Experimental Study of Laser - enhanced 5A03 Aluminum Alloy and Its Stress Corrosion Resistance

International Conference on Mechanical Engineering and Applied Composite Materials

机械制造;材料科学

Wang, Guicheng^1,2 ; Chen, Jing^1 ; Pang, Tao^1

School of Mechanical Engineering, Jiangsu University(JSU), Zhenjiang, Jiangsu

212013, China^1

Silicon Lake College of Vocational Technology (SLC), Jiangsu, Kunshan, China^2

关键词: Breaking strength;    Deformation strengthening;    High temperature;    Laser shocks;    Residual compressive stress;    Stress corrosion;    Stress corrosion resistance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/307/1/012042/pdf
DOI  :  10.1088/1757-899X/307/1/012042

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Based on the study of improving the stress corrosion resistance of 5A03 aluminum alloy for ship, this paper mainly studied the tensile test, surface morphology and residual stress under laser shock, high temperature and stress corrosion. It is found that the residual compressive stress and the grain refinement on the surface of the material during the heat strengthening process increase the breaking strength of the sample in the stress corrosion environment. Appropriate high temperature maintenance helps to enhance the effect of deformation strengthening. In the 300°C environment insulation, due to recrystallization of the material, the performance decreased significantly. This study provides an experimental basis for effectively improving the stress corrosion resistance of 5A03 aluminum alloy.