The fatigue limits of copper single crystals cyclically deformed at constant plastic strain amplitudes

X. W. Li; Y. Umakoshi; Z. G. Wang; S. X. Li

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The fatigue limits of copper single crystals cyclically deformed at constant plastic strain amplitudes

机译：铜单晶在恒定塑性应变振幅下循环变形的疲劳极限

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Based on systematic surface observations, experimental measurements on the fatigue limits of differently oriented copper single crystals cyclically deformed at constant plastic strain amplitudes are summarized, and an orientation dependence of the fatigue limit is sketched. It was found that the fatigue limits of crystals depend mainly upon the low-strain-amplitude dislocation structures, which are characteristic of the particular crystal orientations. When multiple-slip deformation is the main mode of deformation and ultimately produces stable low-energy dislocation structures such as labyrinth and cell structures, the fatigue limit can be improved notably.

机译：基于系统的表面观察，总结了在恒定塑性应变振幅下循环变形的不同取向的铜单晶的疲劳极限的实验测量结果，并概述了疲劳极限的取向依赖性。发现晶体的疲劳极限主要取决于低应变振幅位错结构，其是特定晶体取向的特征。当多滑移变形是变形的主要模式，并最终产生稳定的低能量位错结构（如迷宫和孔结构）时，疲劳极限可以得到显着改善。

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《Philosophical Magazine Letters》 |2001年第7期|共8页
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X. W. Li; Y. Umakoshi; Z. G. Wang; S. X. Li;
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正文语种 eng
中图分类物理学;
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1. The fatigue limits of copper single crystals cyclically deformed at constant plastic strain amplitudes [J] . X. W. Li, Y. Umakoshi, Z. G. Wang, Philosophical Magazine Letters . 2001,第7期

机译：铜单晶在恒定塑性应变振幅下循环变形的疲劳极限
2. Plastic-Strain-Amplitude Dependence of Dislocation Structures in Cyclically Deformed (112)-Oriented Cu-7 at. pct Al Alloy Single Crystals [J] . X.W. LI, N. PENG, X.M. WU Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science . 2014,第9期

机译：周期性变形（112）取向Cu-7 at的位错结构的塑性应变幅度依赖性。 pct铝合金单晶
3. Rearrangement of fatigue dislocation structure in copper single crystals associated with reduction in the plastic strain amplitude [J] . Watanabe C., Kanmuri K., Kato M., Philosophical Magazine, A. Physics of condensed matter, defects and mechanical properties . 2002,第7期

机译：铜单晶疲劳位错结构的重排与塑性应变幅度的减小有关
4. ORIENTATION DEPENDENCE OF PLATEAU BEHAVIOR IN CYCLIC STRESS- STRAIN CURVE OF COPPER SINGLE CRYSTALS [C] . X.W. Li, Z.G. Wang, S.X. Li International fatigue congress . 1999

机译：铜单晶循环应力-应变曲线中平台行为的方向依赖性
5. Substructure based modeling of nickel single crystals cycled at low plastic strain amplitudes. [D] . Zhou, Dong. 2004

机译：在低塑性应变幅度下循环的镍单晶的基于子结构的建模。
6. Influence of cutting parameters on the depth of subsurface deformed layer in nano-cutting process of single crystal copper [O] . Quanlong Wang, Qingshun Bai, Jiaxuan Chen, 2015

机译：单晶铜纳米切削过程中切削参数对表面变形层深度的影响
7. Determination of Long-Range Internal Stresses in Cyclically Deformed Copper Single Crystals Using Convergent Beam Electron Diffraction [O] . Roya Ermagan, Maxime Sauzay, Matthew H. Mecklenburg, 2020

机译：使用会聚光束电子衍射测定循环变形铜单晶中的远程内应力
8. Differences in Fatigue Behavior of Single Copper Crystals and Polycrystalline Copper at Elevated Temperatures [R] . Wood, W. A., Nine, H. D. 1965

机译：单晶铜和多晶铜在高温下疲劳行为的差异

The fatigue limits of copper single crystals cyclically deformed at constant plastic strain amplitudes

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