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Numerical and Experimental Studies of Substrate Melting and Resolidification during Thermal Spraying

查看全文 作　　者：H. Zhang G. Wei L.Zheng L.Li X. Y. Wang A. [1]Vaidya 高影响力作者 机构地区：[1]Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA高影响力机构 出　　处：《Journal of Materials Science & Technology》索引2003年第19卷第z1期,共4页高影响力期刊 基　　金：This work was supported by the National Science Foundation under award No. CTS-9876198 and MRSEC program under award No. DMR-00800221. 摘　　要：A good understanding of melting and resolidification of the substrate will help us to achieve better bonding. Anumerical model is developed to investigate the solidification of the droplet, and melting and resolidification of thesubstrate. The molybdenum powder spraying onto three different substrates: a stainless steel, brass (70%Cu) andaluminum by atmospheric plasma spraying has been investigated. The maximum melting depth of the substrate hasbeen measured and compared with the numerical prediction. Experimental results show that the material propertiesof the splat and substrate and melting temperature of the substrate play the important roles on substrate melting.A dimensionless parameter, temperature factor, has been proposed and served as an indicator for substrate melting. 关 键 词：Thermal spraying, Coating, Melting, Solidification, Materials PROCESSING
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