陈国清

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:材料科学与工程学院副院长

性别:男

毕业院校:哈尔滨工业大学

学位:博士

所在单位:材料科学与工程学院

办公地点:铸造中心208

联系方式:0411-84707970

电子邮箱:gqchen@dlut.edu.cn

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Studies on Dynamic Tribology Properties of Friction Materials by Using an Approximate In Situ Observation for Worn Surfaces

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论文类型:期刊论文

发表时间:2018-09-01

发表刊物:JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME

收录刊物:SCIE

卷号:140

期号:5

ISSN号:0742-4787

关键字:dynamic; tribology properties; in situ method; worn surfaces; models

摘要:This paper primarily focused on the dynamic tribology properties of one certain nonasbestos organic (NAO) friction material by using an approximate in situ method. This study was performed through a pad-on-disk type friction tester under different temperature conditions. Results showed that temperature has a significant effect on the dynamic tribology performance. At 100 degrees C, friction coefficient and wear rate after the running-in stage varied little with time. At 250 degrees C, friction coefficient after the running-in stage increased gradually and then tended to be stable, while wear rate decreased gradually. From 100 to 350 degrees C, friction coefficient increased first as a function of temperature, but decreased sharply when the temperature was over 250 degrees C. Simultaneously, wear rate also increased sharply over 250 degrees C. Additionally, three dynamic evolution models of worn surfaces corresponding to different cases were established.