Influence of shot peening on the fatigue life of laser hardened 17-4PH steel

被引：46

作者：

Wang, Zhou ^{[1
]}

Jiang, Chuanhai ^{[1
]}

Gan, Xiaoyan ^{[2
]}

Chen, Yanhua ^{[1
]}

Ji, Vincent ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[3] Univ Paris 11, UMR 8182, LEMHE ICMMO, F-91405 Orsay, France

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2011年 / 33卷 / 04期

关键词：

Laser hardening; Dual shot peening; Residual stress distribution; Fatigue life; STAINLESS-STEEL; MICROSTRUCTURE; IMPROVEMENT; ALLOY;

D O I：

10.1016/j.ijfatigue.2010.10.010

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In order to improve the fatigue life of 17-4PH steel after laser hardening treatment, shot peening and dual shot peening treatments were performed on laser hardened 17-4PH steel in this paper. Characteristic changes of the roughness, hardness and residual stress distribution in three typical areas were discussed in order to gain a better understanding about the shot peening influence on laser hardened material state. Results showed that initial residual stresses had no influence on the finial residual stress distribution in shot peening influence region after shot peening treatment. The fatigue life of laser hardened 17-4PH steel increased dramatically after shot peening treatment. (c) 2010 Elsevier Ltd. All rights reserved.

引用

页码：549 / 556

页数：8

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