Evaluation of rolling contact fatigue of induction heated 13Cr-2Ni-2Mo Stainless steel bar with Si3N4-ball

2017 5th International Conference on Mechanical Engineering, Materials Science and Civil Engineering

机械制造;材料科学;土木建筑工程

Yadoiwa, Ariyasu^1 ; Mizobe, Koshiro^1 ; Kida, Katsuyuki^1

University of Toyama, Gofuku 3190, Toyama

930-8555, Japan^1

关键词: Bearing materials;    Excellent corrosion resistances;    High hardness;    Rolling contact fatigue;    Testing machine;    Weibull modulus;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/324/1/012064/pdf
DOI  :  10.1088/1757-899X/324/1/012064

来源: IOP

【 摘 要 】

13Cr % martensitic stainless steels were used in various industry, because they have excellent corrosion resistance and high hardness among other stainless steels. They are also expected as a bearing material, however, the research on rolling contact fatigue (RCF) is not enough. In this study, 13Cr-2Ni-2Mo stainless steels were quenched by induction heating and their RCF lives were evaluated. A Si3N4-ball was used in order to apply higher stress (Pmax= 5.6 GPa) than our previous tests (Pmax=5.3 GPa), in a single-ball RCF testing machine. It was found that the basic life (L10) was 2.20×106cycles and Median life (L50) was 6.04×106cycles. In addition, Weibull modulus became higher than the previous tests.