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alloy exhibits good oxidation resistance at 700 ℃. However, when the temperature is higher than 900 ℃, the oxidation resistance becomes poor. The XRD results reveal that the oxide product consists... resistance; Ti3Al-based intermetallic alloy; oxidation kinetics ......
resistance of porous TiAl intermetallic compound was investigated. The kinetic equation for the cyclic oxidation of porous TiAl alloy at 600 ℃ is determined to be Δm2=1.08×10-5t. After total... words: TiAl intermetallic compound; porous material; high temperature oxidation resistance; corrosion resistance ......
; Abstract: AZ91D, AZ91D+1%Y, and AZ91D+3%Y2O3 (mass fraction) alloys were cast, and oxidized between 400 and 500 ℃ in air. The oxidation resistance increased in the order of AZ91D, AZ91D+3%Y2O3, and AZ91D+1%Y, indicating that Y was more effective than Y2O3 in increasing the oxidation resistance of the Mg alloys. However, all the alloys tested......
Environmental friendly plasma electrolytic oxidation of AM60 magnesium alloy and its corrosion resistance CAO Fa-he(曹发和)1, LIN Long-yong(林龙勇)2, ZHANG Zhao(张 昭)1, ZHANG Jian-qing(张鉴清)1, 3, CAO...; plasma electrolytic oxidation; AC technique; corrosion resistance ......
Structure and Corrosion Resistance of Microarc Oxidation Coatings on AZ91D Magnesium Alloy Li Weijing1,Han Jianmin1,CUI Shihai1,Zhu Xiaowen1,Wang Jinhua1,LI Ronghua1 (1.School of Mechanical... corrosion resistance confines its extensively application. In this paper, protective coatings was successfully prepared on AZ91D magnesium alloys by micro-arc oxidation (MAO) and painting process......
Received 23 October 2009; accepted 23 August 2010 Abstract: The corrosion resistance of the micro-arc oxidation (MAO) ceramic coating on a cast Al-13Si-5Cu alloy was investigated using various... of the compact layer and is not proportional to the total thickness of MAO, though the latter is one of the important factors influencing the corrosin resistance. Key words: micro-arc oxidation(MAO......
that the incorporation of Si in many alloy systems has a beneficial effect on their oxidation resistance[1, 2]. In addition, silicon is abundant and cheap. More-over, Si has one of the largest solubility in Ni3Al where it substitutes for Al atoms and thus promotes solution hardening, while it also increases the thermodynamic stability of Ni3Al[3]. The oxidation resistance of Ni-Al alloys was reviewed......
-particles co-deposited into Ni-W-P alloy can improve the high-temperature oxidation resistance. Key words: pulse electrodeposition; metal matrix composites; nano-particles; high-temperature oxidation... and high-speed conditions. Therefore, in order to improve the wear resistance, corrosion resistance and high-temperature oxidation resistance, surface strengthening technique is very important......
. Ag-SnO2 contact materials fabricated by IO method have high resistance to arcing, high welding adhesion resistance, high hardness and strength. But the oxidation of Ag-Sn alloy is difficult when... Microstructure of Ag-Sn-Cu-Bi-Ni alloy after oxidation WU Chun-ping(吴春萍)1, YI Dan-qing(易丹青)1, LI Jian(李荐)1, WANG Bin(王斌)1,XU Can-hui(许灿辉)1,LU Xiao-dong(卢小东)2 1.School of Materials Science......
oxidation resistance among the three alloys; and Hf addition is harmful to the oxidation resistance of the Nb67W15Si18 alloy. The oxides formed on the Nb67W15Si18 alloy are mainly Nb12WO33 and NbO2... of oxidation. Key words: Nb-Si based alloys; Ni67-xW15Si18Hfx alloys; high-temperature oxidation; oxidation resistance; oxide 1 Introduction Niobium-silicide based composites are potential candidates......
