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Aluminizing Coating and Aluminizing-Y2O3 Coating Deposited by Pulsed Spark 高高唯1,王德仁2,何业东2,齐惠滨2,黄祖芬2 (1.Department of Chemistry and Material Engineering, University of Auckland, Auckland, New Zealand;2.Department of Surface Science and Corrosion Engineering, University of Science and Technology Beijing,) Abstract:Aluminizing coating and aluminizing-dispersed Y2O3 composite coating were prepared......
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42CrMo钢表面高频感应熔覆WC增强镍基复合涂层的研究毕雅萱1,赵帅11. 鹤壁汽车工程职业学院机械工程系摘 要:通过高频感应加热在42CrMo钢表面熔覆制备0.5 mm厚的WC增强Ni60复合涂层.通过电子显微镜,显微硬度计,能谱仪,X射线衍射仪以及万能摩擦磨损实验机研究分析了图层的组织形貌,相结构,硬度和耐磨性.结果表明:熔覆层组织均匀,主要由WC,W2C,Cr23C6,Cr7C3,FeNi,Ni3Fe等相组成,与基体呈冶金结合并伴随有大量合金元素的扩散,结合界面较致密,无明显夹杂等缺陷,结合强度高;熔覆层组织致密,硬度分布较为均匀,WC增强Ni60复合熔覆层耐磨性相比淬火态42CrMo有较大提高.关键词:WC增强Ni60合金;复合涂层;高频感应熔覆;冶金结合;耐磨性;......
J. Cent. South Univ. Technol. (2008) 15: 54-58 DOI: 10.1007/s11771-008-0012-0 Synthesis of P(St-BA-MAA-SPAA) nano-latex and its application in high anti-corrisive coating LIU Hai... were investigated. And the anti-corrosive property of the resultant zinc-rich coating was studied. The results show that the nano-latex is self-stabilized and has a narrow particle diameter......
Wear resistance of ceramic coating on AZ91 magnesium alloy by micro-arc oxidation ZHAO Hui(赵 晖)1, 2, LIU Zheng(刘 正)1, CHEN Li-jia(陈立佳)1, CHEN Ji(陈 吉) 3, HAN Zhong(韩 忠)3 1. College of Materials... of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China Received 25 September 2006; accepted 7 Oct 2006 Abstract: The ceramic coating formed on AZ91 magnesium alloy by micro-arc......
W1813N无磁不锈钢表面激光熔覆Ni60与WC-12Co/Ni25涂层的组织结构和磨损行为(英文)杨理京,张平祥,王少鹏,李争显,王培,李欢,杨海彧西北有色金属研究院摘 要:利用激光熔覆技术在W1813N无磁性不锈钢表面分别制备高硬度镍基自熔性合金Ni60(60HRC)涂层和低硬度Ni25基WC-12Co复合涂层.利用扫描电子显微镜(SEM),能谱(EDS),X射线衍射仪(XRD)和台阶仪,分析激光熔覆制备Ni60涂层和WC-12Co/Ni25复合涂层的显微组织,相组成和磨损行为.利用显微硬度,摩擦系数,磨痕轮廓对比2种涂层的耐磨性和磨损机制.结果表明,Ni60涂层显微组织主要为树枝晶和等轴晶,且Cr23C6,Cr2B等强化相弥散分布在γ-Ni和Fe Ni固溶体晶界;而WC-12Co/Ni25复合涂......
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Experimental and finite element analysis for fracture of coating layer of galvannealed steel sheet S. I. KIM1, J. U. HER2, Y. C. JANG2, Y. LEE2 1. Sheet Products and Process Research Group, POSCO...: Mechanical properties of galvannealed (GA) steel sheet used for automotive exposed panel and predicted failure phenomenon of its coating layer were evaluated using finite element method. V-bending test......
Microstructure and properties of HVOF sprayed Ni-based submicron WS2/CaF2 self-lubricating composite coating ZHANG Xiao-feng(章小峰)1, 2, ZHANG Xiang-lin(张祥林)1, 2, WANG Ai-hua(王爱华)1, 2, HUANG Zao... coefficients of two kinds of coatings increase to 0.4-0.63 and 0.35-0.46, respectively, at the test speed of 1 m/s. And the Ni45-10%CaF2-5%WS2 coating presents the minimum friction coefficient......
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