Twin boundary: Controllable interface to fatigue cracking

被引：27
作者：
Zhang, Zhefeng [1 ]
Li, Linlin [1 ]
Zhang, Zhenjun [1 ]
Zhang, Peng [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2017年 / 33卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Fatigue cracking; Twin boundary; Stacking fault energy; Orientation; STAGE-I PROPAGATION; HIGH-STRAIN FATIGUE; CRYSTALLOGRAPHIC ORIENTATION; CYCLIC DEFORMATION; NUCLEATION; BEHAVIORS; MECHANISM; SYSTEMS; METALS; COPPER;
D O I：
10.1016/j.jmst.2017.03.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Twin boundaries (TBs) are key factors influencing the mechanical properties of crystalline materials. We have investigated the intrinsic fatigue cracking mechanisms of TBs during the past decade. The effects of TB orientations on the fatigue cracking mechanisms were revealed via cyclic deformation of a series of grown Cu bicrystals with a sole TB. Furthermore, the combined effects of crystallographic orientation and stacking fault energy (SFE) on the fatigue cracking mechanisms were clarified through cyclic deformation of polycrystalline Cu and Cu alloys. Both developments were reviewed in this report which will provide implications to optimize the interfacial design for the improvement of fatigue performance of metallic materials. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
引用
收藏
页码：603 / 606
页数：4
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