Results 251 to 260 of about 138,962 (303)

Hot Deformation Behavior of Hot-Extruded AA7175 Through Hot Torsion Tests

Journal of Nanoscience and Nanotechnology, 2018
The hot deformation behavior of hot-extruded AA7175 was investigated with flow curves and processing maps through hot torsion tests. The flow curves and the deformed microstructures revealed that dynamic recrystallization (DRX) occurred in the hot-extruded AA7175 during hot working. The failure strain was highest at medium temperature.
Se-Yeon, Lee, Taek-Kyun, Jung, Hyeon-Woo, Son, Sang-Wook, Kim, Kwang-Tae, Son, Ho-Joon, Choi, Sang-Ho, Oh, Ji-Woon, Lee, Soong-Keun, Hyun   +8 more
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Hot Deformation Behavior of GCr15 Steel

Journal of Iron and Steel Research International, 2013
Hot deformation behavior of GCr15 (ASTM 52100) steel was investigated using single-hit compression tests on Gleeble-1500 simulator at the temperature range of 850–1100 °C and strain rate range of 0.1–10 s−1. The flow stress constitutive equation of GCr15 steel during hot deformation was determined by stress-strain curves analysis on the basis of the ...
Ning-qi Peng, Guang-bo Tang, Jun Yao, Zheng-dong Liu   +3 more
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Deformation Behavior of Glass Nanostructures in Hot Embossing

ACS Applied Materials & Interfaces, 2020
In the nanoscale glass formation, the flow and deformation behavior of glass materials are quite different from those in the macroscale because the mold cavity influences the viscous flow behaviors of glass because of the size effect. The knowledge of macroglass molding process no longer applies to the fabrication of glass microparts by hot embossing ...
Kangsen Li, Gang Xu, Xiaohua Liu, Feng Gong   +3 more
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Hot deformation behavior of FGH96 superalloys

Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material, 2006
Abstract The hot deformation behavior of FGH96 superalloys at 1070–1170°C and 5×10−4-2×10−1 s−1 were investigated by means of the isothermal compression tests at a Gleeble-1500 thermal mechanical simulator. The results show that dynamic recovery acts as the main softening mechanism below 2×10−3 s−1 whereas dynamic recrystallization acts as the main ...
Jiantao Liu, Guoquan Liu, Benfu Hu, Yuepeng Song, Ziran Qin, Yiwen Zhang   +5 more
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Hot Deformation Behavior of Bearing Steels

Journal of Engineering Materials and Technology, 2007
The material behaviors of two types of bearing steels at hot working conditions are investigated. Stress-strain curves at various temperatures (900–1300°C) and strain rates (1–50/s) are obtained by compression tests with a computer controlled servo-hydraulic Gleeble 3800 testing machine. Elongation and reduction of the area are also obtained by tensile
Ho Keun Moon, Jae Seong Lee, Sun Joon Yoo, Man Soo Joun, June Key Lee   +4 more
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Hot Deformation Behavior of TC21 Alloy

Applied Mechanics and Materials, 2013
The dynamic recrystallization behavior of TC21 alloy during hot compression deformation was investigated at 870~990 °C and strain rate of 0.001~10 s-1 on a Gleeble-3500 thermo-simulation machine. The results show that dynamic recovery and dynamic recrystallization occurs during hot deformation.
Hai Lin Xu, Hong Bo Dong, Yong Wang
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Hot deformation behavior of 2060 alloy

Journal of Alloys and Compounds, 2015
Abstract The hot deformation behavior of 2060 alloy has been studied using thermal simulation test, EBSD technique and transmission electron microscopy. The flow stress could be described by a Zener-Hollomon parameter in hyperbolic sine function with the hot deformation activation energy of 205 kJ/mol.
Ling Ou, Ziqiao Zheng, Yufeng Nie, Haigen Jian   +3 more
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Hot deformation behavior of hot extruded Al–6Mg alloy

Materials Science and Engineering: A, 2012
Abstract The behavior of hot extruded Al–6Mg during hot deformation has been studied using hot compression test. The tests were performed at temperatures of 350, 450, and 550 °C and strain rates of 0.001, 0.1, and 1 s−1. Due to the effects of friction and adiabatic heating generated during compression, the attained true stress–true strain curves have
M.A. Mostafaei, M. Kazeminezhad
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Hot Deformation Behavior of V-Microalloyed Steel

Journal of Iron and Steel Research International, 2010
Abstract Through the expansion curve of continuous cooling transformation at different cooling rates measured by THERMECMASTOR-Z thermal simulator for U75V rail steel, the continuous cooling transformation curve was obtained. The influence on steel microstructure and hardness at different cooling rates was studied.
An-chao Ren, Yu Ji, Gui-feng Zhou, Ze-xi Yuan, Bin Han, Yi Li   +5 more
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Hot Deformation Behavior during the Hot Compression of AZ31 Alloy

Advanced Materials Research, 2010
The hot deformation behavior of as-cast AZ31 magnesium alloys have been investigated at 200~400°C and strain rates 0.001~1s-1 by means of hot compression tests on a Gleeble-1500D thermal-mechanical simulator. We have analyzed the flow stress-strain curve and presented the constitutive equation by calculating stress exponent, activation energy and Zemer-
Shu Li Sun, Min Gang Zhang, Wen Wu He, Jun Qi Zhou, Gang Sun   +4 more
openaire   +1 more source