Thermal-induced surface damage of M50 steel at rolling-sliding contacts

被引：26

作者：

Zhang, Chuanwei ^{[1
]}

Peng, Bo ^{[2
]}

Wang, Liqin ^{[1
]}

Ma, Xinxin ^{[1
]}

Gu, Le ^{[1
]}

机构：

[1] Harbin Inst Technol, MIIT Key Lab Aerosp Bearing Technol & Equipment, Harbin 150001, Heilongjiang, Peoples R China

[2] China Acad Launch Vehicle Technol, R&D Ctr, Beijing 100076, Peoples R China

来源：

WEAR | 2019年 / 420卷

基金：

中国国家自然科学基金;

关键词：

M50; steel; Scuffing; Thermal softening; Plastic deformation; SCUFFING INITIATION; BEARING STEEL; FRICTION; LUBRICATION; PERFORMANCE; BEHAVIOR; FATIGUE;

D O I：

10.1016/j.wear.2018.12.091

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The thermal-induced surface damage of M50 steel at rolling-sliding contacts under heavy load and high speed is investigated. A two-disk test rig is used for testing the surface damage of M50 steel at scuffing. The thermal response and near-surface deformation of M50 steel at rolling-sliding contacts are analyzed based on its high-temperature properties. The results show that the surface damage of M50 steel at rolling-sliding contacts is basically caused by thermal softening of near-surface material, which is generated by the heat of both the friction and plastic deformation. A high temperature due to the frictional heat at rolling-sliding contacts first reduces the yield strength of M50 steel. A large plastic deformation of near-surface material is therefore generated, which, in turn, causes a large temperature rise. Scuffing occurs at a quick increase in thermal softening of M50 steel.

引用

页码：116 / 122

页数：7

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