Evolution of nanostructure in α-brass upon cryorolling

被引：27
作者：
Das, Jayanta [1 ]
机构：
[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 530卷
关键词：
Alpha-brass; Shear bands; Twinning; Nanostructure; Cryorolling; STACKING-FAULT ENERGY; RATE SENSITIVITY; STRAIN-RATE; COPPER; DEFORMATION; DUCTILITY; TWIN;
D O I：
10.1016/j.msea.2011.10.002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructure of a-brass has been investigated at 98% and 200% of cryorolling (CR). Severe cryorolling introduces microscopic shear bands, forms primary and secondary twins, and the twin density increases with increase of plastic strain. Even though the average hardness values in CR200 (197 Hv) does not increase significantly than that of CR98 (189 Hv), but the hardness distribution become narrow in CR200 due to the narrow size distribution and refinement of twin lamellar spacing. The microscopic mechanism on the evolution of homogeneous nanostructure in alpha-brass has been reported. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：675 / 679
页数：5
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