Microstructure and wear properties of high-speed steel with high molybdenum content under rolling-sliding wear

被引：41

作者：

Xu, Liujie ^{[1
]}

Fan, Xiaoman ^{[2
]}

Wei, Shizhong ^{[1
]}

Liu, Dongdong ^{[2
]}

Zhou, He ^{[2
]}

Zhang, Guoshang ^{[2
]}

Zhou, Yucheng ^{[3
]}

机构：

[1] Henan Univ Sci & Technol, Engn Res Ctr Tribol & Mat Protect, Minist Educ, Luoyang 471003, Peoples R China

[2] Henan Univ Sci & Technol, Sch Mat Sci & Engn, Luoyang 471003, Peoples R China

[3] Henan Univ Sci & Technol, Inst Adv Mat, Luoyang 471003, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2017年 / 116卷

基金：

中国国家自然科学基金;

关键词：

High-speed steel; Molybdenum carbide; Rolling-sliding; Wear failure; WORK ROLL; CONTACT FATIGUE; MILL ROLLS; BEHAVIOR; DAMAGE; FRICTION; SURFACE; STRESS; MODEL; IRON;

D O I：

10.1016/j.triboint.2017.07.002

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper focuses on the microstructures and frictional wear behaviors of high-speed steel (HSS) with high molybdenum content under different rolling-sliding conditions using self-made wear tester. Results showed that the molybdenum element in HSS mainly formed M2C-type carbide ((Fe27.42Mo48.26Cr24.32))(2)C). M2C (21-1) is coherent with alpha-Fe (110). The sliding ratio has a significant influence on frictional wear behaviors. As sliding ratio increases from approximately 1%-10%, the frictional coefficient rises and then decreases, and the wear weight loss rises obviously because the wear mode varies from fatigue to sliding wear. The high stress rolling-sliding contact can cause not only fracture and desquamating of M2C, but also martensitic transformation in subsurface. The martensitic transformation contributes in improving hardness and wear resistance.

引用

页码：39 / 46

页数：8

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