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Tribo-oxidation of Self-mated Ti3SiC2 at Elevated Temperatures and Low Speed

文献类型：期刊论文

作者Hai WX(海万秀)1,2; Ren SF(任书芳)1; Meng JH(孟军虎)1; Lv JJ(吕晋军)1
刊名Tribology Letters
出版日期2012
卷号48期号:3页码:425-432
关键词Ti3SiC2 Elevated temperatures Tribo-oxidation Wear mechanisms XPS
ISSN号1023-8883
通讯作者吕晋军
英文摘要The tribological behavior of self-mated Ti3SiC2 is investigated from ambient temperature to 800 °C at a sliding speed of 0.01 m/s in air. The results show that at the temperatures lower than 300 °C, friction coefficient and wear rates are as high as 0.95 and 10−3 mm3/N m, respectively. With the temperature increasing to 600 °C, both the friction coefficient and wear rates show consecutive decrease. At 700 and 800 °C, friction coefficient and wear rates are 0.5 and 10−6 mm3/N m, respectively. According to the wear mechanism, the tribological behavior of Ti3SiC2 can be divided into three regimes: mechanical wear-dominated regime from ambient temperature to 300 °C characterized by pullout of grains; mixed wear regime (mechanical wear and oxidation wear) from 400 to 600 °C; and tribo-oxidation-dominated wear regime above 700 °C. The tribo-oxides on the worn surfaces involve oxides of Si and Ti. And, species transformation occurs to these two oxides with the increasing temperature. In the competition oxidation of elements Ti and Si, Si is preferably oxidized because of its high active position in the crystal structure. Additionally, plastic flow is another notable characteristic for the tribological behavior of self-mated Ti3SiC2.
学科主题材料科学与物理化学
收录类别SCI
资助信息the National Natural Science Foundation of China (51075382);the Hundred Talent Program (Junhu Meng) of the Chinese Academy of Sciences
语种英语
WOS记录号WOS:000310020900015
公开日期2013-07-12
源URL[http://210.77.64.217/handle/362003/3496]  
专题兰州化学物理研究所_固体润滑国家重点实验室
兰州化学物理研究所_先进润滑与防护材料研究发展中心
作者单位1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714		 Hai WX,Ren SF,Meng JH,et al. Tribo-oxidation of Self-mated Ti3SiC2 at Elevated Temperatures and Low Speed[J]. Tribology Letters,2012,48(3):425-432.
APA Hai WX,Ren SF,Meng JH,&Lv JJ.(2012).Tribo-oxidation of Self-mated Ti3SiC2 at Elevated Temperatures and Low Speed.Tribology Letters,48(3),425-432.
MLA Hai WX,et al."Tribo-oxidation of Self-mated Ti3SiC2 at Elevated Temperatures and Low Speed".Tribology Letters 48.3(2012):425-432.

入库方式： OAI收割

来源：兰州化学物理研究所

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