Tribological properties and thermal-stress analysis of C/C-SiC composites during braking

被引：27

作者：

Chen, Guan-yi ^{[1
]}

Li, Zhuan ^{[1
]}

Xiao, Peng ^{[1
]}

Ouyang, Xi ^{[2
]}

Ma, Wen-jie ^{[3
]}

Li, Peng-tao ^{[2
]}

Li, Jin-wei ^{[2
]}

Li, Yang ^{[2
]}

机构：

[1] Cent S Univ, Natl Key Lab Sci & Technol Natl Def High Strength, Changsha 410083, Hunan, Peoples R China

[2] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

[3] Inner Mongolia First Machinery Grp Co Ltd, Inst Sci, Baotou 014030, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2019年 / 29卷 / 01期

基金：

中国国家自然科学基金;

关键词：

C/C-SiC composites; brake; tribological behavior; temperature field; thermal-stress field; MICROSTRUCTURE; MODEL;

D O I：

10.1016/S1003-6326(18)64921-0

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The tribological properties and thermal-stress behaviors of C/C-SiC composites during braking were investigated aiming to simulate braking tests of high-speed trains. The temperature and structural fields of C/C-SiC composites during braking were fully coupled and simulated with ANSYS software. The results of tribological tests indicated that the C/C-SiC composites showed excellent static friction coefficient (0.68) and dynamic friction coefficient (average value of 0.36). The highest temperature on friction surface was 445 degrees C. The simulated temperature field showed that the highest temperature which appeared on the friction surface during braking was about 463 degrees C. Analysis regarding thermal-stress field showed that the highest thermal-stress on friction surface was 11.5 MPa. The temperature and thermal-stress distributions on friction surface during braking showed the same tendency.

引用

页码：123 / 131

页数：9

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