| Tribo-oxidation of Self-mated Ti3SiC2 at Elevated Temperatures and Low Speed | |
| Department | 先进润滑与防护材料研究发展中心 |
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; Lv JJ(吕晋军)
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| The second department | 固体润滑国家重点实验室 |
| 2012 | |
| Source Publication | Tribology Letters
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| ISSN | 1023-8883 |
| Volume | 48Issue:3Pages:425-432 |
| Abstract | 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. |
| Keyword | Ti3sic2 Elevated Temperatures Tribo-oxidation Wear Mechanisms Xps |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1007/s11249-012-0036-3 |
| Funding Organization | the National Natural Science Foundation of China (51075382);the Hundred Talent Program (Junhu Meng) of the Chinese Academy of Sciences |
| Indexed By | SCI |
| If | 1.743 |
| Language | 英语 |
| Funding Project | 金属基高温润滑材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3496 |
| Collection | 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | Lv JJ(吕晋军) |
| Affiliation | 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 |
| Recommended Citation 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,&吕晋军.(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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 425-432.PDF（922KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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