Cavitation erosion behavior of nanocomposite Ti-Si-C-N and Ti/Ti-Si-C-N coatings deposited on 2Cr13 stainless steel using a Plasma Enhanced Magnetron Sputtering process

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	Cavitation erosion behavior of nanocomposite Ti-Si-C-N and Ti/Ti-Si-C-N coatings deposited on 2Cr13 stainless steel using a Plasma Enhanced Magnetron Sputtering process
	C. P. Qin; Y. G. Zheng; R. Wei
	2010
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	204 期号:21-22 页码:3530-3538
摘要	In the work presented in this paper, the liquid droplet erosion resistance of two nanocomposite Ti-Si-C-N single layer coatings (SMR1 and SMR3) and one multilayer structured nanocomposite Ti/Ti-Si-C-N coating (SMR2) on 2Cr13 stainless steel has been investigated by means of cavitation erosion. Three sets of 2Cr13 samples were deposited using a Plasma Enhanced Magnetron Sputtering (PEMS) process using different parameters to 35 mu m, 68 mu m and 59 mu m thick. The cavitation erosion resistance of the coatings was evaluated with a vibratory cavitation apparatus in distilled water and in a 3 wt.% NaCl solution; the latter was used to simulate an aggressive environment. The surface and cross-sectional morphologies of the samples were studied using scanning electron microscopy (SEM) before and after the cavitation erosion tests. The results from the investigation indicate that the three coatings exhibited excellent cavitation erosion resistance in both media compared with the uncoated substrate. The cavitation erosion resistance of the thicker single layer coating SMR3 and the multilayer coating SMR2 was especially pronounced, while SMR1 was not so satisfactory because microcracks extended to the substrate due to its small thickness. The SMR2 coating effectively prevented the propagation of the microcracks in a manner of layer-by-layered spallation, owing to its multilayer structure. Even though the coatings improved the erosion resistance of the substrate, the SEM study revealed that there were many micro-droplets and V-shaped defects in the coatings, which formed the nucleation sites for the coating spallation. Therefore, if the size and the number density of the micro-droplets can be reduced and the coatings can be made more homogeneous, without V-shaped defects, the cavitation erosion resistance of coated 2Cr13 steel should be further improved. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[qin, c. p.; zheng, y. g.] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, liaoning, peoples r china. [wei, r.] sw res inst, san antonio, tx 78238 usa.;zheng, yg (reprint author), chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, liaoning, peoples r china;ygzheng@imr.ac.cn
关键词	Cavitation Erosion Ti-si-c-n Coating 2cr13 Steel Plasma Enhanced Magnetron Sputtering Steam Turbine Liquid Droplet Erosion Liquid Impact Erosion Chemical-vapor-deposition Water Droplet Erosion Stellite 6b 12cr Steel Resistance Surface Microstructure Impingement Protection
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WOS记录号	WOS:000279696400025
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31412
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. P. Qin,Y. G. Zheng,R. Wei. Cavitation erosion behavior of nanocomposite Ti-Si-C-N and Ti/Ti-Si-C-N coatings deposited on 2Cr13 stainless steel using a Plasma Enhanced Magnetron Sputtering process[J]. Surface & Coatings Technology,2010,204(21-22):3530-3538.
APA	C. P. Qin,Y. G. Zheng,&R. Wei.(2010).Cavitation erosion behavior of nanocomposite Ti-Si-C-N and Ti/Ti-Si-C-N coatings deposited on 2Cr13 stainless steel using a Plasma Enhanced Magnetron Sputtering process.Surface & Coatings Technology,204(21-22),3530-3538.
MLA	C. P. Qin,et al."Cavitation erosion behavior of nanocomposite Ti-Si-C-N and Ti/Ti-Si-C-N coatings deposited on 2Cr13 stainless steel using a Plasma Enhanced Magnetron Sputtering process".Surface & Coatings Technology 204.21-22(2010):3530-3538.