Evolution Characteristics of Microstructure of Ni-Based Alloy Coatings and Their Properties under Complex Process

CORC > 兰州理工大学 > 兰州理工大学 > 学报编辑部

	Evolution Characteristics of Microstructure of Ni-Based Alloy Coatings and Their Properties under Complex Process
	Yang, Xiaotian 1; Wang, Pengchun 1; Li, Xia 2; Lu, Yang 1; Xiao, Rongzhen 1
刊名	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
	2017-03-01
卷号	46 期号:3 页码:693-698
关键词	Cooling Crystal structure Friction Microhardness Microstructure Nickel alloys Plasma spraying Remelting Wear of materials Wear resistance Evolution characteristics Forced cooling Friction and wear Friction wear properties High frequency induction Microhardness distribution Ni-based alloy coatings Supersonic plasma spraying
ISSN号	1002185X
英文摘要	Ni60 coatings were prepared by supersonic plasma spraying on 45 # steel substrate, and they were subsequently treated by induction remelting and induction remelting+forced cooling, separately. The microstructure, microhardness distribution and friction-wear properties of the coatings were analyzed by OM, SEM, XRD, microhardness tester and pin-on-disk friction wear tester to investigate the evolution characteristic of microstructure of Ni60 alloy coatings and their properties. The results indicate that there are great differences in microstructure for the three kinds of coatings. The remelting treatment only by high-frequency induction refines the microstructures of the coating, while the coating remelted by induction remelting+forced cooling forms directional crystal structure of epitaxial growth. The hardness of the sprayed coating exhibits a downward trend from inside to outside, and the hardness of the other two coatings slightly increases from inside to outside; therefore, despite the high average hardness of the sprayed coating, the surface hardness is lower than that of the other two coatings. The three coatings all have well wear resistance, but subsequent treatment increases the friction coefficient of the coating obviously, and wear-resisting performance is significantly enhanced. Particularly, the coating with forced cooling shows excellent wear resistance, and its average wear rate is lower about 8.5 times than that of the spraying coating and about 2 times than that of the induction remelting coating. © 2017, Science Press. All right reserved.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	Science Press
WOS记录号	WOS:000398248200021
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150642]
专题	学报编辑部材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Lanzhou Jiaotong University, Lanzhou; 730070, China
推荐引用方式 GB/T 7714	Yang, Xiaotian,Wang, Pengchun,Li, Xia,et al. Evolution Characteristics of Microstructure of Ni-Based Alloy Coatings and Their Properties under Complex Process[J]. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,2017,46(3):693-698.
APA	Yang, Xiaotian,Wang, Pengchun,Li, Xia,Lu, Yang,&Xiao, Rongzhen.(2017).Evolution Characteristics of Microstructure of Ni-Based Alloy Coatings and Their Properties under Complex Process.Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,46(3),693-698.
MLA	Yang, Xiaotian,et al."Evolution Characteristics of Microstructure of Ni-Based Alloy Coatings and Their Properties under Complex Process".Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering 46.3(2017):693-698.