Tribological behavior of Ti3SiC2 and Ti3SiC2/Pb composites sliding against Ni-based alloys at elevated temperatures | |
Department | 先进润滑与防护材料研究发展中心 |
Zhang, Rui1,2; Feng, Keqin1; Meng JH(孟军虎)2; Liu FY(刘福燕)2; Ren SF(任书芳)2; Hai WX(海万秀)2; Zhang AJ(张爱军)2; Meng JH(孟军虎) | |
The second department | 固体润滑国家重点实验室 |
2016 | |
Source Publication | Ceramics International |
ISSN | 0272-8842 |
Volume | 42Issue:6Pages:7107-7117 |
Abstract | The Ti3SiC2 and Ti3SiC2/Pb composites were tested under dry sliding conditions against Ni-based alloys (Inconel 718) at elevated temperatures up to 800 °C using a pin-on-disk tribometer. Detailed tribo-chemical changes of Pb on sliding surface were discussed. It was found that the tribological behavior were insensitive to the temperature from 25 °C (RT) to 600 °C (friction coefficient ≈0.61–0.72, wear rate ≈10−3 mm3 N m−1). An amount of Pb in the composites played a key role in lubricating with the temperature below 800 °C. The friction coefficient (≈0.22) and wear rate (≈10−7 mm3 N m−1) at elevated temperatures were both decreased by the added PbO. The wear mechanisms of Ti3SiC2/Pb-Inconel 718 tribo-pair at elevated temperatures were believed to be the combined effect of abrasive wear and tribo-oxidation wear. During the sliding, two oxidization reactions proceed, 2Pb+O2=2PbO (below 600 °C) and 6PbO+O2=2Pb3O4 (800 °C). The friction coefficient and wear rate of the composites were reduced due to the self-lubricating effect of the tribo-oxidation products. |
Keyword | Electron Microscopy Surface Analysis Elevated Temperature Sliding Wear Wear Test |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.ceramint.2016.01.099 |
Funding Organization | the “Hundred Talents Program” (Junhu Meng) of Chinese Academy of Sciences;the National Natural Science Foundation of China (51405475) |
Indexed By | SCI |
If | 2.986 |
Language | 英语 |
Funding Project | 金属基高温润滑材料组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19981 |
Collection | 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 固体润滑国家重点实验室(LSL) |
Corresponding Author | Feng, Keqin; Meng JH(孟军虎) |
Affiliation | 1.Sichuan Univ, Sch Mfg Sci & Engn, Chengdu 610065, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Zhang, Rui,Feng, Keqin,Meng JH,et al. Tribological behavior of Ti3SiC2 and Ti3SiC2/Pb composites sliding against Ni-based alloys at elevated temperatures[J]. Ceramics International,2016,42(6):7107-7117. |
APA | Zhang, Rui.,Feng, Keqin.,Meng JH.,Liu FY.,Ren SF.,...&孟军虎.(2016).Tribological behavior of Ti3SiC2 and Ti3SiC2/Pb composites sliding against Ni-based alloys at elevated temperatures.Ceramics International,42(6),7107-7117. |
MLA | Zhang, Rui,et al."Tribological behavior of Ti3SiC2 and Ti3SiC2/Pb composites sliding against Ni-based alloys at elevated temperatures".Ceramics International 42.6(2016):7107-7117. |
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