Analysis of fatigue properties for plunger with different post-fused thermal spray

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	Analysis of fatigue properties for plunger with different post-fused thermal spray
	Zhao, Zhi-Ping 1,2; Li, Xin-Yong 1; Li, You-Tang 2; Duan, Hong-Yan 2; Wei, Wei 2
刊名	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
	2012-06-01
卷号	33 期号:SUPPL.页码:86-89
关键词	Bending tests Coatings Fatigue testing Metal cladding Microstructure Scanning electron microscopy Thermal spraying X ray spectroscopy 40Cr steel Coating microstructures Different post-fusing treatment Energy dispersive X ray spectroscopy Fatigue lifetime Fatigue properties Fracture surfaces Fusing-process Fusion time Heating time Holding time Lifetime Ni-based self-fluxing alloys Nickel powders Plunger Rotational bending Small specimen Thermal spray Useful life
ISSN号	10096264
英文摘要	In order to prolong the useful life of "plunger" that was thermally sprayed with Ni-based self-fluxing alloy coating on 40Cr steel substrate, four types of thermally sprayed specimens which differed from heating time in the fusing process were prepared. The specimens has the same material as "plunger". Rotational bending fatigue tests were carried out, and coating microstructure of fracture surfaces were observed with the scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy(EDX). The results show that specimens fused for shorter time exhibit has lower fatigue lifetime because both bonding of coating and substrate and cohesion of coating with nickel powder are still granular due to not completely fusion. Specimens fused for longer time exhibit has lower fatigue lifetime owing to chemical reaction of Si and O in the coating generated particle of SiO2 that become bigger with longer fusion time and become source of crack. The reasonable remelting holding time were confirmed after taking into account of the small specimen effects on the big component, and so the service life of the plunger were improved significantly.
语种	中文
出版者	Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083, China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150180]
专题	学报编辑部材料科学与工程学院机电工程学院
作者单位	1.Lanzhou Polytechnic College, Lanzhou 730050, China 2.College of Mechano-Electronic Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
推荐引用方式 GB/T 7714	Zhao, Zhi-Ping,Li, Xin-Yong,Li, You-Tang,et al. Analysis of fatigue properties for plunger with different post-fused thermal spray[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2012,33(SUPPL.):86-89.
APA	Zhao, Zhi-Ping,Li, Xin-Yong,Li, You-Tang,Duan, Hong-Yan,&Wei, Wei.(2012).Analysis of fatigue properties for plunger with different post-fused thermal spray.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,33(SUPPL.),86-89.
MLA	Zhao, Zhi-Ping,et al."Analysis of fatigue properties for plunger with different post-fused thermal spray".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 33.SUPPL.(2012):86-89.