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Effect of Ca and Y additions on oxidation behavior of AZ91 alloy at elevated temperatures CHENG Su-ling(程素玲), YANG Gen-cang(杨根仓), FAN Jian-feng(樊建锋), LI You-jie(李佑杰), ZHOU Yao-he(周尧和... magnesium alloy, the effect of alloying elements, Ca and Y, on the oxidation behavior of AZ91 magnesium alloy at elevated temperatures was investigated. The ignition-proof performance, oxide products......
, DENG Zhi-wei. Structure and properties characterization of ceramic coatings produced on Ti-6Al-4V alloy by microarc oxidation in aluminate solution [J]. Materials Letters, 2002, 52: 435-441. [9] GUO..., 2006, 252(22): 7911-7916. [10] XUE Wen-bin, DENG Zhi-wei, CHEN Ru-yi, ZHANG Tong-he. Growth regularity of ceramic coating formed by microarc oxidation on Al-Cu-Mg alloy [J]. Thin Solid Films, 2000......
. 2 图3 Ti6Al4V合金和复合涂层的恒温(800 ℃)氧化动力学曲线 Fig. 3 Oxidation kinetic curves of Ti6Al4V alloy and composite coating under isothermal oxidation at 800 ℃ 图4所示为恒温(800 ℃)氧化32 h后Ti6Al4V合金和复合涂层氧化表面的... isothermal oxidation at 800 °C for 32 h 氧化反应经历两个过程:界面反应和扩散过程.界面反应包括氧化物与氧气和氧化物与金属表面两个界面反应；扩散过程包括,氧原子与金属原子扩散和正负电子转移.图5(a)所示为Ti6Al4V合金的氧化反应过程示意图.由于TiO反应吉布斯自由能低于TiO2,Ti与氧离子生成TiO,在氧气充足条件下,TiO与氧离子反应生成TiO2,其生成......
Microstructure and properties of microarc oxidation coating formed on aluminum alloy with compound additives nano-TiO2 and nano-ZnOTing-Yi Lin,Xiao-Yan Zhang,Xin Huang,Xiang-Peng Gong,Jun-Jie Zhang,Xie-Jun HuCollege of Materials and Metallurgy, Guizhou University摘 要:In this work, microarc oxidation(MAO) technology was used to form oxide ceramic coating......
, surface area, and the mechanism of CO oxidation. The results show that, on XRD patterns, no evidence of CuO diffraction peaks is present until Cu loading is increased to 20%. The BET surface area... words:mesoporous CeO2; catalytic activity; CuO/CeO2; CO oxidation......
Zn and Ag Co-doped Anti-microbial TiO2 Coatings on Ti by Micro-arc OxidationLan Zhang,Qin Gao,Yong HanState-key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University摘 要:Micro-porous TiO2 coatings co-doped with Zn2+ and Ag nanoparticles were fabricated on Ti by microarc oxidation(MAO) for 0.5, 1.5, 2 and 4 min, respectively......
was observed on Mg matrix composite Al18B4O33w/AZ91(a composite with Al18B4O33 crystal whisker as reinforced phase) when this composite was treated by microarc oxidation (MAO) technique,and then the role...Role of Al18B4O33 Whisker in MAO Process of Mg Matrix Composite and Protective Properties of the Oxidation CoatingYanqiu Wang1,Xiaojun Wang2,Kun Wu2,Fuhui Wang1,31. Corrosion and Protection......
Shape-controlled synthesis of nanocubic Co3O4 by hydrothermal oxidation method YANG You-ping(杨幼平), HUANG Ke-long(黄可龙), LIU Ren-sheng(刘人生), WANG Li-ping(王丽平), ZENG Wen-wen(曾雯雯), ZHANG Ping-min(张平民... oxidation method. The effects of cobalt salt, precipitating agent, surfactant, solvent, pH value of the suspension and the amount of oxidant H2O2 on the morphology and structure of Co3O4 were investigated......
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