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Volume 11
Issue 5
10.3390/ma11050805
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Article

Tensile Property of ANSI 304 Stainless Steel Weldments Subjected to Cavitation Erosion Based on Treatment of Laser Shock Processing

by
Lei Zhang
1,2,
Yue-Hua Liu
1,
Kai-Yu Luo
2,*,
Yong-Kang Zhang
3,*,
Yong Zhao
4,
Jian-Yun Huang
4,
Xu-Dong Wu
1 and
Chuang Zhou
1
1
School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
2
School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
3
School of Electro-Mechanical Engineering, Guangdong University of Technology, Guangzhou 51006, China
4
AVIC Chengdu Aircraft Design & Research Institute, Chengdu 610041, China
*
Authors to whom correspondence should be addressed.
Materials 2018, 11(5), 805; https://doi.org/10.3390/ma11050805
Received: 28 April 2018 / Revised: 13 May 2018 / Accepted: 14 May 2018 / Published: 16 May 2018
(This article belongs to the Special Issue Laser Materials Fabrication and Joining)
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Abstract

Tensile property was one important index of mechanical properties of ANSI 304 stainless steel laser weldments subjected to cavitation erosion (CE). Laser shock processing (LSP) was utilized to strengthen the CE resistance, and the tensile property and fracture morphology were analyzed through three replicated experiment times. Results showed tensile process of treated weldments was composed of elastic deformation, plastic deformation, and fracture. The elastic limit, elastic modulus, elongation, area reduction, and ultimate tensile strength of tensile sample after CE were higher in view of LSP. In the fracture surface, the fiber zone, radiation zone and shear lip zone were generated, and those were more obvious through LSP. The number and size of pores in the fracture surface were smaller, and the fracture surface was smoother and more uniform. The dimples were elongated along the unified direction due to effects of LSP, and the elongated direction was in agreement with the crack propagation direction. Their distribution and shape were uniform with deeper depth. It could be reflected that the tensile property was improved by LSP and the CE resistance was also enhanced. View Full-Text
Keywords: laser shock processing; tensile property; cavitation erosion; fracture morphology; laser weldment laser shock processing; tensile property; cavitation erosion; fracture morphology; laser weldment
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MDPI and ACS Style

Zhang, L.; Liu, Y.-H.; Luo, K.-Y.; Zhang, Y.-K.; Zhao, Y.; Huang, J.-Y.; Wu, X.-D.; Zhou, C. Tensile Property of ANSI 304 Stainless Steel Weldments Subjected to Cavitation Erosion Based on Treatment of Laser Shock Processing. Materials 2018, 11, 805. https://doi.org/10.3390/ma11050805

AMA Style

Zhang L, Liu Y-H, Luo K-Y, Zhang Y-K, Zhao Y, Huang J-Y, Wu X-D, Zhou C. Tensile Property of ANSI 304 Stainless Steel Weldments Subjected to Cavitation Erosion Based on Treatment of Laser Shock Processing. Materials. 2018; 11(5):805. https://doi.org/10.3390/ma11050805

Chicago/Turabian Style

Zhang, Lei, Yue-Hua Liu, Kai-Yu Luo, Yong-Kang Zhang, Yong Zhao, Jian-Yun Huang, Xu-Dong Wu, and Chuang Zhou. 2018. "Tensile Property of ANSI 304 Stainless Steel Weldments Subjected to Cavitation Erosion Based on Treatment of Laser Shock Processing" Materials 11, no. 5: 805. https://doi.org/10.3390/ma11050805

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