Effect of Martensite Morphology on Tribological Behaviour of a Low-Alloy Steel

被引：9
作者：
Trevisiol, C. [1 ]
Jourani, A. [1 ]
Bouvier, S. [1 ]
机构：
[1] Univ Technol Compiegne, Sorbonne Univ, Ctr Rech Royallieu, CNRS,UMR 7337 Roberval, CS 60 319, F-60203 Compiegne, France
来源：
METALLOGRAPHY MICROSTRUCTURE AND ANALYSIS | 2019年 / 8卷 / 01期
关键词：
Microstructure; Dual-phase; Hardness; Abrasive wear; Friction; Roughness; STRESS ABRASIVE WEAR; DUAL-PHASE STEEL; MICROSTRUCTURAL FEATURES; VOLUME FRACTION; OXIDATIVE WEAR; HEAT-TREATMENT; FRICTION; SIZE; HARDNESS; CONTACT;
D O I：
10.1007/s13632-018-0503-9
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Few works are devoted to study the microstructure effect on tribological behaviors of contacting materials. The most of them are only focused on wear and without fixing the hardness and/or the chemical composition. A contribution is proposed by investigating the combined effects of microstructure and abrasive particle size. Friction tests are performed for steel pins characterized by various microstructures with similar hardness level (around 410 HV) and chemical composition. The microstructures are composed of a quenched martensitic microstructure, a tempered martensitic microstructure, and ferrite-martensite dual-phase microstructures with various martensite colony morphologies. These pins slide against abrasive papers with various particle sizes, from 15 to 200m, under different normal loads from 50 to 110N. Dual-phase microstructures enhance friction and wear behaviors. Among these microstructures, compared to fine and fibrous martensite colony morphologies, coarse and equiaxed martensite colonies minimize friction coefficient and wear rate. It is worth noting that for a given load, a transition in friction behavior is observed for a critical particle size (CPS) which depends on microstructure and normal load. This study also showed that whatever the microstructure and the abrasive particle sizes, friction coefficients decrease with increasing normal load. However, for wear rate, a reverse trend is observed.
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收藏
页码：123 / 134
页数：12
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