Open AccessTribological behavior of WC-4.32MgO-3.68B2O3 composite
Author(s) -
Jiaming Lai,
Jingmao Li,
Dezhi Zhu,
Liang Liang,
Shengguan Qu,
Huiyun Li,
Xiaoqiang Li
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1986/1/012032
Subject(s) - materials science , tribology , abrasive , abrasion (mechanical) , composite number , fretting , composite material , sintering , friction coefficient , grinding , phase (matter) , metallurgy , organic chemistry , chemistry
WC-4.32MgO-3.68B 2 O 3 composite material was prepared by S park plasma sintering technology, and then Si 3 N 4 ball was used as the counter-grinding material to study the friction and wear behavior under different loading conditions by means of fretting friction. The research results show that: the distribution of the second phase has a significant effect on the wear behavior of the composites. During the fretting friction process, second phase particles peeled off from the structure, causing the abrasion of the matrix to increase. The research found that with gradually increase of the load, the friction coefficient of the material gradually decreases, but the degree of wear gradually increases. The number of furrows also increased significantly, which was related to the wear degree of convex on the surface of the materials. It can be observed from the wear scar that the main wear mechanisms of composite materials are abrasive wear and oxidative wear.