李莉,贺定勇,蒋建敏,李晓延

• 1:北京工业大学材料科学与工程学院

摘要(Abstract)：

以抛光和喷砂的AZ31镁合金为基体,并在基体温度分别为25℃、150℃、250℃下,用等离子喷枪在基体表面喷涂NiAl粉末,研究熔滴粒子扁平行为及涂层的结合机理。研究结果表明:随着基体预热温度的升高,粒子中心扁平凝固区域逐渐扩大;NiAl粉末喷涂时很容易熔化镁合金基体表面,并使基体表面产生凹坑变形,主要是微区冶金结合,提高结合强度。

关键词(KeyWords)： AZ31镁合金;等离子喷涂;粒子扁平行为

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李莉,贺定勇,蒋建敏,李晓延

DOI: 10.13289/j.issn.1009-6264.2010.06.013

参考文献(References)：

• [1]Bach F W,Mhwald K,Engl L,et al.Proporties of thermally sprayed coatings on magnesium parts for enhancement of wear and corrosion resistance[C]∥Lugscheider E.Proceedings of International Thermal Spray Conference ITSC 2005,Germany.2005:720-725.
• [2]Bach F W,Mhwald K,Babiak Z,et al.Thermally sprayed coatings on Mg alloys for improved wear and corrosion resistance[C]∥Geiger M,Bouzakis K D,Denkena B,et al.Proceedings of the 4th International Conference the Coatings,Germany.2004:425-434.
• [3]杨元政,刘正义,庄育智.等离子喷涂Al2O3+13%TiO2陶瓷涂层的组织结构及其耐磨性[J].功能材料,2000,31(4):390-392.YANG Yuan-zheng,LIU Zheng-yi,ZHUANG Yu-zhi.The structure and wear resistance of plasma sprayed Al2 O3+13%TiO2 ceramic coating[J].Journal of Functional Materials,2000,31(4):390-392.
• [4]叶宏,张津,孙智富,等.镁合金表面等离子喷涂纳米陶瓷涂层研究[J].武汉理工大学学报,2004,26(4):9-11.YE Hong,ZHANG Jin,SUN Zhi-fu,et al.Research on plasma spraying nano Al2 O3+3%TiO2 ceramics onto surface of magnesium alloy[J].Journal of Wuhan University of Technology,2004,26(4):9-11.
• [5]Fukumoto M,Ohgitani I,Yasui T.Effect of substrate surface change on flattening behavior of thermal sprayed particles[J].Materials Transactions,2004,45(6):1869-1873.
• [6]Fukumoto M,Shiiba M,Kaji H,et al.Three-dimensional transition map of flattening behavior in the thermal spray process[J].Pure and AppliedChemistry,2005,77(2):429-442.
• [7]Fukumoto M,Tanaka Y,Nishioka E.Flattening problem of thermal sprayed particles[J].Materials Science Forum,2004,449-452:1309-1312.
• [8]邓世均.高性能陶瓷涂层[M].北京:化学工业出版社,2004.
• [9]Fukumoto M,Katoh S,Okane I.Splat behavior of plasma sprayed particles on flat substrate surface[C]∥Proceedings of the 14th InternationalThermal Spray Conference.Osaka:High Temperature Society of Japan.1995:353-358.
• [10]Parco M,Lidong Z,Bobzin K,et al.Investigation of particle flattening behavior and bonding mechanisms of APS sprayed coatings on magnesiumalloys[J].Surface&Coatings Technology,2007,201(14):6290-6296.
• [11]Li L,Wang X Y,Wei G,et al.Substrate melting during thermal spray splat quenching[J].Thin Solid Films,2004,468(1-2):113-119.
• [12]马晓青.冲击动力学[M].北京:北京理工大学出版社,1991.

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