我心飞翔分享 http://blog.sciencenet.cn/u/cquguon

博文

室温扭转变形纯铜微观组织特征及力学性能

已有 2030 次阅读 2016-8-26 11:24 |系统分类:论文交流




Microstructures and Mechanical Properties of Commercial Hot-Extruded Copper Processed by Torsion Deformation
Authors
  • Ning Guo,
  • Xiaoxia Li,
  • Mei Xiao,
  • Renlong Xin,
  • Linjiang Chai,
  • Bo Song,
  • Hongbing Yu,
  • Lu Li
Abstract

Free-end torsion deformation is used for processing copper rod in this work. Both microstructures and mechanical properties of the torsional rods are quantitatively analyzed. The results show that gradient lamellar dislocation substructures (LDS) along the radial direction as the main defects are formed after torsion. The increment of the LDS density, the shrinking of spacing size, and the change of length/spacing (L/S) ratio of the LDS are all non-monotonic function of torsion revolution. High-density LDS with fine spacing can retain strain hardening capability, which results in good combination of high tensile strength and good ductility in the torsional deformed sample with large number of revolutions. The influence of torsion strain on primary twin boundaries (TBs) in the hot-extruded rod is also discussed.


http://onlinelibrary.wiley.com/doi/10.1002/adem.201600252/full



http://wap.sciencenet.cn/blog-58154-998825.html

上一篇:室温扭转变形扭转速率对镁合金微观组织及硬化行为的影响规律
下一篇:最中意的论文老是不被引用,不怎么中意的却被顶尖杂志引用......

1 陈善亮

该博文允许注册用户评论 请点击登录 评论 (0 个评论)

数据加载中...

Archiver|手机版|科学网 ( 京ICP备07017567号-12 )

GMT+8, 2021-4-12 09:58

Powered by ScienceNet.cn

Copyright © 2007- 中国科学报社

返回顶部