Cavitation Erosion Behavior and Mechanism of HVOF Sprayed WC-10Co-4Cr Coating in 3.5 wt% NaCl Solution

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	Cavitation Erosion Behavior and Mechanism of HVOF Sprayed WC-10Co-4Cr Coating in 3.5 wt% NaCl Solution
	S.; Wu Hong, Y. P.; Zhang, J. F.; Zheng, Y. G.; Qin, Y. J.; Gao, W. W.; Li, G. Y.
	2015
发表期刊	Transactions of the Indian Institute of Metals
ISSN	0972-2815
卷号	68 期号:1 页码:151-159
摘要	A WC-10Co-4Cr coating was prepared by high-velocity oxygen-fuel (HVOF) thermal spraying process. The cavitation erosion (CE) characteristics of the coating as well as the stainless steel 1Cr18Ni9Ti were investigated in 3.5 wt% NaCl solution. The coating exhibited higher CE resistance than that of the stainless steel 1Cr18Ni9Ti. After being eroded for 20 h, the CE volume loss of the stainless steel 1Cr18Ni9Ti is 3.22 times to that of the coating. The removal mechanism for the coating was erosion of the binder phase first, followed by brittle detachment of hard phases as a result of the action of corrosion and mechanical effect. The cracks were found to initiate at the carbide-binder interface and the edge of the pores, leading to craters on the surface and accelerating the damage of the coating. Fatigue and plastic deformation were found to be the material removal mechanism for the substrate steel 1Cr18Ni9Ti.
部门归属	[hong, sheng ; wu, yuping ; zhang, jianfeng ; qin, yujiao ; gao, wenwen ; li, gaiye] hohai univ, inst met & protect, coll mech & mat, nanjing 210098, jiangsu, peoples r china. [zheng, yugui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; wu, yp (reprint author), hohai univ, inst met & protect, coll mech & mat, 1 xikang rd, nanjing 210098, jiangsu, peoples r china. ; wuyuping@hhu.edu.cn ; ygzheng@imr.ac.cn
关键词	Hvof Wc-10co-4cr Coating Cavitation Wc-co Coatings Thermal Spray Resistance Slurry Steel Microstructure Performance
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73815
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S.,Wu Hong, Y. P.,Zhang, J. F.,et al. Cavitation Erosion Behavior and Mechanism of HVOF Sprayed WC-10Co-4Cr Coating in 3.5 wt% NaCl Solution[J]. Transactions of the Indian Institute of Metals,2015,68(1):151-159.
APA	S..,Wu Hong, Y. P..,Zhang, J. F..,Zheng, Y. G..,Qin, Y. J..,...&Li, G. Y..(2015).Cavitation Erosion Behavior and Mechanism of HVOF Sprayed WC-10Co-4Cr Coating in 3.5 wt% NaCl Solution.Transactions of the Indian Institute of Metals,68(1),151-159.
MLA	S.,et al."Cavitation Erosion Behavior and Mechanism of HVOF Sprayed WC-10Co-4Cr Coating in 3.5 wt% NaCl Solution".Transactions of the Indian Institute of Metals 68.1(2015):151-159.