Laser shock peening on high-strength steels

被引：0

作者：

Wang, Hao ^{[1
]}

Keller, Soeren ^{[2
]}

Bai, Yongtao ^{[3
]}

Kashaev, Nikolai ^{[2
]}

Gurevich, Evgeny L. ^{[4
]}

Ostendorf, Andreas ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Chair Appl Laser Technol, Univ Str 150, D-44801 Bochum, Germany

[2] Helmholtz Zentrum Geesthacht, Inst Mat Res, Max Planck Str 1, D-21502 Geesthacht, Germany

[3] Chongqing Univ, Sch Civil & Struct Engn, Chongqing 400045, Peoples R China

[4] Munster Univ Appl Sci, Laser Ctr LFM, Stegerwaldstr 39, D-48565 Steinfurt, Germany

来源：

ADVANCED LASER PROCESSING AND MANUFACTURING IV | 2020年 / 11546卷

关键词：

High strength steel; microhardness; residual stress; laser shock peening; 316L STAINLESS-STEEL; CORROSION-RESISTANCE; FATIGUE PERFORMANCE; ALLOY; SEAWATER; BEHAVIOR;

D O I：

10.1117/12.2574988

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High strength steel has been used in the aviation industry and automotive body structural applications to reduce its mass through a reduction in thickness. Therefore, it is very important to enhance its mechanical property, such as microhardness. In the present research, the high strength steel samples were treated by laser shock peening (LSP) with different laser pulse energy and laser pulse width. The microhardness and residual stress were measured to compare the difference between laser energy of 3 J with 10 ns and 5 J with 20 ns. The results in the study show that the surface LSP treatment can increase the microhardness and the compressive residual stress can be found when the samples were tested by hole drilling testing.

引用

页数：6

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