期刊
MATERIALS RESEARCH LETTERS
卷 3, 期 3, 页码 135-141出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/21663831.2015.1029645
关键词
Nanocrystalline; Stacking Fault Energy; Fatigue Strength; Fatigue Mechanism; Severe Plastic Deformation
资金
- National Natural Science Foundation of China [50931005, 51101162, 51331007]
Increasing the fatigue strengths of high-strength materials, especially their endurance limits is essentially challenging. The fatigue strengths of nanocrystalline (NC) Cu and Cu-Al alloys processed by high-pressure torsion were prominently enhanced with a decrease in stacking fault energy. This remarkable escalation can be attributed not only to their significantly increased tensile strengths in macro-scale, but also to the essentially improved microstructure stability and reduced strain localization within shear bands in microscale. Owing to the limitation of their intrinsic fatigue mechanisms, the fatigue limits of NC Cu and Cu-Al alloys cannot always acquire appreciable improvement with their monotonic strengths.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据