Research Progress of Electrical Explosion Spraying Method

	Research Progress of Electrical Explosion Spraying Method
	Yan Weiliang 1; Wang Xudong 1; Zhou Hui 1,2; Zhu Liang 1,2
刊名	RARE METAL MATERIALS AND ENGINEERING
	2021-08
卷号	50 期号:8 页码:3020-3030
关键词	electrical explosion spray spray forming coating metallurgical bonding thermal spraying
ISSN号	1002-185X
英文摘要	Electrical explosion spraying is a new method of thermal spraying, which uses high voltage to pulse discharge on the spraying material, and the instantaneous high current heats and explodes it. High temperature particles are produced and sprayed to the surface of substrate with shock wave to form coating. It is characterized by high particle velocity and small equipment size, which is suitable for spraying on the inner wall of the cavity. In this paper, the development status of electrical explosion spraying method is reviewed, which has experienced free, directional and constrained electric explosion spraying. The free spraying electrode is directly contacted, which causes serious burning damage and limits the pipe diameter. It is only used for the inner wall of small diameter pipe/hole. Ceramic materials are commonly used in the confinement chamber of directional spraying, which are easy to break or ablate during explosive impact. These problems can be solved by using ablation material to make the confinement cavity and introducing current into the gas discharge in constrained spraying. Secondly, the characteristics of the coating prepared by this method are described, that is, the coating is metallurgically bonded with the substrate. The compact coating with ultra-fine grain and nano-crystalline structure is formed, which has good wear resistance, corrosion resistance and high hardness. Then the relationship between the process parameters and the coating is given. The energy density and spraying distance are the main factors affecting the coating performance. Finally, the problems to be studied in the future are analyzed, and the development trend of electric explosive spraying method is prospected.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000695646700048
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148621]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Yan Weiliang,Wang Xudong,Zhou Hui,et al. Research Progress of Electrical Explosion Spraying Method[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(8):3020-3030.
APA	Yan Weiliang,Wang Xudong,Zhou Hui,&Zhu Liang.(2021).Research Progress of Electrical Explosion Spraying Method.RARE METAL MATERIALS AND ENGINEERING,50(8),3020-3030.
MLA	Yan Weiliang,et al."Research Progress of Electrical Explosion Spraying Method".RARE METAL MATERIALS AND ENGINEERING 50.8(2021):3020-3030.