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

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Influence of coating thickness on tension and compression fatigue performance of flame thermal spraying components
	Zhao, Zhi-Ping 1,2; Li, Xin-Yong 1; Duan, Hong-Yan 2; Li, You-Tang 2
刊名	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
	2012-11-01
卷号	33 期号:SUPPL. 2 页码:139-144
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
ISSN号	10096264
英文摘要	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.
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/150156]
专题	机电工程学院学报编辑部
作者单位	1.Lanzhou Institute of Technology, 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,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.