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Journal articles on the topic 'Degree of deformation'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Tarasova, А. А., O. S. Groznova, and N. Yu Chernykh. "Clinical significance of myocardial deformation of a left ventricle in children with hypertrophic cardiomyopathy." Medical alphabet, no. 30 (December 3, 2024): 36–41. https://doi.org/10.33667/2078-5631-2024-30-36-41.

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Purpose: to evaluate the clinical significance of left ventricular myocardial deformation indicators, their relationship with the degree of heart failure and left ventricular hypertrophy in children with hypertrophic cardiomyopathy (HCM). Materials and methods. 61 patients with primary genetically confirmed asymmetric HCM aged 7 to 17 years underwent a comprehensive clinical and echocardiography. Echocardiography determined indicators of left ventricular systolic function: ejection and shortening fractions, global longitudinal, circular and radial myocardial deformations and deformations rates

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2

Zhang, Y. "EBSD analysis of graphitized steel microstructure after compression deformation at room temperature." Izvestiya. Ferrous Metallurgy 64, no. 3 (2021): 230–36. http://dx.doi.org/10.17073/0368-0797-2021-3-230-236.

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The graphitized steel has attracted considerable attention due to its excellent cutability and good properties at cold forming. Compression deformation at room temperature of graphitized steel (0.43 % C) with a ferrite-graphite microstructure was performed on a universal testing machine. Microstructures of deformed samples were studied using the analysis technique of Electron Back-Scattered Diffraction (EBSD). The evolution of microstructure morphology, texture, distribution of Kernel Average Misorintations (KAM) and the Taylor factor in the zone of large deformations of deformed samples with

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3

Kurc-Lisiecka, Agnieszka. "MORPHOLOGICAL DETAILS OF STRAIN-INDUCED MARTENSITE IN COLD-ROLLED Cr – Ni STEEL." International Journal of Modern Manufacturing Technologies 14, no. 3 (2022): 112–23. http://dx.doi.org/10.54684/ijmmt.2022.14.3.112.

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"The investigation presents the evolution of strain-induced martensite during cold rolling of AISI 304 stainless steel at 10% and 50% degree of deformation. The morphologies and characteristics of ’ martensite have been studied using optical-image analysis, scanning and transmission electron microscope. The influence of strain-induced martensite on mechanical properties and hardness of AISI 304 steel have been reported. Plastic deformation during the cold rolling of AISI 304 steel induces a martensitic transformation (γ→α’) in the whole range of applied deformation degree. The equiaxial grain

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4

Wen, Wen-Yu. "Thermodynamic metric of deformed Schwarzschild black holes." International Journal of Modern Physics D 26, no. 10 (2017): 1750106. http://dx.doi.org/10.1142/s0218271817501061.

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Thermodynamic metric usually works only for those black holes with more than one conserved charge, thereby excluding the Schwarzschild black hole. In this paper, however, different versions of thermodynamic metric are computed and compared for the Schwarzschild-like black hole by introducing new degrees of freedom. These new degrees of freedom have two purposes. First, the deformed metric may be treated offshell to the ordinary Schwarzschild black hole, and onshell physics corresponds to the submanifold by gauge fixing of this additional degree of freedom. In particular, the thermal Ricci scal

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5

CHEN, JIANG-XING, JIANG-RONG XU, and HE-PING YING. "RESONANT DRIFT OF SPIRAL WAVES INDUCED BY MECHANICAL DEFORMATION." International Journal of Modern Physics B 24, no. 29 (2010): 5733–41. http://dx.doi.org/10.1142/s0217979210056323.

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The drift of rigidly rotating spiral waves in an excitable medium induced by synchronous and asynchronous mechanical deformation is investigated numerically and analytically. The resonant drift of spiral waves induced by a mechanical deformation with ω = ω0 and ω = 3ω0 is observed. At ω = ω0, synchronous and greatest degree of asynchronous mechanical deformations are specially investigated. For the case ω = 3ω0, synchronous mechanism deformation locks the spiral while decreasing of degree of synchronization increases the drift velocity. We derive an approximate but explicit formula of the spir

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6

BANAGL, MARKUS, and LAURENTIU MAXIM. "DEFORMATION OF SINGULARITIES AND THE HOMOLOGY OF INTERSECTION SPACES." Journal of Topology and Analysis 04, no. 04 (2012): 413–48. http://dx.doi.org/10.1142/s1793525312500185.

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While intersection cohomology is stable under small resolutions, both ordinary and intersection cohomology are unstable under smooth deformation of singularities. For complex projective algebraic hypersurfaces with an isolated singularity, we show that the first author's cohomology of intersection spaces is stable under smooth deformations in all degrees except possibly the middle, and in the middle degree precisely when the monodromy action on the cohomology of the Milnor fiber is trivial. In many situations, the isomorphism is shown to be a ring homomorphism induced by a continuous map. This

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7

Chubenko, V. A., T. P. Yarosh, A. A. Khinotska, I. E. Skidin, and G. V. Gubin. "The influence of deformation degree on efficiency of thin sheet cold rolling." IOP Conference Series: Earth and Environmental Science 1415, no. 1 (2024): 012064. https://doi.org/10.1088/1755-1315/1415/1/012064.

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Abstract The objective of this research is to improve the efficiency of cold rolling of thin steel sheets with a thickness of 1.5 mm by determining efficient deformation degree. Low-carbon steel 20 was used for the research, and reduction patterns under conditions of cold rolling were determined. While maintaining a constant final sheet thickness of 1.5 mm, the deformation degree was observed to vary based on the initial thickness of the semi-finished rolled product. Key parameters, such as the initial temperature and rolling speed, were adjusted at 200°C and 1 m/s, respectively. The strip wid

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8

Li, Ting, Qinghe Song, Guangjun He, et al. "A Method for Detecting the Vacuum Degree of Vacuum Glass Based on Digital Holography." Sensors 23, no. 5 (2023): 2468. http://dx.doi.org/10.3390/s23052468.

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The vacuum degree is the key parameter reflecting the quality and performance of vacuum glass. This investigation proposed a novel method, based on digital holography, to detect the vacuum degree of vacuum glass. The detection system was composed of an optical pressure sensor, a Mach–Zehnder interferometer and software. The results showed that the deformation of monocrystalline silicon film in an optical pressure sensor could respond to the attenuation of the vacuum degree of vacuum glass. Using 239 groups of experimental data, pressure differences were shown to have a good linear relationship

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9

Tadyeyev, Oleksandr. "Mathematical and cartographic modelling of the deformation of the earth's surface in Europe using GNSS data." Scientific Herald of Chernivtsi University. Geography, no. 849 (December 31, 2024): 63–76. https://doi.org/10.31861/geo.2024.849.63-76.

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the article is devoted to a scientific and methodological study of the problem of evaluation and graphically representation of deformations of the earth's surface using GNSS data. The purpose of the study: testing the methodology of mathematical and cartographic modeling of horizontal deformations of the earth's surface in projection onto the geosphere using the example of the territory of Europe with the prospect of expressing the nonlinear deformation patterns. Research result. The results of observations at GNSS stations of the EPN network during 2008–2014 were used as input data for testin

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10

Demmel, Peter, Philipp Tröber, Thomas Kopp, Roland Golle, Wolfram Volk, and Hartmut Hoffmann. "Characterization of the Thermoelectric Behavior of Plastically Deformed Steels by Means of Relative Seebeck Coefficient." Materials Science Forum 755 (April 2013): 1–7. http://dx.doi.org/10.4028/www.scientific.net/msf.755.1.

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The thermoelectric phenomenon can be used for a wide application spectrum. Typically, the Seebeck effect of metallic materials is used for temperature measurement in common thermocouples. However, there is also a high potential for adapting the effect in nondestructive testing due to a high sensitivity of the thermoelectric properties to a variety of material characteristics.Different studies point out an influence of plastic deformations on the thermoelectric behavior of metals, but a detailed and quantitative analysis and description is not provided yet. There is an increasing interest in de

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11

Guo, Qing Miao, Zhen Lei Tang, Guo Liang Xie, Jie Hu, and De Fu Li. "Research on Microstructure and Properties of Pure Copper Tube during Rolling Process." Advanced Materials Research 915-916 (April 2014): 632–37. http://dx.doi.org/10.4028/www.scientific.net/amr.915-916.632.

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The pure copper tube with strong axial orientation columnar grain and equiaxed grain respectively were rolled using a three-roller precision tube mill. Optical microscope, hardness testing machine and universal testing machine were used to investigate the microstructure and mechanical properties of the pure copper tube rolled with different deformation degrees. The results show that the pure copper tube with two kinds of microstructure can be directly rolled from the dimension of Φ68.5mm×57.9mm to Φ34.7×30.4mm by 8 passes with accumulated deformation degree nearly 80% and without intermediate

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12

Yang, You, Hong Shuai Li, and Yu Xin Huang. "Effect of Cold Rolling on the Microstructure and Mechanical Behaviors of High-Nitrogen and Low-Nickel Alloy." Key Engineering Materials 904 (November 22, 2021): 143–47. http://dx.doi.org/10.4028/www.scientific.net/kem.904.143.

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The effects of different cold rolling deformations on the microstructure and mechanical properties of high nitrogen and low nickel alloys were investigated. The microstructure of high nitrogen alloys with different rolling deformations were characterized by EBSD and TEM. The tensile mechanical properties of the high nitrogen alloys at room temperature were tested. The results showed that the microstructure of the cold rolled high nitrogen alloy with deformation of 0% to 70% shows a twinning process. The twin thickness of the high nitrogen alloy without deformation is micron degree. When the ro

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13

Sun, Dongyun, Jianguang Li, Xiaohong Hao, et al. "Effect of Cold Rolling and Cryogenic Treatment on the Microstructure and Mechanical Properties of Fe–32Ni Alloy." Metals 14, no. 2 (2024): 174. http://dx.doi.org/10.3390/met14020174.

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In this work, the effects of cold rolling (CR) and cold rolling–cryogenic treatment (CR–CT) on the microstructure and mechanical properties of Fe–32Ni alloy were studied via optical microscopy methods, OM, SEM, XRD, TEM, tensile strength and hardness tester, and tensile testing. The results reveal the grain refinement in the alloy after rolling deformation. When the deformation is higher than 85%, the polygonal austenite grains become layered, and a small amount of martensite forms. Because of the inhibitory effect of cold-rolling deformation before cryogenic treatment on martensitic transform

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14

Hurski, L. I. "Deformed and stressed states of materials at the rolling of three layer stacks, dislocation structure of inner layer – nickel foil." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 66, no. 3 (2021): 270–79. http://dx.doi.org/10.29235/1561-8358-2021-66-3-270-279.

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The deformed and stressed states during rolling of a three-layer stack from various materials with a nickel foil inner layer are considered. The technique of determining the density of dislocations is described. The data about the inﬂuence of deformation conditions on the distribution and density of dislocations during rolling of nickel foil in various stacks are presented, including the registration or determination of the dislocation structure of nickel foil before deformation and at various degrees of deformation. It is shown that the mechanical scheme of deformation of the inner layer of t

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15

Rech, Didier, Anastasiia N. Potasheva, and Yakov V. Kazakov. "Regulating the Deformation Properties of Paper by Varying the Degree of Its Anisotropy." Lesnoy Zhurnal (Forestry Journal), no. 5 (October 15, 2021): 174–84. http://dx.doi.org/10.37482/0536-1036-2021-5-174-184.

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Mechanical properties are crucial in assessing the paper quality. Deformation and strength properties of paper are determined by the strength and stiffness of the interfiber and intermolecular hydrogen bonds. The contribution ratio of interfiber and intermolecular hydrogen bonds to the strength of paper can be changed by adjusting the degree of its anisotropy. The article presents the results on a study of the deformation properties of laboratory anisotropic paper samples from kraft bleached softwood pulp with a beating degree of 30 °SR. The samples had basic weight of 90 g/m2 and the degree o

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16

He, Zhanshu, Zhenpeng Shi, Dongchen Qin, et al. "Study on Comprehensive Performance of Four-Point Contact Ball Slewing Bearings Based on a Bearing Support Bolt-Integrated Model." Machines 12, no. 11 (2024): 814. http://dx.doi.org/10.3390/machines12110814.

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To investigate four-point contact ball slewing bearings, a bearing support bolt-integrated model was created with HyperMesh and ANSYS software, and its accuracy was theoretically confirmed. This study examines how the rolling element number Z, contact angle α, bolt number N, bolt pre-tightening force coefficient P, and radial load-overturning moment angle θ affect the comprehensive performance of four-point contact ball slewing bearings and connecting bolts. The study found that increasing Z, α, N, P, and θ reduces overall bearing, ring, rolling element, and contact load deformations. The maxi

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17

Dudarev, Evgenii, Galina Bakach, Aleksandr I. Potekaev, Yurii Kolobov, Oleg Kashin, and Mickle Zhorovkov. "Influence of Interstitial Impurities on Deformational Behavior and Fracture Mechanism of Submicrocrystalline Titanium at Room and Elevated Temperatures." Advanced Materials Research 1013 (October 2014): 138–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1013.138.

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General trends and other aspects of the deformational behavior, localization of plastic deformation on the macroscale level, and fracture of submicrocrystalline and coarse-grained titanium with different interstitial impurity levels are established. It is shown that for the submicrocrystalline structure as well as for the coarse-grained structure, strengthening by interstitial impurities decreases with increase of the deformation temperature. Experimental data are presented which indicate that in the development of grain-boundary sliding in submicrocrystalline titanium with simultaneous onset

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18

Zhang, Junhui, Anshun Zhang, Jue Li, Feng Li, and Junhui Peng. "Gray Correlation Analysis and Prediction on Permanent Deformation of Subgrade Filled with Construction and Demolition Materials." Materials 12, no. 18 (2019): 3035. http://dx.doi.org/10.3390/ma12183035.

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Construction and demolition (C&D) materials obtained from the demolition of buildings are proven to be qualified and sustainable subgrade fillers. The permanent deformation response of subgrade C&D materials under different moisture contents, degrees of compaction, deviator stresses, and confining pressures was revealed by carrying out dynamic triaxial texts. Then, using a four-factor and three-level orthogonal test and by calculating the Gray correlation degree of each factor, the influence degree of each factor on the permanent deformation was determined. The results indicated that t

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19

Meng, Zhenghua, Xiangyang Jia, Wei Feng, Wuhao Zhuang, and Min Wu. "Investigation on Interfacial Bonding Characteristics of Steel/Aluminum Bi-Metal Gears by Hot Forging Processing." Metals 12, no. 8 (2022): 1244. http://dx.doi.org/10.3390/met12081244.

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In this study, steel/aluminum bimetal gears were manufactured under different deformation degrees by using hot forging processing. Optical microscope (OM), scanning electron microscopy (SEM) and energy disperse spectroscopy (EDS) were used to observe morphologies and the element composition of the interface region of the bimetal gears with different deformation degrees. Results show that the interface region between steel and aluminum is of mechanical bonding characteristics when the deformation degree is 50% and 70%, and the steel–aluminum interface joining zone is of the metallurgical bondin

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20

Chen, Tongjun, Guodong Ma, Xin Wang, and Ruofei Cui. "Deformation Degree Estimate for Coal Seam using Well Logs as Input: A Case Study." Journal of Environmental and Engineering Geophysics 23, no. 1 (2018): 89–101. http://dx.doi.org/10.2113/jeeg23.1.89.

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The presence of tectonic deformed coal (TDC) is a prerequisite for coal-and-gas outburst. With a higher degree of TDC deformation, there is a greater possibility of coal-and-gas outbursts. The estimate of deformation degree for coal seam is critically important for mining safety. In this study, we focus on the No. 8 coal seam of Luling coalmine to identify and estimate its deformation degree using well logs, multiscale wavelet analysis, cluster analysis, and ternary diagrams. Since the original well logs contain noise, we first perform denoising with multi-scale wavelet analysis and produce th

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21

TSUTSKIRIDZE, V. N., and V. F. PETROVA. "THE EFFECT OF THE DEGREE OF DEFORMATION ON THE MICROSTRUCTURE OF THE AUSTENITIC STAINLESS STEEL PIPE BILLET." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 10(281) (October 2023): 73–77. http://dx.doi.org/10.35211/1990-5297-2023-10-281-73-77.

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The influence of the degree of deformation on the microstructure of a tube billet made of 08X18N10T steel obtained by forging and rolling (degrees of deformation of 45 and 13%, respectively) is investigated. It is established that hot deformation causes grinding of austenite grains and leads to the release of a larger amount of the carbide phase along the grain boundaries.

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22

Kovchik, A., K. Babkin, and A. Vildanov. "Research of deformation compensation method in laser metal deposition process of 316L stainless steel product." Journal of Physics: Conference Series 2077, no. 1 (2021): 012010. http://dx.doi.org/10.1088/1742-6596/2077/1/012010.

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Abstract It is exists the problem of big product manufacturing with minimal dimensions tolerances. To solve this problem it is necessary to compensate the deformations influence. In researching of method, it became clear that deformation degree has changed and depended on size and form of part. However, the amount of deformation degree to dimension of part is still independent of size. This fact has observed after production of axis-symmetrical parts. The simple axis-symmetrical part was built up. The dimensions of part was measured, and the compensation coefficient was calculated. The dimensi

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23

Goanta, V., and C. I. Moraras. "Vickers Hardness Variation on the Part and Welding Cord Subjected to Plastic Deformation." IOP Conference Series: Materials Science and Engineering 1262, no. 1 (2022): 012050. http://dx.doi.org/10.1088/1757-899x/1262/1/012050.

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By performing Vickers identifications in the area of the weld bead and the areas adjacent to it, the degree of plastic deformation can be assessed, highlighting the different hardness in the case of welding and the base material. During this work, welded specimens were made in the central area with a double V-shaped cord. One of the specimens was loading until breaking, noting that the rupture occurred in an area further away from the welding area. Another 13 specimens were required at varying degrees of deformation. Stresses above the elastic limit create differences in the plastic deformatio

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24

Dragobetskii, Volodymyr, Mykhaylo Zagirnyak, Olena Naumova, Sergii Shlyk, and Aleksandr Shapoval. "Method of Determination of Technological Durabilityof Plastically Deformed Sheet Parts of Vehicles." International Journal of Engineering & Technology 7, no. 4.3 (2018): 92. http://dx.doi.org/10.14419/ijet.v7i4.3.19558.

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The purpose of the article is to develop an apparatus providing maximum or predicted durability of parts treated during their manufacture by plastic deformation. In these terms, the parameters of the technological process should provide the maximum or expected increase of the endurance limit in comparison with the initial parts values before the strengthening by the surface plastic deformation or after plastic forming. The article describes the influence of the degree of preliminary deformation on the kinetics of fatigue failure of metals and alloys. Experimental data of the ultimate deformati

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25

Belyaeva, A. I., P. A. Khaimovich, A. A. Galuza, I. V. Kolenov, and A. A. Savchenko. "Effect of low-temperature quasihydroextrusion on the structure and physical properties of CuCrZr alloy." Low Temperature Physics 49, no. 2 (2023): 238–47. http://dx.doi.org/10.1063/10.0016851.

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The work is devoted to the study of changes in the structural and physical properties of the precipitation-hardened CuCrZr alloy under the influence of low-temperature (77 K) quasihydroextrusion with various degrees of deformation at liquid nitrogen temperature with subsequent aging. Prior to quasihydroextrusion, commercial alloy samples were annealed and quenched from the premelting temperature to obtain a supersaturated solid solution of alloying elements in the copper matrix. After quasihydroextrusion, the microstructure, lattice constant, pole densities, tensile strength and yield strength

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26

Zhao, Xiao Dong, Jian Sheng Liu, Hui Qin Chen, Xing Wang Duan, and Wen Wu He. "Study of Static Recrystallization Microstructure Evolution of 304 Stainless Steel." Applied Mechanics and Materials 152-154 (January 2012): 672–77. http://dx.doi.org/10.4028/www.scientific.net/amm.152-154.672.

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The effect of various deformation degree and temperature on static recrystallization of 304 stainless steel during two-passes hot compression deformation with the strain rate of 0.1s-1 was investigated by use of Gleeble-1500D thermo-mechanical simulation. It is indicated that deformation degree is the most obvious factor to static recrystallization. Besides, the grain sizes after deformation were also measured by metallographic method. The results show that the grain sizes decreased dramatically with the conditions of deformation temperature (1050°C), holding time (30s) and total deformation d

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27

VERBOVOY, A. F., and I. D. KUChINA. "REZUL'TATY RENTGENOMORFOMETRII POZVONOChNIKA U bol'nykh sakharnym diabetom2 tipa." Osteoporosis and Bone Diseases 11, no. 1 (2008): 14. http://dx.doi.org/10.14341/osteo2008114-14.

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In this study we analyzed degree, character, spreading and location of vertebral deformation in lateral radiograph of the thoracic and lumbar spine (by method of Felsenberg).We analyzed radiographs 55 patients with diabetes mellitus (25 men and 30 women). Index Saville was also estimated. Deformation of anterior vertebral areas prevailed over deformations of vertebral bodies in this kind of patients. The conclusion is that diabetes mellitus doesn't go along with frequent development of vertebral osteoporosis.

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28

Jin, Xiao Long. "Internal Friction Study of the Bake-Hardening Properties on Low Carbon Steel Influenced by the Degree of Pre-Deformation." Key Engineering Materials 846 (June 2020): 128–32. http://dx.doi.org/10.4028/www.scientific.net/kem.846.128.

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This paper selected cold-rolled low carbon steel as the object of experimentation to better understand that the annealed sample was baked in different degree of pre-deformation span to measure its baking hardening property. The main results of the experiments are as follows: The sample was set in different pre-deformation. Firstly, the baking temperature was set as 170°C and the time span was 20 minutes. The results released that when the degree of pre-deformation was set between 2% and 5%, the BH value increased with the increasing degree of pre-deformation. Secondly, the degree of pre-deform

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29

Yi, Sang Bong, Tomasz Ludian, and Lothar Wagner. "Investigation of Deformation Gradients in Surface Zone of Mechanically Surface Treated CuZn30." Materials Science Forum 561-565 (October 2007): 2229–32. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.2229.

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The deformation degrees in near-surface zones and related microstructural changes in CuZn30 were determined after shot peening and ball-burnishing. The induced depths of plastic deformation increase with Almen intensity and rolling pressure in shot peening and ball-burnishing, respectively. As the ball size in burnishing increases, the depth of plastic deformation also increases. The local degrees of cold work within the affected depths were estimated by comparing micro-hardness values, penetration depths of induced slip bands as well as X-ray diffraction peak widths with those measured in bla

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Tadjiev, Mirhotam. "EXPRESSION OF NEUROLOGICAL SYMPTOMATICS IN PATIENTS DEPENDING ON THE DEGREE OF SPINE DEFORMATION." International Journal of Psychosocial Rehabilitation 24, no. 02 (2020): 279–86. http://dx.doi.org/10.37200/ijpr/v24i2/pr200332.

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Yashmetov, Evgeniy G., and Lev A. Kazakovtsev. "Search method for optimal interpolation of thermomechanical coefficients for conventional and low alloy steels." ITM Web of Conferences 59 (2024): 01015. http://dx.doi.org/10.1051/itmconf/20245901015.

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One of the most important factors influencing the behaviour of a metal when subjected to temperature and pressure is the material's ability to resist deformation. So-called thermomechanical coefficients are widely used for mathematical description of this property. These are the ones that determine the direct effect on deformation resistance. There are temperature coefficient (Kt) deformation degree coefficient (Kɛ) and deformation rate coefficient (Ku) describing the influence of temperature, degree of deformation and deformation rate respectively. The situation becomes complicated because th

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32

Kosmatskiy, Yaroslav, Nikolai Fokin, Kseniya Yakovleva, Vladislav Nikolenko, Boris Barichko, and Sergei Zakharov. "Stress-Strain Behavior – Deformation Degree Relationship Investigation of Alloy CrNi60WTi." Tecnica Italiana-Italian Journal of Engineering Science 65, no. 1 (2021): 105–7. http://dx.doi.org/10.18280/ti-ijes.650115.

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The article presents the results of a research of the dependence of the mechanical properties of the CrNi60WTi alloy on the degree of cold deformation. As part of the study, five samples were taken from a pipe with an outer diameter of 89.0 mm and a wall thickness of 11.0 mm. The samples were cold-deformed to varying degrees and static tensile tests were performed on an SSI MTSInsight tensile testing machine. Based on the test results, the dependences of the mechanical properties on the degree of cold deformation were calculated.

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Liu, Zhi Xue, and Ju Qiang Cheng. "Effect of Tempering Temperature on Microstructure and Properties of Cold Deformed Low Carbon Bainitic Steel." Advanced Materials Research 602-604 (December 2012): 305–8. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.305.

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In order to research the cold deformation work hardening characteristic of new type low carbon bainitic steel, this article studies the effect of different degrees of cold deformation (elongation and compression) and different tempering temperatures on microstructure and mechanical properties of 15SiMn2Mo low carbon beinaitic steel. The results showed that with the tempering temperature increasing after 10% pre-tension deformation, the tensile strength and yield strength of the test material increased first and then decreased, and reached its peak value at 300°C, roughly the same as the streng

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34

Tian, Yu, Zhunli Tan, Ji Li, Bo Gao, Min Zhang, and Bingzhe Bai. "Low Temperature Deformation Induced Microstructure Refinement and Consequent Ultrahigh Toughness of a 20Mn2SiCrNi Bainitic Steel." Metals 10, no. 1 (2019): 19. http://dx.doi.org/10.3390/met10010019.

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In this paper, we have studied the influence of deformation on the microstructure and mechanical properties of 20Mn2SiCrNi bainitic high strength steel processed through a hot rolling route. Simulation of different temperatures and degrees of deformation was carried out via Gleeble-1500. The study suggested that grain size is refined when the deformation is carried out at lower temperature (> Ac3). When the degree of deformation was increased from 20% to 60%, grain size and microstructure were both refined and the size of retained austenite was reduced. The tensile strength increased from 1

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35

Pokorný, Peter, Rudolf Zaujec, Vladimír Šimna, and Tomáš Vopát. "Deformation and FEM Analysis of the Chip Root in Face Milling Process." Solid State Phenomena 261 (August 2017): 370–77. http://dx.doi.org/10.4028/www.scientific.net/ssp.261.370.

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This paper was focused on analysis of deformation process in the chip root after milling of material C45. The aim of research was to evaluate the degree of deformation by using the method of oriented test lines. Experimental value of degree of deformation was compared to achieve in computer simulation of milling process in Deform software. The results from the chip root indicates of little differences between simulations and experimental obtained value of degree of deformation.

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36

Towarek, Aleksandra, Wojciech Jurczak, Joanna Zdunek, Mariusz Kulczyk, and Jarosław Mizera. "Influence of Hydrostatic Extrusion on the Mechanical Properties of the Model Al-Mg Alloys." Journal of Materials Engineering and Performance 30, no. 5 (2021): 3502–9. http://dx.doi.org/10.1007/s11665-021-05628-0.

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AbstractTwo model aluminium-magnesium alloys, containing 3 and 7.5 wt.% of Mg, were subjected to plastic deformation by means of hydrostatic extrusion (HE). Two degrees of deformation were imposed by two subsequent reductions of the diameter. Microstructural analysis and tensile tests of the materials in the initial state and after deformation were performed. For both materials, HE extrusion resulted in the deformation of the microstructure—formation of the un-equilibrium grain boundaries and partition of the grains. What is more, HE resulted in a significant increase of tensile strength and d

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Fritsche, Mathias, R. Dietrich, A. Rülke, M. Rothacher, and P. Steigenberger. "Low-degree earth deformation from reprocessed GPS observations." GPS Solutions 14, no. 2 (2009): 165–75. http://dx.doi.org/10.1007/s10291-009-0130-7.

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Konovalova, N. V., I. M. Abdyukhanov, A. S. Tsapleva, et al. "Analysis of Nb3Sn structural and electrophysical superconductor characteristics under simulated deformation." Superconductivity: Fundamental and Applied Research 6, no. 1 (2025): 46–61. https://doi.org/10.62539/2949-5644-2025-6-1-46-61.

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The creation of Future Circular Collider (FCC) dipole magnet with 16 T working magnetic field will require the development of superconductors with a high critical current density with subsequent manufacturing of the cable without significant deterioration of their electrophysical properties. The analysis of electrophysical properties and quantitative microscopy of the developed Nb3Sn strands manufactured at JSC VNIINM are conducted. To simulate cable deformation the effect of uniaxial rolling with different degrees of strand deformation on its microstructure and properties was estimated. Resul

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Kiss, Imre, and Vasile Alexa. "Study on the Deformation behaviour of Non–Hardenable Ferritic Stainless Steel (grade X6Cr17) by Hot Torsion Tests." Tehnički glasnik 14, no. 2 (2020): 239–44. http://dx.doi.org/10.31803/tg-20200313103914.

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The knowledge about the characteristics of deformability (deformation resistance and plasticity) has for the technologist, as well as for the designer and researcher, a great practical significance, because they are important elements in establishing a correct technological process. The change of deformation conditions existing in the industrial process, such as the temperature and rate of deformation, are difficult to consider for correcting the deformability determined by testing. The chemical composition of the material influences the plasticity and its deformation resistance both by the na

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Dimova, Desislava, Boyan Dochev, and Yavor Boychev. "OPTIMIZATION OF A TECHNOLOGICAL PROCESS FOR HEAT TREATMENT OF CU99.9 WITH DIFFERENT DEGREES OF PLASTIC DEFORMATION." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 22, 2024): 43–47. http://dx.doi.org/10.17770/etr2024vol3.8138.

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Different degrees of plastic deformation of Cu99.9 have been achieved by using different technological forming processes. Recrystallization annealing was carried out at different time-temperature regimes. The influence of the degree of plastic deformation and the recrystallization annealing conditions on the structure of the studied material (Cu99.9) is discussed. The technological process of heat treatment is optimized.

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Kyrytsya, I. Iu, O. V. Petrov, I. V. Vishtak, and S. I. Sukhorukov. "Determination of Limiting Deformations at Testing Cylindrical Samples for Tension." Problems of Tribology 29, no. 1/111 (2024): 6–15. http://dx.doi.org/10.31891/2079-1372-2024-111-1-6-15.

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This paper proposes a method for calculating limiting deformations under conditions of localized deformation during tensile testing. The method for calculating limiting deformations was used to construct plasticity diagrams under conditions of strain localization under uniaxial tension. The plasticity diagram is one of the material functions that forms the technological map of the material. The plasticity diagram displays the properties of a material depending on the degree of deformation and the stress state scheme. According to the studies carried out in this work, it was establi

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Wang, Tao, Hong Zhen Guo, Ze Kun Yao, Zhang Long Zhao, Shu Hong Fu, and Yong Zhang. "Microstructural Evolutions of a High Temperature Titanium Alloy Processed by Thermal Mechanical Treatments." Materials Science Forum 747-748 (February 2013): 860–65. http://dx.doi.org/10.4028/www.scientific.net/msf.747-748.860.

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TG6 alloy is a new titanium alloy which has been designed to reach the service temperature of 600°C. The microstructural evolutions of TG6 alloy under different thermal mechanical treatments were studied. It was found that lamellar microstructures with basketweave α lamella are obtained for TG6 alloy forged in β field. The evolution mechanism is transformed from dynamic recrystallization to dynamic recovery and the thickness of α lamella increases with increasing forging temperature. The aspect ratio of α lamella decreases firstly and then increases with increasing deformation degree. Grain bo

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Vershina, G. A., and L. E. Reut. "Influence of Elastic Core on Size of Ring Product under Bending of Fluoroplastic Band." Science & Technique 18, no. 1 (2019): 21–31. http://dx.doi.org/10.21122/2227-1031-2019-18-1-21-31.

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The paper is devoted to study of a possibility to manufacture fluoroplastic products while using method of cold deformation of pressed blanks and research of peculiar features in mechanical behavior of fluoroplastic which are revealed during deformation that affects quality and accuracy of the manufactured parts. Manufacturing technique of fluoroplastic sealing rings which are obtained while using method of coiling a band blank on a cylindrical mandrel with further endurance in a wound state and subsequent cutting of a spiral on rings has been considered in the paper. An important stage in the

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Dong, Ruifeng, Jian Li, Zishuai Chen, Wei Zhang, and Xing Zhou. "Effect of Deformation Degree on Microstructure and Properties of Ni-Based Alloy Forgings." Metals 14, no. 3 (2024): 340. http://dx.doi.org/10.3390/met14030340.

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The primary objective of this paper is to investigate the influence of deformation degree on the microstructure and properties of a Ni-based superalloy. An upsetting experiment was conducted using a free-forging hammer to achieve a deformation degree ranging from 60% to 80%. The impact of the forging deformation degree on the hardness and high-temperature erosion performance was evaluated using the Rockwell hardness tester (HRC) and high-temperature erosion tester, respectively. The experimental results indicate that as the deformation degree increased, the hardness of the forged material prog

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Angelescu, Mariana Lucia, Elisabeta Mirela Cojocaru, Nicolae Șerban, and Vasile Dănuț Cojocaru. "Evaluation of Hot Deformation Behaviour of UNS S32750 Super Duplex Stainless Steel (SDSS) Alloy." Metals 10, no. 5 (2020): 673. http://dx.doi.org/10.3390/met10050673.

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The super-duplex stainless steel UNS S32750 consists of two main phases, austenite and ferrite, which differ not only by their morphology, physical, and mechanical properties, but also by their deformation behaviour. A heterogenous deformation can be obtained during thermomechanical processing, generating internal stresses and sometimes fissures or cracks on sample lateral surfaces, due to ferrite’s phase lower potential of plastic deformation accommodation in comparison with austenite phase. The research objective is to determine the optimum range of the applied deformation degree, during hot

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Cao, Mengtao, and Shunde Yin. "Study on the Tri-axial Time-Dependent Deformation and Constitutive Model of Glauberite Salt Rock under the Coupled Effects of Compression and Dissolution." Energies 13, no. 7 (2020): 1797. http://dx.doi.org/10.3390/en13071797.

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Solution mining for glauberite salt rock is a long-term process that takes several years to several decades. Therefore, deposit deformations and subsidence of ground surfaces are time-dependent deformation problems that should consider the effect of water dissolution. In order to investigate the time-dependent deformation characteristics of glauberite salt rock, tri-axial time-dependent deformation tests were conducted under the condition of 4 MPa confining pressure and 5 MPa axial pressure with infiltration pressures of 3, 2, 1, and 0 MPa, respectively, and the micro-CT scan system was used t

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Vakulenko, Ihor, Serhii Oleksandrovich Plitchenko, and Ahmet Fatih Yılmaz. "Influence Degree and Scheme of Hot Reduction on Properties of the Carbon Steel." İmalat Teknolojileri ve Uygulamaları 6, no. 1 (2025): 150–56. https://doi.org/10.52795/mateca.1634663.

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This study examines the impact of hot plastic deformation at 1250°C on austenite grain refinement and mechanical properties in carbon steel for railway wheels. The deformation strategies—single-step versus two-step compression with equivalent total strain—were compared to assess their effects on austenitic microstructure and material performance. Austenite grain size was quantified via light microscopy and quantitative structural analysis, while mechanical properties were evaluated using a universal tensile testing machine, following the ASTM E8 standard, at room temperature. (strain rate: 10⁻

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Koralnik, M., B. Adamczyk-Cieślak, M. Kulczyk, and J. Mizera. "The effect of deformation degree on the microstructure of the 6060 aluminium alloy." Archives of Materials Science and Engineering 2, no. 85 (2017): 80–85. http://dx.doi.org/10.5604/01.3001.0010.3429.

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Purpose: All results obtained in the present study allowed to analyse the changes in the microstructure and texture of the commercial 6060 aluminium alloy, after deformation process by severe plastic deformation. There were compare two deformation degree samples received by cumulative hydrostatic extrusion. Design/methodology/approach: The samples of the 6060 alloy were subjected to a onepass and three-passes extrusion process and next the age hardening. The microstructure changes were investigated by using transmission and scanning electron microscopy. To study the texture evolution the X-ray

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Feng, Ying-ying, Huan Yu, Zong-an Luo, R. D. K. Misra, and Guang-ming Xie. "The Impact of Process Parameters on Microstructure and Mechanical Properties of Stainless Steel/Carbon Steel Clad Rebar." Materials 12, no. 18 (2019): 2868. http://dx.doi.org/10.3390/ma12182868.

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In this study, a 304/20MnSi stainless-steel clad rebar was prepared by single-pass compression process using the MMS-200 Thermal Mechanical Simulator. The impact of different degrees of deformation and deformation temperature on microstructure evolution and the mechanical properties of stainless steel clad rebars were investigated. The study indicated that with the increase of the degree of deformation, the content of pearlite in a carbon steel matrix was increased, and the grains refined. The metallurgical bonding of the bonded interface was formed under high temperature and high extrusion fo

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Shrestha, Pawan Kumar, and Krishna Kanta Panthi. "Estimating Tunnel Strain in Weak and Schistose Rock Mass under a State of in-situ Stress Anisotropy." Hydro Nepal: Journal of Water, Energy and Environment 16 (February 28, 2015): 7–13. http://dx.doi.org/10.3126/hn.v16i0.12212.

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Tunnels excavated in weak and schistose rock mass below high overburden (rock cover) are prone to instability in the form of tunnel deformation. The deformation in the tunnel takes place to such an extent that it is irreversible and of significant magnitude, which is often known as tunnel squeezing. In order to limit such plastic deformation in tunnels, it is desirable that the response of the rock mass to induced stresses is known so that requirement of rock support can be estimated. Contrary to the assumption of uniform in-situ stresses made in analytical solutions for elasto-plastic analyse

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