Effects of remelting temperature on the microstructure evolution of Ni60/WC directional structure coating

doi:10.11990/jheu.202104040

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	Effects of remelting temperature on the microstructure evolution of Ni60/WC directional structure coating
	Yang, Xiaotian 2,3; Wei, Hengli 2; Zhou, Jun 2; Wang, Xinhua 2; Zeng, Rong 2; Yang, Qiangbin 1
刊名	Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University
	2022-04-05
卷号	43 期号:4 页码:587-592
关键词	Composite coatings Flame spraying Grain boundaries Microstructure Nickel compounds Reinforcement Remelting Scanning electron microscopy Tungsten carbide Vickers hardness Composites coating Cooling technology Directional structure Forced cooling Grain-boundaries Induction remelting Microstructure evolutions Microstructure performance Temperature increase Tungsten carbide particles
ISSN号	1006-7043
DOI	10.11990/jheu.202104040
英文摘要	To improve the microstructure performance of the directional structure of the composite coating, the tungsten carbide-reinforced Ni60/WC directional structure coating is prepared by using flame spraying, induction remelting, and forced cooling technologies. The microstructure, phase, and microhardness of the coating are analyzed comparatively using a metallographic microscope, scanning electron microscope, X-ray diffractometer, and microhardness tester. The effects of induction remelting temperature on the microstructure evolution and properties of the directional structure of the composite coating are investigated, thus revealing the formation and strengthening mechanisms of the coating. Results show that, as the remelting temperature increases, the microstructure of the coating changes from fine and condensed microstructure at low remelting temperature to oriented microstructure growing along heat flow at high remelting temperature. When the temperature is 1 200 , the oriented structure of the coating becomes much more apparent. The additive dissolves at first, diffuses in grain boundary to form network eutectic, gradually transforms into a massive structure, and finally fills and strengthens the grain boundary again at 1 200 . The condensed structure of the coating at low temperatures increases the hardness of the coating's cross-section. The coating whose directional structure was formed at a high temperature of 1 200 had the highest level of hardness. Appropriate remelting temperature can effectively improve the properties of WC reinforced Ni60 directional structure coating. Copyright ©2022 Journal of Harbin Engineering University.
语种	中文
出版者	Editorial Board of Journal of Harbin Engineering
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158371]
专题	学报编辑部
作者单位	1.Chongqing Key Laboratory of Environmental Materials and Remediation Technology, Chongqing University of Arts and Sciences, Chongqing; 402160, China 2.School of Materials and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Wenzhou Pump and Valve Engineering Research Institute, Lanzhou University of Technology, Wenzhou; 325105, China;
推荐引用方式 GB/T 7714	Yang, Xiaotian,Wei, Hengli,Zhou, Jun,et al. Effects of remelting temperature on the microstructure evolution of Ni60/WC directional structure coating[J]. Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,2022,43(4):587-592.
APA	Yang, Xiaotian,Wei, Hengli,Zhou, Jun,Wang, Xinhua,Zeng, Rong,&Yang, Qiangbin.(2022).Effects of remelting temperature on the microstructure evolution of Ni60/WC directional structure coating.Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,43(4),587-592.
MLA	Yang, Xiaotian,et al."Effects of remelting temperature on the microstructure evolution of Ni60/WC directional structure coating".Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University 43.4(2022):587-592.