Effect of load ratio and saltwater corrosive environment on the initiation life of fatigue of 10Ni5CrMoV steel

2017 2nd International Seminar on Advances in Materials Science and Engineering

Xie, Xing^1,2 ; Yi, Hong^1 ; Xu, Jian^2 ; Gen, Liming^2 ; Chen, Luyun^1

Shanghai Jiao Tong University, School of Naval Architecture Ocean and Civil Engineering, Shanghai

200240, China^1

China Ship Development and Design Center, Wuhan

430064, China^2

关键词: Corrosion pits;    Corrosive environment;    Environmental media;    Fatigue initiation life;    Load ratio;    Micro topography;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012141/pdf
DOI  :  10.1088/1757-899X/231/1/012141

来源: IOP

【 摘 要 】

Fatigue initiation life has been studied with 10CrNi5MoV steel for use in ocean engineering at different load ratios and in different environmental media. The microstructure and micro-topography have been observed and analyzed by means of SEM, EDS and EBSD. Our findings indicate that, the initiation life of 10Ni5CrMoV steel in seawater is shorter than that in air, and the difference in longevity is larger with the increasing of load ratio. Corrosion pits had a great influence on initial corrosion fatigue life.