Effects of Mo content on the grain size, hardness and anti-wear performance of electrodeposited nanocrystalline and amorphous Ni-Mo alloys

doi:10.1016/j.surfcoat.2020.126476

IMR OpenIR

	Effects of Mo content on the grain size, hardness and anti-wear performance of electrodeposited nanocrystalline and amorphous Ni-Mo alloys
	Liu, J. H.1,2; Yan, J. X.1,2; Pei, Z. L.2; Gong, J.2; Sun, C.2
通讯作者	Pei, Z. L.(zlpei@imr.ac.cn) ; Sun, C.(csun@imr.ac.cn)
	2020-12-25
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	404 页码:11
摘要	Ni-Mo alloys with various Mo contents are prepared by electrodeposition in sulfate-citrate acid solutions under different temperature, pH, stirring rate, current density and MoO42- concentration. Influences of Mo content on the grain size, hardness and wear resistance are studied. Results show that the increase in Mo content decreases the deposition rate of Ni-Mo alloys prepared at a constant temperature. As-prepared alloys are composed of nanocrystalline Ni(Mo) solid solution when Mo is less than 24.4 at.%. The grain size of alloys decreases with the increment of Mo content. Amorphous phase appears in deposits when Mo content exceeds 24.4-27.3 at.%. Hardness and wear resistance of alloys firstly increases with Mo content, and then it has a decline due to the formation of amorphous. Additionally, Hall-Petch (HP) relationship is found in deposits as the grain size decreases from 12.4 nm to 7.9 nm, and then the inverse HP relationship appears with the further decrease in grain size to 1.5 nm. Meanwhile, traditional Archard law is found in Ni-Mo alloys with Mo content in the range of 6.3-27.3 at.%. Additionally, HP breakdown causes a variation of wear resistance at the critical grain size of 7.9 nm.
关键词	Electrodeposition Deposition rate Hardness Hall-Petch Wear resistance Archard law
资助者	National Science and Technology Major Project
DOI	10.1016/j.surfcoat.2020.126476
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[2017-VII-0012-0108]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000597889400040
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158845
专题	中国科学院金属研究所
通讯作者	Pei, Z. L.; Sun, C.
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 Jinzhai Rd, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Shichangzu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, J. H.,Yan, J. X.,Pei, Z. L.,et al. Effects of Mo content on the grain size, hardness and anti-wear performance of electrodeposited nanocrystalline and amorphous Ni-Mo alloys[J]. SURFACE & COATINGS TECHNOLOGY,2020,404:11.
APA	Liu, J. H.,Yan, J. X.,Pei, Z. L.,Gong, J.,&Sun, C..(2020).Effects of Mo content on the grain size, hardness and anti-wear performance of electrodeposited nanocrystalline and amorphous Ni-Mo alloys.SURFACE & COATINGS TECHNOLOGY,404,11.
MLA	Liu, J. H.,et al."Effects of Mo content on the grain size, hardness and anti-wear performance of electrodeposited nanocrystalline and amorphous Ni-Mo alloys".SURFACE & COATINGS TECHNOLOGY 404(2020):11.