Microstructure and polarization behavior of Ni/WC plus GO (graphene oxide) composite cladding fusion coating

doi:10.1515/ijmr-2020-7765

	Microstructure and polarization behavior of Ni/WC plus GO (graphene oxide) composite cladding fusion coating
	Li, Ouyang 2; Yang, Guirong 2; Song, Wenming 3; Gao, Dawen 2; Sun, Xianming 1
刊名	INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
	2021
卷号	112 期号:4 页码:308-320
关键词	Ni-based composite cladding fusion coating Graphene oxide Vacuum cladding technology Complex phase carbide Polarization mechanism
ISSN号	1862-5282
DOI	10.1515/ijmr-2020-7765
英文摘要	Ni/WC/graphene oxide (GO) composite cladding fusion coatings were fabricated through the vacuum cladding technique on a medium carbon structure steel (45# steel) substrate whose carbon content was 0.45 +/- 0.03%. The microstructural characteristics, phase composition, and electrochemical polarization characteristics of the composite cladding fusion coatings were analyzed with scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and the electrochemical workstation CHI660E. Results show that the microstructure was compact and was micro-crack free, and without inclusions or other defects. It was comprised of four micro-zones, namely, the composite, transition, diffusion fusion, and diffusion-affected zones with thicknesses of approximately 4 mm, 1 mm, 20 mu m, and 250 mu m, respectively. The main phases of the composite coating were gamma-Ni solid solution, WC, Cr7C3, Ni2.9Cr0.7Fe0.36, Cr23C6, Ni3Fe, Ni3Si, Ni3B, W2C, and C. The self-corrosion potential of the composite coatings had increased by 0.3269 V compared with that of the substrate, and the corrosion current density of the composite coatings had decreased by nearly two orders of magnitude. The Ni-based solid solution region with relatively high C and Cr contents was difficult to dissolve.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	WALTER DE GRUYTER GMBH
WOS记录号	WOS:000642341300007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148272]
专题	材料科学与工程学院
作者单位	1.Wuhan Univ Technol, Wuhan, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou, Peoples R China; 3.Lanpec Technol Ltd, Lanzhou, Peoples R China;
推荐引用方式 GB/T 7714	Li, Ouyang,Yang, Guirong,Song, Wenming,et al. Microstructure and polarization behavior of Ni/WC plus GO (graphene oxide) composite cladding fusion coating[J]. INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,2021,112(4):308-320.
APA	Li, Ouyang,Yang, Guirong,Song, Wenming,Gao, Dawen,&Sun, Xianming.(2021).Microstructure and polarization behavior of Ni/WC plus GO (graphene oxide) composite cladding fusion coating.INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,112(4),308-320.
MLA	Li, Ouyang,et al."Microstructure and polarization behavior of Ni/WC plus GO (graphene oxide) composite cladding fusion coating".INTERNATIONAL JOURNAL OF MATERIALS RESEARCH 112.4(2021):308-320.