dx.doi.org/10.3390/ma13173858.

Full text

Abstract:

The element oxygen is expected to be a low-cost, strengthening element of titanium alloys due to its strong solid solution strengthening effect. High cycle fatigue behaviors of Ti-6Al-4V alloys with different oxygen contents (0.17%, 0.20%, 0.23% wt.%) were investigated in this paper. The results illustrated that Ti-6Al-4V-0.20O alloy possesses the highest fatigue strength and the lowest fatigue crack propagation rate. The fatigue fracture morphology verified that the fatigue cracks propagated transgranularly in both Ti-6Al-4V-0.17O and Ti-6Al-4V-0.20O alloys, and the fatigue cracks tended to extend intergranularly in the Ti-6Al-4V-0.23O alloy. The maximum nano-hardness varied from the <0001> direction to the <1¯21¯0> and <011¯0> directions with the increasing oxygen content, which suggested that the dominant slip system varied from prismatic slip to pyramidal slip. The number of the <c→+a→> type dislocations increased with the oxygen content, which indicated that the number of the first-order pyramidal and the second-order pyramidal <c→+a→> slip systems increased. The oxygen can significantly change the fatigue fracture mechanism of Ti-6Al-4V alloy: From transgranular fracture to intergranular fracture. These results are expected to provide valuable reference for the optimization of the composition and mechanical properties of titanium alloys.

APA, Harvard, Vancouver, ISO, and other styles

5

Wu, Yan Zeng, Qing Yuan Wang, and Qiao Lin Ouyang. "Influence of Subjection to Plasma Nitriding Surface Modifications on Ultra-High Cycle Fatigue Behavior of Ti-6Al-4V." Applied Mechanics and Materials 105-107 (September 2011): 1731–35. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.1731.

Full text

Abstract:

Using the ultrasonic fatigue test method, the influence of subjection to plasma nitriding surface modifications on the ultra-high cycle fatigue behavior of Ti-6Al-4V was investigated, then a comparison with corresponding behaviors of the normal Ti-6Al-4V was made. The results show the S-N curve of Ti-6Al-4V with plasma nitriding surface modifications still continuously declines, no conventional fatigue limit exists for Ti-6Al-4V. Plasma nitriding surface modifications enhance surface hardness, but they make the material fatigue strength decrease by about 17 %. The fractography of fatigue failure has been observed by scanning electron microscopy. The observation shows that fatigue failure initiates from internal of specimen after the fatigue life of 108cycles and fatigue cracks mainly initiate from the surface of specimen before the fatigue life of 108cycles.

APA, Harvard, Vancouver, ISO, and other styles

6

Shojima, Kenji, Sabine Weldle, Saburo Okazaki, Masahiro Endo, Dietmar Eifler, and Frank Balle. "Notch Effects in High Cycle Fatigue of Ti-6Al-4V." Materials Science Forum 750 (March 2013): 232–35. http://dx.doi.org/10.4028/www.scientific.net/msf.750.232.

Full text

Abstract:

In this study, a series of experimental studies was conducted to investigate the fatigue behavior of Ti-6Al-4V alloy at room temperature. Specifically, by inspecting the cylindrical specimens with a circumferential notch of different depths (20-200µm) and notch root radii (20-100µm), the notch effect was systematically investigated with tension-compression fatigue tests (R = –1). To quantify the effects of small notch, the -parameter model was adopted and its applicability for Ti-6Al-4V alloy was examined. Finally, the fatigue characteristics are discussed in conjunction with the behavior of small fatigue cracks at notches.

APA, Harvard, Vancouver, ISO, and other styles

7

Bin Jamal M, Noushad, Aman Kumar, Chebolu Lakshmana Rao, and Cemal Basaran. "Low Cycle Fatigue Life Prediction Using Unified Mechanics Theory in Ti-6Al-4V Alloys." Entropy 22, no. 1 (December 23, 2019): 24. http://dx.doi.org/10.3390/e22010024.

Full text

Abstract:

Fatigue in any material is a result of continuous irreversible degradation process. Traditionally, fatigue life is predicted by extrapolating experimentally curve fitted empirical models. In the current study, unified mechanics theory is used to predict life of Ti-6Al-4V under monotonic tensile, compressive and cyclic load conditions. The unified mechanics theory is used to derive a constitutive model for fatigue life prediction using a three-dimensional computational model. The proposed analytical and computational models have been used to predict the low cycle fatigue life of Ti-6Al-4V alloys. It is shown that the unified mechanics theory can be used to predict fatigue life of Ti-6Al-4V alloys by using simple predictive models that are based on fundamental equation of the material, which is based on thermodynamics associated with degradation of materials.

APA, Harvard, Vancouver, ISO, and other styles

8

Ebara, Ryuichiro. "Grain Size Effect on Low Cycle Fatigue Behavior of High Strength Structural Materials." Solid State Phenomena 258 (December 2016): 269–72. http://dx.doi.org/10.4028/www.scientific.net/ssp.258.269.

Full text

Abstract:

This paper presents grain size effect on low cycle fatigue behavior of high strength maraging steel with gain size of 20,60 and 100μm and Ti-6Al-4V alloy with grain size of 0.5,1.4 and 5.1μm. Low cycle fatigue strength of the maraging steel depends on grain size in number of cycles up to 103.The smaller the grain size, the higher the low cycle fatigue strength was. Quasci-cleavage fracture surfaces were predominant for material with grain size of 20μm,while intergranular fracture surfaces were predominant for materials with larger grain size in number of cycles lower than 60. Striation was predominant for all tested materials in number of cycles higher than 60.Low cycle fatigue strength of Ti-6Al-4V alloy also depends on grain size in number of cycles up to 104. Grain size dependent transgranular fracture surfaces were predominant for materials with ultra-fine grain size of 0.5μm and fine grain size of 1.4μm.

APA, Harvard, Vancouver, ISO, and other styles

9

Rajan, Sidharth, Priti Wanjara, Javad Gholipour, and Abu Syed Kabir. "Fatigue Behavior of Linear Friction Welded Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo-0.1Si Dissimilar Welds." Materials 14, no. 11 (June 7, 2021): 3136. http://dx.doi.org/10.3390/ma14113136.

Full text

Abstract:

The use of joints fabricated from dissimilar titanium alloys allows the design of structures with local properties tailored to different service requirements. To develop welded structures for aerospace applications, particularly under critical loading, an understanding of the fatigue behavior is crucial, but remains limited, especially for solid-state technologies such as linear friction welding (LFW). This paper presents the fatigue behavior of dissimilar titanium alloys, Ti–6Al–4V (Ti64) and Ti–6Al–2Sn–4Zr–2Mo–0.1Si (Ti6242), joined by LFW with the aim of characterizing the stress versus number of cycles to failure (S-N) curves in both the low- and high-cycle fatigue regimes. Prior to fatigue testing, metallurgical characterization of the dissimilar alloy welds indicated softening in the heat-affected zone due to the retention of metastable β, and the typical practice of stress relief annealing (SRA) for alleviating the residual stresses was effective also in transforming the metastable β to equilibrated levels of α + β phases and recovering the hardness. Thus, the dissimilar alloy joints were fatigue-tested in the SRA (750 °C for 2 h) condition and their low- and high-cycle fatigue behaviors were compared to those of the Ti64 and Ti6242 base metals (BMs). The low-cycle fatigue (LCF) behavior of the dissimilar Ti6242–Ti64 linear friction welds was characterized by relatively high maximum stress values (~ 900 to 1100 MPa) and, in the high-cycle fatigue (HCF) regime, the fatigue limit of 450 MPa at 107 cycles was just slightly higher than that of the Ti6242 BM (434 MPa) and the Ti64 BM (445 MPa). Fatigue failure of the dissimilar titanium alloy welds in the low-cycle and high-cycle regimes occurred, respectively, on the Ti64 and Ti6242 sides, roughly 3 ± 1 mm away from the weld center, and the transitioning was reasoned based on the microstructural characteristics of the BMs.

APA, Harvard, Vancouver, ISO, and other styles

10

MALL, S. "Effect of predamage from low cycle fatigue on high cycle fatigue strength of Ti-6Al-4V." International Journal of Fatigue 25, no. 9-11 (September 2003): 1109–16. http://dx.doi.org/10.1016/s0142-1123(03)00116-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Tian, Ren Hui, Qiao Lin Ouyang, and Qing Yuan Wang. "Effect of Plasma Nitriding on Ultra-High Cycle Fatigue Behaviors of Ti-6Al-4V." Advanced Materials Research 295-297 (July 2011): 2386–89. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.2386.

Full text

Abstract:

In order to investigate the effect of plasma nitriding treatment on fatigue behavior of titanium alloys, very high cycle fatigue tests were carried out for Ti-6Al-4V alloy using an ultrasonic fatigue machine under load control conditions for stress ratios of R=-1 at frequency of ƒ=20KHz. Experiment results showed that plasma nitriding treatment played the principal role in the internal fatigue crack initiation. More importantly, plasma nitriding treatment had a detrimental effect on fatigue properties of the investigated Ti-6Al-4V alloy, and the fatigue strength of material after plasma nitriding treatment appeared to be significantly reduced about 17% over the untreated material.

APA, Harvard, Vancouver, ISO, and other styles

12

Singla, Anil Kumar, Jagtar Singh, Vishal S. Sharma, Munish Kumar Gupta, Qinghua Song, Dariusz Rozumek, and Grzegorz M. Krolczyk. "Impact of Cryogenic Treatment on HCF and FCP Performance of β-Solution Treated Ti-6Al-4V ELI Biomaterial." Materials 13, no. 3 (January 21, 2020): 500. http://dx.doi.org/10.3390/ma13030500.

Full text

Abstract:

The poor fatigue strength of Ti-6Al-4V ELI is a main cause of failure in structural implants. In this work, Ti-6Al-4V ELI was subjected to β-solution treatment to obtain martensite microstructure and further subjected to −196 °C for 24 h. Significant improvement in high cycle fatigue performance of martensite Ti-6Al-4V ELI was observed on exposure to cryogenic cycle. Resistance to fatigue crack growth of alloy was augmented in martensite structure as compared with mill annealed sample and the same was retained even after exposure to cryogenic treatment. The variation observed in fatigue behavior due to cryogenic treatment was correlated with fractography and metallurgical investigations. Improvement in high cycle fatigue performance can be attributed to a combined effect of a decrease in the size of prior β grain, formation of massive α patch and its subsequent transformation into ultra-fine α and β during the soaking period at −196 °C.

APA, Harvard, Vancouver, ISO, and other styles

13

Davey, W., M. R. Bache, H. M. Davies, M. Thomas, and I. Bermant-Parr. "Fatigue Performance of the Novel Titanium Alloy TIMETAL®407." MATEC Web of Conferences 321 (2020): 11044. http://dx.doi.org/10.1051/matecconf/202032111044.

Full text

Abstract:

TIMETAL®407 (Ti-407) is a novel titanium alloy formulated as a medium strength, highly ductile alloy offering a range of manufacturing cost reduction opportunities. It can be used as a direct replacement for Ti-6Al-4V or Ti-3Al-2.5V alloys, particularly in applications where energy absorption during fracture or HCF endurance are the key design criteria. The effect of thermo-mechanical processing on microstructure has been characterised and the room temperature high cycle, low cycle and dwell cycle fatigue properties of Ti-407 containing 30-40% primary alpha volume fraction are presented and discussed. These results are compared with data generated from Ti-6Al-4V processed to provide a similar but non-standard microstructure and demonstrate that Ti-407 shows superior HCF endurance strength, despite having a significantly lower tensile and yield strength.

APA, Harvard, Vancouver, ISO, and other styles

14

Htoo, Aye Thant, Yukio Miyashita, Yuichi Otsuka, Yoshiharu Mutoh, and Shigeo Sakurai. "Kinking Behavior of S-N Curve for Ti6Al4V Alloy Notched Specimen under a Load-Controlled High Cycle Fatigue Test." Materials Science Forum 867 (August 2016): 39–44. http://dx.doi.org/10.4028/www.scientific.net/msf.867.39.

Full text

Abstract:

Notch fatigue behavior of Ti-6Al-4V titanium alloy has been investigated under a load-controlled high cycle fatigue test. The S-N curve was kinked at the critical nominal stress amplitude, where the plastic deformation nucleated at notch root. The plastic zone size at the critical nominal stress amplitude was almost equal to the size of 4 grains of the present Ti-6Al-4V alloy, which were the same findings as in the 2024-T4 alloy used in the previous study. Above the critical nominal stress amplitude, the local stress ratio at notch root decreased with increasing nominal stress amplitude. The critical nominal stress amplitudes normalized by the cyclic yield stress were almost the same for Ti-6Al-4V alloy and the 2024-T4 alloy. The significant decrease of the local stress ratio with increasing nominal stress amplitude was observed in the 2024-T4 alloy with low cyclic yield stress and low cyclic hardening coefficient compared to the Ti-6Al-4V alloy with high cyclic yield stress and high cyclic hardening coefficient.

APA, Harvard, Vancouver, ISO, and other styles

15

Cieśla, M., G. Junak, and A. Marek. "Fatigue Characteristics of Selected Light Metal Alloys." Archives of Metallurgy and Materials 61, no. 1 (March 1, 2016): 271–74. http://dx.doi.org/10.1515/amm-2016-0051.

Full text

Abstract:

The paper addresses results of fatigue testing of light metal alloys used in the automotive as well as aerospace and aviation industries, among others. The material subject to testing comprised hot-worked rods made of the AZ31 alloy, the Ti-6Al-4V two-phase titanium alloy and the 2017A (T451) aluminium alloy. Both low- and high-cycle fatigue tests were conducted at room temperature on the cycle asymmetry ratio of R=-1. The low-cycle fatigue tests were performed using the MTS-810 machine on two levels of total strain, i.e.Δεc= 1.0% and 1.2%. The high-cycle fatigue tests, on the other hand, were performed using a machine from VEB Werkstoffprufmaschinen-Leipzig under conditions of rotary bending. Based on the results thus obtained, one could develop fatigue life characteristics of the materials examined (expressed as the number of cycles until failure of sample Nf) as well as characteristics of cyclic material strain σa=f(N) under the conditions of low-cycle fatigue testing. The Ti-6Al-4V titanium alloy was found to be characterised by the highest value of fatigue life Nf, both in lowand high-cycle tests. The lowest fatigue life, on the other hand, was established for the aluminium alloys examined. Under the high-cycle fatigue tests, the life of the 2017A aluminium and the AZ31 magnesium alloy studied was determined by the value of stress amplitude σa. With the stress exceeding 150 MPa, it was the aluminium alloy which displayed higher fatigue life, whereas the magnesium alloy proved better on lower stress.

APA, Harvard, Vancouver, ISO, and other styles

16

Park, Taewon, Shankar Mall, and Thedore Nicholas. "Effects of Pre-Damage on HCF Behaviors of Ti-6Al-4V Alloy." International Journal of Modern Physics B 17, no. 08n09 (April 10, 2003): 1994–2000. http://dx.doi.org/10.1142/s0217979203020004.

Full text

Abstract:

The effects of pre-damage on the fatigue strength of Ti-6Al-4V were investigated by applying the low cycle fatigue(LCF) as a pre-damage prior to high cycle fatigue(HCF) test. The fatigue strengths were obtained by means of step-loading method. The pre-damage condition was decided as 900MPa, 0.5R, 50,000 cycles through LCF test, and was introduced before step-loading test. The fatigue strength of Ti-6Al-4V alloy derived from step-loading test without pre-damage was about 639MPa. The introduction of pre-damage deteriorates the fatigue strength about 6%. Progressive change in elongation with increasing cycles was observed. The strain accumulated by pre-damage varies the displacement in the next loading step, but afterward this doesn't change the displacement any more. The strain formed by pre-damage is thought to result in earlier failure and lower fatigue strength.

APA, Harvard, Vancouver, ISO, and other styles

17

Wang, Rui Feng, You Tang Li, and Hu Ping An. "Low Cycle Fatigue Behaviors of TI-6AL-4V Alloy Controlled by Strain and Stress." Key Engineering Materials 525-526 (November 2012): 441–44. http://dx.doi.org/10.4028/www.scientific.net/kem.525-526.441.

Full text

Abstract:

The low cycle fatigue behaviors of TI-6AL-4V alloy controlled by strain were investigated by experiment. The fatigue tests were performed at room temperature, and cyclic strain and stress ratio are 0.1 with triangle load wave. The results show that TI-6AL-4V alloy is soften rapidly under the cyclic tensile stresses and it is harden rapidly under the cyclic compressive stresses during the initial-stage of strain controlled fatigue, and the rates of cyclic soften and cyclic harden are decreased with the fatigue progress. The soften rate is related to the cyclic strain but little to the cyclic stress during the overall fatigue progress. The change of cyclic stress is related to the macro friction stresses. The results of experiment show that obvious cyclic creep occurs under the stress controlled low cycle fatigue conditions, and the magnitude of cyclic creep strain is related to the maximum cyclic stress. The softening of tensile friction stresses is the main factor of cyclic creep.

APA, Harvard, Vancouver, ISO, and other styles

18

Hagiwara, Masuo, Tomonori Kitashima, Satoshi Emura, Satoshi Iwasaki, and Mitsuharu Shiwa. "Very High-Cycle Fatigue and High-Cycle Fatigue of Minor Boron-Modified Ti–6Al–4V Alloy." MATERIALS TRANSACTIONS 60, no. 10 (October 1, 2019): 2213–22. http://dx.doi.org/10.2320/matertrans.mt-m2019169.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

20

Shiina, Takahiro, Takashi Nakamura, and Hiroyuki Oguma. "OS11W0355 Effects of high vacuum environment on high cycle fatigue properties of Ti-6Al-4V alloy." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2003.2 (2003): _OS11W0355. http://dx.doi.org/10.1299/jsmeatem.2003.2._os11w0355.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

22

Kumar, Punit, and Upadrasta Ramamurty. "High cycle fatigue in selective laser melted Ti-6Al-4V." Acta Materialia 194 (August 2020): 305–20. http://dx.doi.org/10.1016/j.actamat.2020.05.041.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Yp, Zhang, Dong Cl, Wang Yq, Hou B, Yu C, Fang Wp, and Xu Wh. "High cycle fatigue property of electron beam welded thick section of Ti–6Al–4V plates." Paton Welding Journal 2019, no. 9 (September 28, 2019): 18–22. http://dx.doi.org/10.15407/tpwj2019.09.03.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Namjoshi, S. A., and S. Mall. "Fretting behavior of Ti-6Al-4V under combined high cycle and low cycle fatigue loading." International Journal of Fatigue 23 (2001): 455–61. http://dx.doi.org/10.1016/s0142-1123(01)00143-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Yang, D., and Z. Liu. "Surface integrity generated with peripheral milling and the effect on low-cycle fatigue performance of aeronautic titanium alloy Ti-6Al-4V." Aeronautical Journal 122, no. 1248 (December 13, 2017): 316–32. http://dx.doi.org/10.1017/aer.2017.136.

Full text

Abstract:

ABSTRACTMachining-induced surface integrity has an important effect on reliability and service life of the components used in the aerospace industry where titanium alloy Ti-6Al-4V is widely applied. Characterisation of machining-induced surface integrity and revealing its effect on fatigue life are conducive to structural fatigue life optimisation design. In the present study, surface topography, residual stress, microstructure and micro-hardness were first characterised in peripheral milling of titanium alloy Ti-6Al-4V. Then, low-cycle fatigue performances of machined specimens were investigated on the basis of the tension-tension tests. Finally, the effects of surface integrity factors (stress concentration factor, residual stress and micro-hardness) on fatigue performances were discussed. Results show that stress concentration can reduce the fatigue life while increasing the residual compressive stress, and micro-hardness is beneficial to prolonging the fatigue life, but when the surface material of the specimen is subjected to plastic deformation due to yield, the residual stress on the surface is relaxed, and the effect on the fatigue performance is disappeared. Under the condition of residual stress relaxation, the stress concentration factor is the main factor to determine the low-cycle fatigue life of titanium alloy Ti-6Al-4V. While for the specimens with no residual stress relaxation, micro-hardness was the key factor to affect the fatigue life, followed by residual stress and stress concentration factor, respectively.

APA, Harvard, Vancouver, ISO, and other styles

26

Wang, Rui Feng, You Tang Li, and Hu Ping An. "Low Cycle Fatigue Life Prediction of Ti-6Al-4V Titanium Alloy under Multi-Axial Non Proportional Cyclic Loading." Advanced Materials Research 668 (March 2013): 814–17. http://dx.doi.org/10.4028/www.scientific.net/amr.668.814.

Full text

Abstract:

A series multi-axial tension and torsion low cycle fatigue life experiments of Ti-6Al-4V alloy were conducted on the MTS tension and torsion joint testing machine, in which the torsional strain control and non proportional cyclic loading method under the loading paths of circular, rectangular, square, oval and diamond were successively used. The experimental results are compared and analyzed with the results that calculated by the equivalent strain model, the energy method model and the critical plane method model. The results show that the critical plane method is the accurate prediction model to predict the multi-axial low cycle fatigue life of Ti-6Al-4V alloy.

APA, Harvard, Vancouver, ISO, and other styles

27

Hosseini, Shabnam, and Mohammad Bagher Limooei. "Investigation of Fatigue Behaviour and Notch Sensitivity of Ti-6Al-4V." Applied Mechanics and Materials 80-81 (July 2011): 7–12. http://dx.doi.org/10.4028/www.scientific.net/amm.80-81.7.

Full text

Abstract:

In this research, fatigue behaviour of Ti-6Al-4V alloy was investigated for smooth and notched specimens with stress concentration factor(Kt) 3.6 and 4.1.This investigation was conducted for various diameter bars having different ultimate strength.Rotating bending fatigue test at R= -1 was emploied for this research. Notch sensitivity data was compared with those of steels. The result indicated that the presence of notch in this alloy has a different amount of sensitivity when the notch specimens were subjected to high cycle fatigue (HCF) and low cycle fatigue(LCF) tests.The notch sensitivity of this alloy was shown generally to be much lower than steel alloys with similar ultimate strength values. Therefore,considering the low sensitivity to notch of this alloy, can be recommended for applications with the presence of notch such as biomedical application

APA, Harvard, Vancouver, ISO, and other styles

28

Collins, C. R., F. F. Dear, D. Rugg, and D. Dye. "The Effect of Dissolved Nitrogen on the Fatigue Behavior of Ti-6Al-4V." Metallurgical and Materials Transactions A 52, no. 5 (March 3, 2021): 1596–608. http://dx.doi.org/10.1007/s11661-021-06147-2.

Full text

Abstract:

AbstractThe effect of nitrogen additions on fatigue behavior has been examined in near-equiaxed, rolled Ti-6Al-4V bar. This is the first-time nitrogen content that has been systematically explored with respect to monotonic and cyclic properties in a Ti-6Al-4V alloy base composition. Nitrogen additions were found to increase the $$\beta $$ β -transus temperature and strength, but they decreased ductility, even in microstructures where some $$\beta $$ β phase remained. This carried across into both the low- and high cycle fatigue behavior; even small contents of 240 and 560 ppmwN caused reductions in both low cycle fatigue life and high cycle fatigue strength. In samples containing 240 and 560 ppmwN, a conventional striated fractographic appearance was observed, but a dramatic change to a macroscopically brittle fracture surface was observed at 1800 and 3600 ppmwN, but still with substantial evidence of plasticity at the microscale. Therefore, neither microstructure or fractographic examination, nor EDX-based compositional analysis in the electron microscope are necessarily a reliable indicator of an absence of deleterious nitrogen contamination. This is significant for the investigation of potentially nitrogen-contaminated surface-initiated cracks, either due to service or processing exposures.

APA, Harvard, Vancouver, ISO, and other styles

29

He, Chao, Yong Jie Liu, and Qing Yuan Wang. "Very High Cycle Fatigue Properties of Welded Joints under High Frequency Loading." Advanced Materials Research 647 (January 2013): 817–21. http://dx.doi.org/10.4028/www.scientific.net/amr.647.817.

Full text

Abstract:

Very high cycle fatigue (VHCF) properties of welded joints under ultrasonic fatigue loading have been investigated for titanium alloy (TI-6Al-4V) and bridge steel (Q345). Ultrasonic fatigue tests of base metal and welded joints were carried out in ambient air at room temperature at a stress ratio R=-1. It was observed that the fatigue strength of welded joints reduced by 50-60% as compared to the base metal. The S-N fatigue curves in the range of 107~109 cycles of base metal and welded joints for both materials exhibited the characteristic of continually decreasing type. The fatigue failure still occurred after 107 cycles of loading, and the fatigue limit in traditional does not exist. The fatigue facture mainly located in the weld metal region at low cycle fatigue range, but in the fusion area in HCF and VHCF. Analysis of fracture surfaces analyzed by SEM revealed that the fatigue cracks initiated from welding defects such as pores, cracks and inclusions.

APA, Harvard, Vancouver, ISO, and other styles

30

Uematsu, Yoshihiko, Toshifumi Kakiuchi, Yaodong Han, and Masaki Nakajima. "Proposal of Fatigue Limit Design Curves for Additively Manufactured Ti-6Al-4V in a VHCF Regime Using Specimens with Artificial Defects." Metals 11, no. 6 (June 15, 2021): 964. http://dx.doi.org/10.3390/met11060964.

Full text

Abstract:

Cantilever-type rotating bending fatigue tests were conducted under a very high cycle fatigue regime using conventionally manufactured Ti-6Al-4V specimens having drilled artificial defects with different sizes. The relationship between fatigue limit and defect size was defined as a fatigue limit design curve considering the transition from the fracture-mechanics dominating area to the fatigue-limit dominating area. A conventional Murakami’s equation was applicable as a design curve of additively manufactured Ti-6Al-4V with defects at 107 cycles. However, conventional equation gave un-conservative predictions for the fatigue limit at 108 cycles. Therefore, two kinds of modified Murakami’s equation were proposed as fatigue limit design curves for the very high cycle fatigue regime. Simple parallel shift of Murakami’s equation gave a conservative fatigue limit, whilst better result was obtained by changing the slope of Murakami’s equation. The proposed design curve was valid for the defect sizes ranging from 10 to 500 μm.

APA, Harvard, Vancouver, ISO, and other styles

31

Yp, Zhang, Dong Cl, Wang Yq, Hou B, Yu C, Fang Wp, and Xu Wh. "High cycle fatigue property of electron beam welded thick section of Ti–6Al–4V plates." Avtomatičeskaâ svarka (Kiev) 2019, no. 9 (September 28, 2019): 26–30. http://dx.doi.org/10.15407/as2019.09.03.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Davey, William, Martin Bache, Helen Davies, and Matthew Thomas. "Fatigue Performance of the Novel Titanium Alloy Timetal 407." MATEC Web of Conferences 165 (2018): 04001. http://dx.doi.org/10.1051/matecconf/201816504001.

Full text

Abstract:

Timetal 407 (Ti-407) is a novel titanium alloy formulated as a lower strength, more malleable alloy offering a range of cost reduction opportunities compared with Ti-6-4 (Ti-6Al-4V). An investigation of the room temperature, high cycle and low cycle fatigue properties of Ti-407 is presented. The effect of thermo-mechanical processing on microstructure is characterised and the fatigue properties of a microstructure containing 30-40% primary alpha volume fraction are presented and discussed. The Ti-407 results are compared with data generated from Ti-6-4 processed to provide a similar microstructure, to demonstrate both superior HCF endurance strength and ductility of the former.

APA, Harvard, Vancouver, ISO, and other styles

33

Stinville, J. C., F. Bridier, D. Ponsen, P. Wanjara, and P. Bocher. "High and low cycle fatigue behavior of linear friction welded Ti–6Al–4V." International Journal of Fatigue 70 (January 2015): 278–88. http://dx.doi.org/10.1016/j.ijfatigue.2014.10.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Kikuchi, Shoichi, Stefan Heinz, Dietmar Eifler, Yuta Nakamura, and Akira Ueno. "Evaluation of Very High Cycle Fatigue Properties of Low Temperature Nitrided Ti-6Al-4V Alloy Using Ultrasonic Testing Technology." Key Engineering Materials 664 (September 2015): 118–27. http://dx.doi.org/10.4028/www.scientific.net/kem.664.118.

Full text

Abstract:

Fatigue tests were carried out at the stress ratio R = -1 using a 20 kHz ultrasonic testing facility to investigate the effects of low temperature nitriding on the fatigue properties of Ti-6Al-4V alloy in the very high cycle fatigue (VHCF) regime in detail. The oscillation and fatigue behavior of the nitrided Ti-alloy were characterized by measuring parameters like the ultrasonic generator power, the displacement of the specimens and dissipated energy under ultrasonic cyclic load. Moreover, the surface microstructure of the nitrided Ti-alloy was characterized using a micro-Vickers hardness tester, an optical microscope, scanning electron microscopy (SEM), X-ray diffraction (XRD) and electron backscatter diffraction technique (EBSD) to clarify the fatigue fracture mechanism. The Ti-alloy nitrided at the temperature of 873 K showed duplex S-N properties consisting of the respective fracture modes of the surface fracture and the subsurface fracture. The low temperature nitriding reduced the surface fatigue life of Ti-alloy in comparison to the un-nitrided one due to the formation of a brittle titanium nitride (Ti2N), whereas the subsurface fatigue life in the VHCF regime was increased by the low temperature nitriding. In addition, the fatigue fracture mechanisms of the low temperature nitrided Ti-alloy were discussed from viewpoints of fractography and fracture mechanics.

APA, Harvard, Vancouver, ISO, and other styles

35

Peters, J. O., and R. O. Ritchie. "Foreign-object damage and high-cycle fatigue of Ti–6Al–4V." Materials Science and Engineering: A 319-321 (December 2001): 597–601. http://dx.doi.org/10.1016/s0921-5093(01)00982-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Janeček, M., F. Nový, P. Harcuba, J. Stráský, L. Trško, M. Mhaede, and L. Wagner. "The Very High Cycle Fatigue Behaviour of Ti-6Al-4V Alloy." Acta Physica Polonica A 128, no. 4 (October 2015): 497–503. http://dx.doi.org/10.12693/aphyspola.128.497.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Cao, X. J., M. R. Sriraman, and Qing Yuan Wang. "Fatigue in Ti-6Al-4V at Very High Cycles." Materials Science Forum 561-565 (October 2007): 259–62. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.259.

Full text

Abstract:

The importance of determining and understanding the very high cycle fatigue behaviors of materials has gained strength in recent years. Ti-alloys, in view of their high strength-to-weight ratio, have a range of structural applications. Of these, Ti-6Al-4V, belonging to the alpha-beta type is the most widely used. The present paper deals with investigations on the fatigue behavior of TC4, the Chinese equivalent to Ti-6Al-4V, up to very high cycles. Fatigue testing was carried out on a piezoelectric ultrasonic fatigue machine operating at 20 kHz frequency. Hourglass shaped resonant specimens were tested in ambient air at room temperature under completely reversed loading conditions (R = -1). Failure in the alloy was seen to occur right up to the gigacycle regime, with the fractures being found to initiate from the surface unlike in steels. The fracture surfaces exhibit brittle characteristics containing river patterns and cleavage facets, as well as striations.

APA, Harvard, Vancouver, ISO, and other styles

38

Htoo, Aye Thant, Yukio Miyashita, Yuichi Otsuka, Yoshiharu Mutoh, and Shigeo Sakurai. "Notch fatigue behavior of Ti-6Al-4V alloy in transition region between low and high cycle fatigue." International Journal of Fatigue 95 (February 2017): 194–203. http://dx.doi.org/10.1016/j.ijfatigue.2016.10.024.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Zhao, Ye Man, Hong Chao Kou, Wei Wu, Ying Deng, Bin Tang, and Jin Shan Li. "Prediction of High Cycle Fatigue Property of Ti-6Al-4V Alloy Using Artificial Neural Network." Materials Science Forum 849 (March 2016): 360–67. http://dx.doi.org/10.4028/www.scientific.net/msf.849.360.

Full text

Abstract:

In this paper, the relationship between microstructure, parameters of cyclic loading and high cycle fatigue property of Ti-6Al-4V alloy was established by artificial neural network (ANN) modeling. The back propagation (BP) neural network and radial basis function (RBF) neural network were established by MATLAB. The input parameters of these models were the primary α volume fraction, primary α size, cyclic loading frequency and stress ratio. The output parameter was high cycle fatigue strength. The neural networks were trained with dataset collected from the literature. The prediction results showed that both of the networks have good generalization ability. In addition, the BP neural network with Levenberg-Merquardt (LM) learning algorithm has better fault tolerance and versatility in dealing with high cycle fatigue property, which is able to predict the high cycle fatigue property with a high accuracy.

APA, Harvard, Vancouver, ISO, and other styles

40

Tokaji, K. "High cycle fatigue behaviour of Ti–6Al–4V alloy at elevated temperatures." Scripta Materialia 54, no. 12 (June 2006): 2143–48. http://dx.doi.org/10.1016/j.scriptamat.2006.02.043.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

McEvily, A. J., T. Nakamura, H. Oguma, K. Yamashita, H. Matsunaga, and M. Endo. "On the mechanism of very high cycle fatigue in Ti–6Al–4V." Scripta Materialia 59, no. 11 (December 2008): 1207–9. http://dx.doi.org/10.1016/j.scriptamat.2008.08.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Lanning, David B., Theodore Nicholas, and George K. Haritos. "Effect of plastic prestrain on high cycle fatigue of Ti–6Al–4V." Mechanics of Materials 34, no. 2 (February 2002): 127–34. http://dx.doi.org/10.1016/s0167-6636(01)00105-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Campbell, J. P., and R. O. Ritchie. "Mixed-mode, high-cycle fatigue-crack growth thresholds in Ti–6Al–4V." Engineering Fracture Mechanics 67, no. 3 (October 2000): 209–27. http://dx.doi.org/10.1016/s0013-7944(00)00046-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Campbell, J. P., and R. O. Ritchie. "Mixed-mode, high-cycle fatigue-crack growth thresholds in Ti–6Al–4V." Engineering Fracture Mechanics 67, no. 3 (October 2000): 229–49. http://dx.doi.org/10.1016/s0013-7944(00)00047-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

MITO, Natsuki, and Keiro TOKAJI. "High Cycle Fatigue Behaviour of Ti-6Al-4V Alloy at Elevated Temperatures." Proceedings of Conference of Tokai Branch 2004.53 (2004): 87–88. http://dx.doi.org/10.1299/jsmetokai.2004.53.87.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Günther, J., D. Krewerth, T. Lippmann, S. Leuders, T. Tröster, A. Weidner, H. Biermann, and T. Niendorf. "Fatigue life of additively manufactured Ti–6Al–4V in the very high cycle fatigue regime." International Journal of Fatigue 94 (January 2017): 236–45. http://dx.doi.org/10.1016/j.ijfatigue.2016.05.018.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Simonelli, Marco, Y. Y. Tse, and C. Tuck. "Fracture Mechanisms in High-Cycle Fatigue of Selective Laser Melted Ti-6Al-4V." Key Engineering Materials 627 (September 2014): 125–28. http://dx.doi.org/10.4028/www.scientific.net/kem.627.125.

Full text

Abstract:

Selective laser melting (SLM) is an attractive metal additive manufacturing technique that can create functional finished components. The microstructure that originates from SLM, however, differs in many aspects from that obtained from conventional manufacturing. In addition, the microstructure-mechanical properties relationship is not yet fully understood. In this research, the high-cycle fatigue performance of SLM Ti-6Al-4V was studied. The dominant fracture mechanisms were reported and discussed in relation to the microstructure of the specimens.

APA, Harvard, Vancouver, ISO, and other styles

48

Lu, Kaiju, Li Cheng, and Xuan Chen. "Effects of TiN coating on the high-cycle-fatigue and very-high-cycle-fatigue properties of Ti-6Al-4V alloy." International Journal of Materials Research 110, no. 4 (April 12, 2019): 307–16. http://dx.doi.org/10.3139/146.111754.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

HATANAKA, Kenji, Junji OHGI, and Fumio UENO. "Influence of Heat Treatment on Low-Cycle Fatigue in Ti-6Al-4V Alloy." Journal of the Society of Materials Science, Japan 42, no. 481 (1993): 1153–59. http://dx.doi.org/10.2472/jsms.42.1153.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Wu, Min, Takamoto Itoh, Yuuta Shimizu, Hiroshi Nakamura, and Masahiro Takanashi. "Low cycle fatigue life of Ti–6Al–4V alloy under non-proportional loading." International Journal of Fatigue 44 (November 2012): 14–20. http://dx.doi.org/10.1016/j.ijfatigue.2012.06.006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!