Research on high-temperature dry sliding friction wear behavior of Ca-Ti modified high boron high speed steel

被引：29
|
作者：
Ren, Xiangyi [1 ]
Fu, Hanguang [2 ]
Xing, Jiandong [1 ]
Yi, Yanliang [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, 28 Xianning West Rd, Xian 710049, Shaanxi, Peoples R China
[2] Beijing Univ Technol, Sch Mat Sci & Engn, Res Inst Adv Mat Proc Technol, Beijing 100124, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2019年 / 132卷
基金：
中国国家自然科学基金;
关键词：
High boron high speed steel; Modification; High temperature wear; Wear rate; MECHANICAL-PROPERTIES; RARE-EARTH; MICROSTRUCTURE; ALLOY; ADDITIONS; COMPOSITES; TITANIUM; MO;
D O I：
10.1016/j.triboint.2018.12.009
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this work, the high temperature wear behavior of Ca-Ti modified high-boron high-speed steel is investigated. The results indicate that the microstructure of the alloy consists of matrix and eutectic borocarbide. Ca-Ti modification aims at improving the stability of borocarbide under wear condition through making the distribution of borocarbide more isolated. The wear experiment revealed that the wear resistance of high-boron high-speed steel is much better than that of T15 steel due to the better oxidization resistance and mechanical property of matrix and borocarbide respectively. Under 25 degrees C and 200 degrees C, main wear mechanism of high-boron high-speed steel is adhesive spalling. When the temperature is 400 degrees C, the mechanism becomes combination of adhesive spalling and oxidization. Under 600 degrees C, the mechanism is oxidation.
引用
收藏
页码：165 / 176
页数：12
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