Micromechanism of residual stress reduction by low frequency alternating magnetic field treatment

被引：18

作者：

Wu, S ^{[1
]}

Lu, A ^{[1
]}

Zhao, H ^{[1
]}

Fang, H ^{[1
]}

Tang, F ^{[1
]}

机构：

[1] Tsing Hua Univ, Welding Div, Dept Mech Engn, Beijing 100084, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 328卷 / 1-2期

关键词：

magnetic treatment; residual stress; dislocation; stress reduction;

D O I：

10.1016/S0921-5093(01)01682-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Low frequency alternating magnetic field is used to process welded samples having internal residual stress. Magnetic treatment parameters and the magnitude of stress relaxation are investigated quantitatively. The microstructural change of the material during magnetic treatment is observed by TEM and discussed from the point of view of the dislocation behavior in the processed material, A physical model of residual stress relaxation produced by magnetic treatment is presented based on the experimental results and microstructural observation. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：133 / 136

页数：4