Microstructure characteristics of Ni/WC composite cladding coatings

doi:10.1007/s12613-016-1226-z

	Microstructure characteristics of Ni/WC composite cladding coatings
	Yang, Gui-Rong 2; Huang, Chao-peng 2; Song, Wen-ming 2,3; Li, Jian 1; Lu, Jin-jun 4; Ma, Ying 2; Hao, Yuan 2
刊名	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
	2016-02
卷号	23 期号:2 页码:184-192
关键词	cladding composite coatings microstructure characteristics formation mechanisms hardness
ISSN号	1674-4799
DOI	10.1007/s12613-016-1226-z
英文摘要	A multilayer tungsten carbide particle (WCp)-reinforced Ni-based alloy coating was fabricated on a steel substrate using vacuum cladding technology. The morphology, microstructure, and formation mechanism of the coating were studied and discussed in different zones. The microstructure morphology and phase composition were investigated by scanning electron microscopy, optical microscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy. In the results, the coating presents a dense and homogeneous microstructure with few pores and is free from cracks. The whole coating shows a multilayer structure, including composite, transition, fusion, and diffusion-affected layers. Metallurgical bonding was achieved between the coating and substrate because of the formation of the fusion and diffusion-affected layers. The Ni-based alloy is mainly composed of (gamma)-Ni solid solution with finely dispersed Cr7C3/Cr23C6, CrB, and Ni+Ni3Si. WC particles in the composite layer distribute evenly in areas among initial Ni-based alloying particles, forming a special three-dimensional reticular microstructure. The macrohardness of the coating is HRC 55, which is remarkably improved compared to that of the substrate. The microhardness increases gradually from the substrate to the composite zone, whereas the microhardness remains almost unchanged in the transition and composite zones.
资助项目	Natural Science Foundation of Gansu Province, China[1208RJZA189]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000369238200009
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33791]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Yang, Gui-Rong
作者单位	1.Wuhan Res Inst Mat Protect, Wuhan 430030, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 3.Lanzhou Petr Machinery Inst, Lanzhou 730000, Peoples R China 4.NW Univ Xian, Coll Chem & Mat Sci, Xian 710069, Peoples R China
推荐引用方式 GB/T 7714	Yang, Gui-Rong,Huang, Chao-peng,Song, Wen-ming,et al. Microstructure characteristics of Ni/WC composite cladding coatings[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2016,23(2):184-192.
APA	Yang, Gui-Rong.,Huang, Chao-peng.,Song, Wen-ming.,Li, Jian.,Lu, Jin-jun.,...&Hao, Yuan.(2016).Microstructure characteristics of Ni/WC composite cladding coatings.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,23(2),184-192.
MLA	Yang, Gui-Rong,et al."Microstructure characteristics of Ni/WC composite cladding coatings".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 23.2(2016):184-192.