Surface sulfurization modification and tribological properties of iron-based oil bearing materials

被引：0

作者：

Zhang G.-T. ^{[1
]}

Yin Y.-G. ^{[2
]}

机构：

[1] School of Mechanical Engineering, Anhui University of Technology, Ma'anshan

[2] School of Mechanical Engineering, Hefei University of Technology, Hefei

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2020年 / 30卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Iron-based bearing material; Liquid-solid synergistic lubrication; Powder metallurgy; Surface sulphurizing;

D O I：

10.11817/j.ysxb.1004.0609.2020-37519

中图分类号：

学科分类号：

摘要：

To improve the tribological properties of iron-based oil materials under boundary lubrication, a solid sulfurization layer was formed on the materials surface by low-temperature liquid sulphurizing technology. The morphology and composition of the solid sulfurization layer were sutided. The tribological experiments were tested on the end-face friction and wear tester to reveal its self-lubricating mechanism. The results show that the main composition of the sulfide layer is FeS. The sulfide diffuses from the surface to the interior along the matrix pore, and the thickness of the sulfide layer is about 15 um. Compared with the unvulcanized sample, the friction coefficient of the vulcanized sample is obviously lower. And the longer the vulcanization time, the better the lubrication property. After surface modification, the comprehensive friction and wear performance is better than that of only solid or oil lubrication for the liquid-solid synergetic lubrication. And the anti-abrasion and anti-occlusal properties are improved under the boundary lubrication condition. © 2020, Science Press. All right reserved.

引用

页码：348 / 354

页数：6

共 15 条

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