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High-velocity oxygen-fuel spray parameter optimization of nanostructured WC-10Co-4Cr coatings and sliding wear behavior of the optimized coating
S. Hong; Y. P. Wu; B. Wang; Y. G. Zheng; W. W. Gao; G. Y. Li
2014
Source PublicationMaterials & Design
ISSN0261-3069
Volume55Pages:286-291
AbstractIn this paper, the Taguchi method was employed to optimize the spray parameters (spray distance, oxygen flow and kerosene flow) to achieve the highest hardness and, in turn, the best wear resistance of the high-velocity oxygen-fuel (HVOF) sprayed nanostructured WC-10Co-4Cr coating by investigating the correlation between the spray parameters and the hardness. The important sequence of spray parameters on the hardness of the coatings is kerosene flow > oxygen flow > spray distance, and the kerosene flow is the only significant factor. The optimal spray parameter (OSP) for the coating is obtained by optimizing hardness (330 mm for the spray distance, 2000 scfh for the oxygen flow and 6.0 gph for the kerosene flow). The coating deposited under the OSP with low porosity and high microhardness consists predominately of WC and a certain amount of W2C phases. The coating deposited under the OSP exhibits better wear resistance compared with the cold work die steel Cr12MoV. The material removal of the coating is the extrusion of the ductile Co-Cr matrix followed by the crack and the removal of the hard WC particles. (C) 2013 Elsevier Ltd. All rights reserved.
description.department[hong, sheng ; wu, yuping ; wang, bo ; 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
KeywordHigh-velocity Oxygen-fuel Nanostructured Wc-10co-4cr Coating Taguchi Method Sliding Wear Wc-co Coatings Silt Erosion Behavior Tribological Properties Cutting Parameters Stainless-steel Taguchi Method Microstructure Resistance Corrosion Nanocomposite
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Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72370
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
S. Hong,Y. P. Wu,B. Wang,et al. High-velocity oxygen-fuel spray parameter optimization of nanostructured WC-10Co-4Cr coatings and sliding wear behavior of the optimized coating[J]. Materials & Design,2014,55:286-291.
APA S. Hong,Y. P. Wu,B. Wang,Y. G. Zheng,W. W. Gao,&G. Y. Li.(2014).High-velocity oxygen-fuel spray parameter optimization of nanostructured WC-10Co-4Cr coatings and sliding wear behavior of the optimized coating.Materials & Design,55,286-291.
MLA S. Hong,et al."High-velocity oxygen-fuel spray parameter optimization of nanostructured WC-10Co-4Cr coatings and sliding wear behavior of the optimized coating".Materials & Design 55(2014):286-291.
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