Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites

doi:10.1016/j.apsusc.2020.148367

IMR OpenIR

	Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites
	Liu, J. H.1,2; Yan, J. X.1,2; Liu, Y. D.1,2; Li, W. H.1,2; Gu, W. S.1,2; Pei, Z. L.1; Gong, J.1; Sun, C.1
通讯作者	Pei, Z. L.(zlpei@imr.ac.cn) ; Sun, C.(csun@imr.ac.cn)
	2021-03-01
发表期刊	APPLIED SURFACE SCIENCE
ISSN	0169-4332
卷号	541 页码:14
摘要	Ni-18 at.% Mo/21 vol% diamond composites are prepared on steel substrates by electrodeposition. Influence of annealing temperature (450-750 degrees C) on the microstructure, phase composition, hardness, tribological properties and corrosion resistance of composites is analyzed. Results show that matrix grain grows from 7 nm to 38.4 nm with the increasing temperature. Wide and amorphous particle/matrix (P/M) interface is observed at 450 degrees C due to Mo segregation, improving hardness (11.3 GPa) and wear resistance of composites. However, the uneven distribution of composition at P/M interface leads to the occurrence of local corrosion and the reduction of corrosion resistance. MoNi and Mo2C intermetallics are precipitated in composites while the temperature is >480 degrees C and 681 degrees C, respectively. Phase transition decreases Mo segregation at P/M interface and causes the disappearance of amorphous P/M interface, which inhibits local corrosion and improves corrosion resistance. Meanwhile, the consumption of Mo, the graphitization of diamonds and the growth of grains cause the softening of composites. However, composite annealed at 750 degrees C with the lowest hardness (6.2 GPa) has the lowest wear rate (3.4 x 10(-6) mm(3) N-1 m(-1)), which breaks the traditional Archard model attributing to the lubrication of Mo2C.
关键词	Microstructure Particle/matrix interface Phase transition Tribological properties Corrosion resistance
资助者	National Science and Technology Major Project
DOI	10.1016/j.apsusc.2020.148367
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	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000608921900001
出版者	ELSEVIER
引用统计	被引频次：17[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/321006/159048
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.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, J. H.,Yan, J. X.,Liu, Y. D.,et al. Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites[J]. APPLIED SURFACE SCIENCE,2021,541:14.
APA	Liu, J. H..,Yan, J. X..,Liu, Y. D..,Li, W. H..,Gu, W. S..,...&Sun, C..(2021).Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites.APPLIED SURFACE SCIENCE,541,14.
MLA	Liu, J. H.,et al."Impact of annealing temperature on the microstructure, microhardness, tribological properties and corrosion resistance of Ni-Mo/diamond composites".APPLIED SURFACE SCIENCE 541(2021):14.