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to the formation of composite oxide film composed of MgO, CaO and Y2O3. ⊙ Key words: AZ91 alloy; calcium; yttrium; oxidation resistance; oxidation kinetics  ... the oxidation resistance of magnesium alloy[1-8]. However, even a little content of Be will deteriorate the mechanical properties and the allowed content of Be is 0.01% (mass fraction) in permanent casting......
The Effect of Yttrium Addition on the Oxidation Resistance of Ti2AlNb Based Alloy陈玉勇Department of Materials Science and Engineering,Harbin Institute of Technology摘 要:The effect of yttrium on the oxidation resistance of as-cast Ti2AlNb based alloy was studied.With the addition of Y,the oxidation resistance of the experimental alloys was improved......
shock resistance. This is attributed to the combination of dense SiC layer and porous Si-Mo layer. Dense SiC layer plays the dual role of physical and chemical barrier, and resists the oxidation of porous Si-Mo layer. Porous Si-Mo layer improves the thermal shock resistance of the coating.
Key words: C/C-SiC composites; oxidation protective coating; slurry painting; chemical vapor deposition
A COMBINATORIAL APPROACH TO THE OXIDATION RESISTANCE OF(Ti,Al)N AND Ti-Al-Si-N HARD COATINGS D.Neuschütz1,R.Cremer1 (1.Lehrshl für Theoretische Hüttenkunde, Rheinisch-Westfalische Technische... between structure and composition onthe one hand and the oxidation resistance of these coatings on the other. The resultsillustrate that the composition spread approach is a powerful and cost......
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Catalytic Partial Oxidation of Methane over Ni/CeO2-ZrO2-Al2O3 Zhong Junbo1,Gong Maochu1,Wei Zhenling1,Mei Dajiang1,Ma Di1,Chen Yaoqiang1 (1.College of Chemistry, Sichuan University, Chengdu 610064... reduction (H2-TPR), and X-ray photoelectron spectroscopy (XPS). Through the test of catalytic partial oxidation of methane (CPOM), Ni/CeO2-ZrO2-Al2O3 displayed the highest activity, which resulted from its......
structure during 24 h of oxidation. However, Fe40Al-10WC and Fe40Al-12WC composite coatings show a good oxidation resistance behavior due to their dense structure. Key words: Fe40Al; WC; HVOF... resistance to oxidation and corrosion[1-5]. However, industrial application of these iron aluminium intermetallics has been very limited due to their poor ductility and fracture toughness at room......
Article ID: 1003-6326(2005)06-1388-06 Preparation of ZrO2-Al2O3 micro-laminated coatings on stainless steel and their high temperature oxidation resistance YAO Ming-ming(姚明明)1, 2, HE Ye-dong.... SEM, XRD and mass gain measurement were adopted to study the oxidation resistance of coatings on stainless steel. It has been found that all the coatings are effective in protecting the substrate from......
cycle. The final voltage influences the corrosion resistance of the anodized samples mainly by changing the surface morphology and coating thickness. Key words: magnesium alloys; micro-arc oxidation; electric parameters; corrosion resistance 1 Introduction Micro-arc oxidation (MAO), developed under the traditional anodization, is an effective method to improve the corrosion and wear resistance......
Characterization and wear resistance of macro-arc oxidation coating on magnesium alloy AZ91 in simulated body fluids CHEN Jun (陈 君), ZENG Rong-chang (曾荣昌), HUANG Wei-jiu (黄伟九), ZHENG Zi-qing (郑自... oxidation (MAO) or plasma electrolytic oxidation (PEO) coatings have good corrosion resistance[10-11] or wear resistance of Mg alloys in air[4, 8] and SBF[10]. There are, however, no literatures......