Influence of coating thickness on tension and compression fatigue performance of flame thermal spraying components

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	Influence of coating thickness on tension and compression fatigue performance of flame thermal spraying components
	Zhao, Zhi-Ping 1,2; Li, Xin-Yong 2; Duan, Hong-Yan1 ; Li, You-Tang1
	2012-11-01
发表期刊	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
ISSN	10096264
卷号	33 期号:SUPPL. 2 页码:139-144
摘要	In order to study the effect of different coating thickness on the fatigue performance of the samples processed with thermal spraying, Ni60A self-fluxing alloy coating of different thickness was made on 40Cr steel substrate, using technology of flame thermal spraying. The phase composition and the microstructure of the fatigue fracture were studied by means of XRD,SEM and EDX. Fatigue lifetime of thermal spraying samples and matrix samples were tested by using electro-hydraulic high-frequency fatigue test machine. The results show that the reasonable thickness of coating is 0.25 mm for the designed samples. The surface of Ni60A coating was composed of Cr7C3, Ni, Cr3Ni5Si2, CrB, Ni3B etc. after the refusion time of 2 min. The interface and the surface of coating endure more load of tension and compression than the middle coating when the thickness of coating is reasonable, so the tension and compression fatigue lifetime of thermal spraying samples is longer than matrix samples. The tension and compression fatigue lifetime goes down with the increase in the thickness of coating when the thickness of coating is more than 0.25 mm. The fatigue lifetime of components is closely related to the number and the average size of nonmetallic particles and pores.
关键词	Fatigue testing Hydraulic machinery Metal cladding Thermal spraying Thickness measurement 40Cr steel Average size Coating thickness Different thickness Electro-hydraulics Fatigue fracture Fatigue lifetime Fatigue performance Fatigue test machine Fracture surfaces High frequency HF Self-fluxing alloys Tension and compression XRD
收录类别	EI
语种	中文
出版者	Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083, China
EI入藏号	20130315910738
EI主题词	Chromate coatings
EI分类号	422.2 Strength of Building Materials : Test Methods ; 538.2 Welding ; 632.2 Hydraulic Equipment and Machinery ; 813.1 Coating Techniques ; 813.2 Coating Materials ; 943.2 Mechanical Variables Measurements
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150156
专题	机电工程学院学报编辑部
作者单位	1.College of Mechano-Electronic Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2.Lanzhou Institute of Technology, Lanzhou 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Zhao, Zhi-Ping,Li, Xin-Yong,Duan, Hong-Yan,et al. Influence of coating thickness on tension and compression fatigue performance of flame thermal spraying components[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2012,33(SUPPL. 2):139-144.
APA	Zhao, Zhi-Ping,Li, Xin-Yong,Duan, Hong-Yan,&Li, You-Tang.(2012).Influence of coating thickness on tension and compression fatigue performance of flame thermal spraying components.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,33(SUPPL. 2),139-144.
MLA	Zhao, Zhi-Ping,et al."Influence of coating thickness on tension and compression fatigue performance of flame thermal spraying components".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 33.SUPPL. 2(2012):139-144.