Wear behaviors of AISI 316L stainless steel with a gradient structured surface layer induced by laser shock peening

被引：8
|
作者：
Luo, Kaiyu [1 ]
Xu, Shengkai [1 ]
Xu, Lujie [1 ]
Xing, Yu [1 ]
Zhang, Hongmei [1 ]
Wang, Changyu [1 ,2 ]
Lu, Jinzhong [1 ,2 ]
机构：
[1] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Peoples R China
[2] Xuefu Rd 301, Zhenjiang 212013, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2024年 / 481卷
基金：
中国国家自然科学基金;
关键词：
Gradient structured surface; Laser shock peening; AISI 316 L stainless steel; Wear behavior; GRAIN-SIZE; RESIDUAL-STRESS; MICROSTRUCTURE; EVOLUTION; FRICTION; NANOCRYSTALLIZATION; DEFORMATION; HARDNESS; MARTENSITE; ROUGHNESS;
D O I：
10.1016/j.surfcoat.2024.130608
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A gradient structured (GS) surface layer was fabricated by laser shock peening (LSP) on an AISI 316 L stainless steel (SS), and its wear behavior was investigated. Results show that the GS layer contains ultrafine nanocrystalline, nanocrystalline, ultrafine grain and coarse sub-grain. The cross-sectional microhardness of GS 316 L SS showed a gradient, and the surface hardness reached 4.87 GPa, an increase of 70.99 %, resulting in a 41.4 % increase in wear resistance. The microstructure evolution after wear indicates that the surface structure of GS 316 L SS forms a hardened layer during wear, which in turn effectively resists the wear failure.
引用
收藏
页数：14
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