Inter- and intragranular stresses in cyclically-deformed 316 stainless steel

被引：44

作者：

Wang, XL ^{[1
]}

Wang, YD

Stoica, AD

Horton, DJ

Tian, H

Liaw, PK

Choo, H

Richardson, JW

Maxey, E

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA

[2] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA

[3] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[4] Argonne Natl Lab, Argonne, IL 60439 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 399卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

intergranular stresses; neutron diffraction; stainless steel;

D O I：

10.1016/j.msea.2005.02.030

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Neutron diffraction was used to study residual stresses in cyclically-deformed 316 LN stainless steel, The tension-compression high-cycle fatigue tests were conducted in air with a frequency of 0.2 Hz. Large intergranular stresses were found to develop in the stainless steel as a result of elastic and plastic anisotropy. These intergranular stresses started to decrease when micro-cracks were initiated at the surface and vanished when the sample reached failure. Cyclic loading also led to the development of intragranular stresses. as evidenced by the broadening of the diffraction peaks. Analysis of the orientation dependence of the measured peak widths indicates that the immobile dislocations generated by fatigue deformation are mostly edge rather than screw type. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：114 / 119

页数：6

共 19 条

[1]

[Anonymous], J NEUTRON RES

[2] An X-ray method for the determination of stored energies in texture components of deformed metals;: Application to cold worked ultra high purity iron [J].