On the geometry of twin boundaries and their contribution to the strengthening and recovery of FCC polycrystals

被引：9
作者：
Bystrzycki, J
Kurzydlowski, KJ
Przetakiewicz, W
机构：
[1] WARSAW UNIV TECHNOL,INST MAT SCI & ENGN,PL-02524 WARSAW,POLAND
[2] MIL UNIV TECHNOL,DEPT MAT TECHNOL,PL-01489 WARSAW,POLAND
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1997年 / 225卷 / 1-2期
关键词：
FCC polycrystals; recovery; twin boundaries;
D O I：
10.1016/S0921-5093(96)10874-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Results are presented of a comprehensive study of: (a) the 3-dimensional geometry of twin grains in FCC polycrystals; (b) the strengthening effect of twin boundaries (TBs); and (c) their role in the process of recovery, Two types of twin shapes were observed: lamellar and edge. The relative number of twins of a given shape depends on the slacking fault energy of the material. It is shown that TBs in the early stages of plastic deformation significantly strengthen FCC polycrystals. They also significantly contribute to the process of recovery of pre-strained polycrystals. (C) 1997 Elsevier Science S.A.
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页码：188 / 195
页数：8
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