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Ultrasonic cavitation erosion of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC-10Co-4Cr coating in NaCl solution
Hong, Sheng; Wu, Yuping; Zhang, Jianfeng; Zheng, Yugui; Qin, Yujiao; Lin, Jinran; hongsheng1988@126.com; wuyuping@hhu.edu.cn
2015
发表期刊ULTRASONICS SONOCHEMISTRY
ISSN1350-4177
卷号26页码:87-92
摘要The high-velocity oxygen-fuel (HVOF) spraying process was used to prepare near-nanostructured WC-10Co-4Cr coating. The cavitation erosion behavior and mechanism of the coating in 3.5 wt.% NaCl solution were analyzed in detail. The results showed that the amorphous phase and WC grain were present in the coating. The cavitation erosion resistance of the coating was about 1.27 times that of the stainless steel 1Cr1 8Ni9Ti under the same testing conditions. The effects of erosion time on the microstructural evolution were discussed. It was revealed that cracks initiated at the edge of pre-existing pores and propagated along the carbide-binder interface, leading to the pull-out of carbide particle and the formation of pits and craters on the surface. The main failure mechanism of the coating was erosion of the binder phases, brittle detachment of hard phases and formation of pitting corrosion products. (C) 2015 Elsevier B.V. All rights reserved.
部门归属[hong, sheng ; wu, yuping ; zhang, jianfeng ; qin, yujiao ; lin, jinran] hohai univ, inst met & protect, coll mech & mat, nanjing 210098, jiangsu, peoples r china ; [zheng, yugui] chinese acad sci, inst met res, key lab nucl mat & safety assessment, shenyang 110016, peoples r china
关键词Hvof Near-nanostructured Wc-10co-4cr Coating Cavitation
资助者National Natural Science Foundation of China [51131008]; Fundamental Research Funds for the Central Universities [2013834414, 2014802314]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75233
专题中国科学院金属研究所
通讯作者hongsheng1988@126.com; wuyuping@hhu.edu.cn
推荐引用方式
GB/T 7714
Hong, Sheng,Wu, Yuping,Zhang, Jianfeng,et al. Ultrasonic cavitation erosion of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC-10Co-4Cr coating in NaCl solution[J]. ULTRASONICS SONOCHEMISTRY,2015,26:87-92.
APA Hong, Sheng.,Wu, Yuping.,Zhang, Jianfeng.,Zheng, Yugui.,Qin, Yujiao.,...&wuyuping@hhu.edu.cn.(2015).Ultrasonic cavitation erosion of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC-10Co-4Cr coating in NaCl solution.ULTRASONICS SONOCHEMISTRY,26,87-92.
MLA Hong, Sheng,et al."Ultrasonic cavitation erosion of high-velocity oxygen-fuel (HVOF) sprayed near-nanostructured WC-10Co-4Cr coating in NaCl solution".ULTRASONICS SONOCHEMISTRY 26(2015):87-92.
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