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	Tribological properties of self-lubricating NiAl/Mo-based composites containing AgVO3 nanowires
	Liu, Eryong ; Gao, Yimin ; Bai, Yaping ; Yi, Gewen ; Wang, Wenzhen ; Zeng, Zhixiang ; Jia, Junhong
刊名	MATERIALS CHARACTERIZATION
	2014
卷号	97页码:116
中文摘要	Silver vanadate (AgVO3) nanowires were synthesized by hydrothermal method and self-lubricating NiAl/Mo-AgVO3 composites were fabricated by powder metallurgy technique. The composition and microstructure of NiAl/Mo-based composites were characterized and the tribological properties were investigated from room temperature to 900 degrees C. The results showed that NiAl/Mo-based composites were consisted of nanocrystalline B2 ordered NiAl matrix, Al2O3, Mo2C, metallic Ag and vanadium oxide phase. The appearance of metallic Ag and vanadium oxide phase can be attributed to the decomposition of AgVO3 during sintering. Wear testing results confirmed that NiAl/Mo-based composites have excellent tribological properties over a wide temperature range. For example, the friction coefficient and wear rate of NiAl/Mo-based composites containing AgVO3 were significantly lower than the composites containing only metallic Mo or AgVO3 lubricant when the temperature is above 300 degrees C, which can be attributed to the synergistic lubricating action of metallic Mo and AgVO3 lubricants. Furthermore, Raman results indicated that the composition on the worn surface of NiAl-based composites was self-adjusted after wear testing at different temperatures. For example, Ag3VO4 and Fe3O4 lubricants were responsible for the improvement of tribological properties at 500 degrees C, AgVO3, Ag3VO4 and molybdate for 700 degrees C, and AgVO3 and molybdate for 900 degrees C of NiAl-based composites with the addition of metallic Mo and AgVO3. (C) 2014 Elsevier Inc. All rights reserved.
公开日期	2015-09-20
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/11701]
专题	宁波材料技术与工程研究所_2014专题
推荐引用方式 GB/T 7714	Liu, Eryong,Gao, Yimin,Bai, Yaping,et al. Tribological properties of self-lubricating NiAl/Mo-based composites containing AgVO3 nanowires[J]. MATERIALS CHARACTERIZATION,2014,97:116.
APA	Liu, Eryong.,Gao, Yimin.,Bai, Yaping.,Yi, Gewen.,Wang, Wenzhen.,...&Jia, Junhong.(2014).Tribological properties of self-lubricating NiAl/Mo-based composites containing AgVO3 nanowires.MATERIALS CHARACTERIZATION,97,116.
MLA	Liu, Eryong,et al."Tribological properties of self-lubricating NiAl/Mo-based composites containing AgVO3 nanowires".MATERIALS CHARACTERIZATION 97(2014):116.

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