Effects of different pack aluminizing fillers on the aluminide coatings of Ti-6Al-4V alloy and their high-temperature oxidation behaviors
来源期刊：Rare Metals2007年第S1期
论文作者：ZHOU Wei,ZHAO Yuguang,and MEI Xuelian Key Laboratory of Automobile Materials of Ministry of Education,Department of Materials Science and Engineering,Jilin University,Changchun ,China
文章页码：306 - 312
摘 要：The aluminide coating process of Ti-6Al-4V alloys with different fillers（100wt.% Al2O3,50wt% Y2O3+50wt.% Al2O3 and 100wt.% Y2O3） for improvement of the oxidation resistance were investigated.The results show that the filler does not only participate in the aluminizing process,but also has much effect on the coating composition.The XRD analysis reveals that the aluminide coating with filler Al2O3 is predominant with TiAl3 and TiAl phases;while the aluminide coatings with filler Y2O3+Al2O3 are predominant with Ti3Al phase.The oxidation kinetics shows that different fillers affect greatly the oxidation resistance of aluminide coating,and the oxidation resistance of aluminized specimens with pack aluminizing filler Al2O3 are about 5-8 times than that of the aluminized specimens with other pack aluminizing fillers.
ZHOU Wei,ZHAO Yuguang,and MEI Xuelian Key Laboratory of Automobile Materials of Ministry of Education,Department of Materials Science and Engineering,Jilin University,Changchun 130025,China
摘 要：The aluminide coating process of Ti-6Al-4V alloys with different fillers（100wt.% Al2O3,50wt% Y2O3+50wt.% Al2O3 and 100wt.% Y2O3） for improvement of the oxidation resistance were investigated.The results show that the filler does not only participate in the aluminizing process,but also has much effect on the coating composition.The XRD analysis reveals that the aluminide coating with filler Al2O3 is predominant with TiAl3 and TiAl phases;while the aluminide coatings with filler Y2O3+Al2O3 are predominant with Ti3Al phase.The oxidation kinetics shows that different fillers affect greatly the oxidation resistance of aluminide coating,and the oxidation resistance of aluminized specimens with pack aluminizing filler Al2O3 are about 5-8 times than that of the aluminized specimens with other pack aluminizing fillers.
关键词：
