Effects of Laser Shock Processing on Morphologies and Mechanical Properties of ANSI 304 Stainless Steel Weldments Subjected to Cavitation Erosion

被引：9

作者：

Zhang, Lei ^{[1
,2
]}

Lu, Jin-Zhong ^{[2
]}

Zhang, Yong-Kang ^{[3
]}

Ma, Hai-Le ^{[1
]}

Luo, Kai-Yu ^{[2
]}

Dai, Feng-Ze ^{[2
]}

机构：

[1] Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Peoples R China

[2] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Peoples R China

[3] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China

来源：

MATERIALS | 2017年 / 10卷 / 03期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

laser shock processing; cavitation erosion; laser weldment; 316L STAINLESS-STEEL; CORROSION BEHAVIOR; TENSILE PROPERTIES; SURFACE-ROUGHNESS; RESIDUAL-STRESS; ALUMINUM-ALLOY; RESISTANCE; MICROSTRUCTURE; FRICTION; COATINGS;

D O I：

10.3390/ma10030292

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Effects of laser shock processing (LSP) on the cavitation erosion resistance of laser weldments were investigated by optical microscope (OM), scanning electron microscope (SEM) observations, roughness tester, micro hardness tester, and X-ray diffraction (XRD) technology. The morphological microstructures were characterized. Cumulative mass loss, incubation period, erosion rate, and damaged surface areas were monitored during cavitation erosion. Surface roughness, micro-hardness, and residual stress were measured in different zones. Results showed that LSP could improve the damage of morphological microstructures and mechanical properties after cavitation erosion. The compressive residual stresses were generated during the process of LSP, which was an effective guarantee for the improvement of the above mentioned properties.

引用

页数：16

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