Effect of stacking fault energy on mechanical behavior of cold-forging Cu and Cu alloys

被引：41
|
作者：
Wu, X. X. [1 ]
San, X. Y. [1 ]
Liang, X. G. [1 ]
Gong, Y. L. [1 ]
Zhu, X. K. [1 ]
机构：
[1] Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Peoples R China
来源：
MATERIALS & DESIGN | 2013年 / 47卷
基金：
中国国家自然科学基金;
关键词：
WORK-HARDENING BEHAVIOR; ULTRAFINE-GRAINED CU; COPPER; DEFORMATION; EVOLUTION; MICROSTRUCTURES; DUCTILITY; METALS;
D O I：
10.1016/j.matdes.2012.12.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cu, Cu-2.87 wt% Mn, Cu-4.40 wt% Mn and Cu-10.19 wt% Mn were prepared by cold-forging. The deformation behavior of Cu-Mn alloys is consistent with the Cu-Al alloys and Cu-Zn alloys but without lowering the stacking fault energy to simultaneously increase the strength and ductility. A series of analysis demonstrate that Cu-Mn alloys have a much smaller twin density than low stacking fault energy (SFE) metals, and dislocation strengthening is the major reason for the higher strength. The role of short range order (SRO) in promoting the mechanical properties has also been briefly discussed. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：372 / 376
页数：5
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