Advanced   Register
IMR OpenIR  > 中国科学院金属研究所  > 期刊论文

题名: Improving joint performance of friction stir welded wrought Mg alloy by controlling non-uniform deformation behavior
作者: Shang, Q.;  Ni, D. R.;  Xue, P.;  Xiao, B. L.;  Ma, Z. Y.
发表日期: 2017-11-7
摘要: Macroscopic non-uniform deformation is usually found in deformed joints of friction sir welded (FSW) wrought Mg alloys, detrimental to the joint performance. In the present work, two kinds of FSW joints with different stirred zone (SZ) structures were generated for extruded AZ31 plates. Comparative studies were conducted aiming to unravel the underline mechanism of the non-uniform deformation and their effect on tensile properties. It was found that the occurrence of non-uniform deformation was associated with the special texture distribution and twinning behavior in the SZ. The shape of concave sub-regions in the SZ coincided with the distribution area of extension twins. Texture evolution showed that consistent lattice rotation occurred across the SZ during tensile process. Schmid factor analysis revealed the role acted by basal slip and extension twinning in sub-regions at various deformation stages. In addition, the non-uniform deformation behavior could be suppressed by modifying the texture distribution through increasing the tool rotation rate, which meanwhile could improve both the tensile strength and ductility of the joints. Digital image correlation measurements provided detailed examination of the actual strain distribution evolved in the joints and demonstrated the dominant contribution of strain localization to the tensile properties.
Appears in Collections:中国科学院金属研究所_期刊论文

Files in This Item:

There are no files associated with this item.

Recommended Citation:
Shang, Q.,Ni, D. R.,Xue, P.,et al. Improving Joint Performance Of Friction Stir Welded Wrought Mg Alloy By Controlling Non-uniform Deformation Behavior[J]. Elsevier Science Sa,2017,707:426-434.

SCI Citaion Data:
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Shang, Q.]'s Articles
 [Ni, D. R.]'s Articles
 [Xue, P.]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Shang, Q.]‘s Articles
 [Ni, D. R.]‘s Articles
 [Xue, P.]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to  Add to Digg  Add to Reddit 
所有评论 (0)
内 容:
Email:  *
验证码:   刷新
标 题:
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.



Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院金属研究所  -Feedback
Powered by CSpace