Towards bulk nanostructured materials in pure shear

被引：11
|
作者：
Eivani, A. R. [1 ]
机构：
[1] Iran Univ Sci & Technol, Sch Met & Mat Engn, Tehran, Iran
来源：
MATERIALS LETTERS | 2015年 / 139卷
关键词：
Severe plastic deformation; Microstructure; Recrystallization; Nanocrystaline materials; DEFORMATION;
D O I：
10.1016/j.matlet.2014.09.114
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Pure shear extrusion (PSE) is introduced as a new technique for severe plastic deformation of metals and alloys. In PSE, a sample with square cross section deforms to a rhombic alongside the diagonals and then, reversed back to its initial shape. The efficiency of pure shear for grain refinement is demonstrated by investigating the microstructure of two aluminum alloys, i.e., AA1050 and AA6063, after PSE. Formation of nanosized cell structures is resolved in both alloys. The percentage of high angle boundaries is found to be greater for the case of AA6063 alloy when compared to AA1050. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：15 / 18
页数：4
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