您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 6    December 2001

[PDF Download]    [Flash Online]

    

Dry friction and wear properties of intermetallics MoSi2
ZHANG Hou-an(张厚安)1,2, LIU Xin-yu(刘心宇)2,3,
CHEN Ping(陈  平)1, TANG Guo-ning(唐果宁)1

1. Department of Mechanical Engineering and Automation,
Xiangtan Polytechnic University,Xiangtan 411201, P.R.China;
2. Department of Materials Science and Engineering,
Centeral South University,Changsha 410083, P.R.China;
3. Guilin Institute of Electric Technology, Guilin 541004, P.R.China

Abstract:The dry friction and wear properties of intermetallics MoSi2 against 45 steel under different loads were investigated with M-2 type friction and wear tester. Scanning electric microscope (SEM) equipment with microprobe was employed to analyze the morphology of the friction surface. Results show that the dry friction and wear properties are deeply affected by load. The wear rate of MoSi2 at the load of  80Nis the maximum which is 36.1μg/m. On the condition of the load of 150N, MoSi2 material has the better friction and wear properties: friction coefficient is 0.28 and wear rate is 10.6μg/m. With the load increasing, the main friction mechanisms change from microslip and plastic deformation to adhesive effect, and the main wear mechanisms change from plough-groove wear and oxidationfatigue wear to adhesive wear.

 

Key words:  molybdenum disilicide; friction and wear mechanism; dry friction

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn