High Temperature Oxidation and Tribological Behaviors of NiCrAl-Graphite Self-Lubricating Composites

doi:10.1007/s40195-020-01188-9

CORC > 金属研究所 > 中国科学院金属研究所

	High Temperature Oxidation and Tribological Behaviors of NiCrAl-Graphite Self-Lubricating Composites
	Kong, Xuan 1; Liu, Yang 2; Chen, Minghui 1; Zhang, Tao 1; Wang, Fuhui 1
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2021-02-09
页码	13
关键词	Oxidation Self-lubricating composites Wear Graphite
ISSN号	1006-7191
DOI	10.1007/s40195-020-01188-9
通讯作者	Liu, Yang(liuyang@imr.ac.cn) ; Chen, Minghui(mhchen@mail.neu.edu.cn)
英文摘要	Nickel-graphite self-lubricating composites are a promising candidate to be used in turbine constructions that are usually exposed to high temperature oxidation and wear. However, the high-temperature stability of graphite as well as the effect that the oxide scale will play on the following wear process are still yet in debate. In this work, oxidation behavior of a NiCrAl-graphite composite and the subsequent friction and wear performances were studied. Results indicate that graphite is stable in the composites after oxidation at T <= 400 degrees C for 300 h, which contributes synergistically with the thin oxide film to self-lubrication. The friction coefficient is below 0.20 and the wear rate is similar to 1.43 x 10(-5) mm(3) N-1 m(-1). The composite has the highest friction coefficient and wear rate when it was suffered from the high temperature oxidation at 500 degrees C. Once it was oxidized at 600 degrees C, a glaze layer would develop during the subsequent sliding. It plays a positive role in improving tribological properties though in the absence of lubricant phase of graphite, with to be exactly the friction coefficient and wear rate reduced by 13% and 21%, respectively, in comparison with the case of oxidation at 500 degrees C.
资助项目	Fundamental Research Funds for the Central Universities[N180212008] ; Fundamental Research Funds for the Central Universities[N181003001] ; Ministry of Industry and Information Technology Project[MJ-2017-J-99]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号	WOS:000616448400001
资助机构	Fundamental Research Funds for the Central Universities ; Ministry of Industry and Information Technology Project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160587]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Yang; Chen, Minghui
作者单位	1.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Kong, Xuan,Liu, Yang,Chen, Minghui,et al. High Temperature Oxidation and Tribological Behaviors of NiCrAl-Graphite Self-Lubricating Composites[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:13.
APA	Kong, Xuan,Liu, Yang,Chen, Minghui,Zhang, Tao,&Wang, Fuhui.(2021).High Temperature Oxidation and Tribological Behaviors of NiCrAl-Graphite Self-Lubricating Composites.ACTA METALLURGICA SINICA-ENGLISH LETTERS,13.
MLA	Kong, Xuan,et al."High Temperature Oxidation and Tribological Behaviors of NiCrAl-Graphite Self-Lubricating Composites".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):13.