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| Keywords | |
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Ratcheting |
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Uniaxial cyclic loading |
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Crystal structure |
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Fault energy |
| Authors | |
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KANG Guo-Zheng |
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LIU Yu-Jie |
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GAO Qiang |
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DONG Ya-Wei |
| PubMed | |
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Article by Kang,G.Z |
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Article by Liu,Y.J |
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Article by Gao,q |
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Article by Dong,Y.W |
Uniaxial Ratcheting Behaviors of Metals with Diffent Crystal Structures or Values of Fault Energy: Macroscopic Experiments
Guozheng Kang1), Yujie Liu2), Yawei Dong2),Qing Gao2)
1) State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China
2) School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, China
The uniaxial ratcheting behaviors of several metals with different crystal structures or values of fault energy were observed by the stress-controlled cyclic tests at room temperature. The prescribed metals included 316L stainless steel, pure copper, pure aluminum, and ordinary 20# carbon steel. The effects of applied mean stress, stress amplitude and stress ratio on the uniaxial ratcheting were also investigated. The observations show that different crystal structures or values of fault energy result in more or less different ratcheting behaviors for the prescribed metals. The different ratcheting behaviors are partially caused by the variation of dislocation mobility.
the National Natural Science Foundation of China (Grant No. 10772153)
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