Comparison of the fatigue behavior and residual stress stability of laser-shock peened and deep rolled austenitic stainless steel AISI 304 in the temperature range 25-600°C

被引：146

作者：

Nikitin, I. ^{[1
]}

Altenberger, I. ^{[1
]}

机构：

[1] Univ Kassel, Inst Mat Engn, D-3500 Kassel, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 465卷 / 1-2期

关键词：

laser-shock peening; deep rolling; residual stress relaxation; fatigue; nanocrystals formation;

D O I：

10.1016/j.msea.2007.02.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Laser-shock peening and deep rolling were applied to an austenitic stainless steel AISI 304 and the effects on the fatigue life were investigated. Isothermal push-pull fatigue tests were performed in the temperature range 25-600 degrees C. The results of the investigations, e.g. s/n curves, cyclic deformation curves as well as the residual stress stability of the laser-shock peened condition were compared to untreated and deep rolled conditions. Near-surface regions were characterized using X-ray diffraction methods, transmission electron microscopy (TEM) and focused ion beam microscopy (FIB). The different near-surface microstructures as well as residual stress stabilities of laser-shock peened and deep rolled specimens were investigated and discussed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：176 / 182

页数：7

共 22 条

[1] An in situ transmission electron microscope study of the thermal stability of near-surface microstructures induced by deep rolling and laser-shock peening [J].