Effect of ferroboron particle size on the tribological properties of copper-based powder metallurgy brake materials

被引：1

作者：

He, Tiantian ^{[1
,2
]}

Shao, Ruonan ^{[1
]}

Du, Sanming ^{[1
]}

Yuan, Zhenjun ^{[1
]}

Zhang, Xin ^{[1
]}

Deng, Sier ^{[3
]}

机构：

[1] Henan Univ Sci & Technol, Natl United Engn Lab Adv Bearing Tribol, Luoyang 471000, Peoples R China

[2] Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol, Beijing 100084, Peoples R China

[3] Henan Univ Sci & Technol, Sch Mechatron Engn, Luoyang 471000, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 09期

基金：

中国国家自然科学基金;

关键词：

copper-based friction material; powder metallurgy; ferroboron size; MECHANICAL-PROPERTIES; GRAIN-SIZE; FRICTION; WEAR; MICROSTRUCTURE; PERFORMANCE; BEHAVIOR; SHAPE;

D O I：

10.1088/2053-1591/ab34d3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Copper-based friction materials are prepared by powder metallurgy process. The effect of different sizes of ferroboron powder on the properties of materials has been studied. The results show that the variation of ferroboron size has no significant effect on the density and porosity of samples. The hardness decreases more obviously with ferroboron size decreasing. At the initial braking speed of 100 km h(-1), the friction coefficient and wear rate increase with ferroboron size reducing, and the wear of the material is mainly abrasive wear. At a large initial braking speed (>= 150 km h(-1)), with the decrease of the ferroboron size, the friction coefficient decreases and the wear rate increases, and the wear is mainly the mixture of oxidation wear and adhesive wear.

引用

页数：10

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