Effects of double quenching on fatigue properties of high carbon bearing steel with extra-high purity

被引：30

作者：

Cao, Zhaoxi ^{[1
]}

Shi, Zhiyue ^{[2
]}

Yu, Feng ^{[2
]}

Sugimoto, Koh-ichi ^{[3
]}

Cao, Wenquan ^{[2
]}

Weng, Yuqing ^{[2
]}

机构：

[1] Univ Sydney, Sci Fac, Sydney, NSW 2006, Australia

[2] CISRI, Beijing 100081, Peoples R China

[3] Shinshu Univ, Matsumoto, Nagano 3900802, Japan

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2019年 / 128卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Bearing steel; Extra-high purity steel; Double quenching; Fatigue property; Inclusion characters; Weibull distribution; REFINEMENT; TOUGHNESS; LIFE;

D O I：

10.1016/j.ijfatigue.2019.06.036

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this study, high carbon bearing steel of GCr15 (100Cr6) is applied to explore the double quenching effects on both rotated bending fatigue strength (RBF-strength) and rolling contact fatigue life (RCF-life). The RBF-strength and RCF-life is about 1000 MPa and 1.1 x 10(7) cycles under a maximum Hertzian stress of 4.5 GPa for the single quenched and tempered specimens but about 1030 MPa and 5.6 x 10(7) cycles for the double quenched and tempered specimens. The enhancement of RBF-strength and RCF-life are attributed to the increased impact toughness due to the refinements of both carbides and prior austenite grain size.

引用

页数：6

共 23 条

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