Ceramic Films Containing Ca,P and Al Formed on Surface of TC4 Alloy by Micro-Arc Oxidation
来源期刊：材料保护2004年增刊第2期
论文作者：YAO Zhong-ping JIANG Zhao-hua SUN Xue-tong FU Lian-chun
关键词：TC4; micro-arc oxidation; ceramic films; corrosion resistance;
摘 要：Ceramic films containing Ca, P and Al were prepared on surface of TC4 alloy by micro-arc oxidation using direct current supply to enhance its seawater and plankton corrosion resistance. XRD, EDS, SEM and EPMA were employed to characterize the microstructure and the phase composition. The results showed that 15 μm-ceramic films which was uniform and compact were formed on TC4 . The mass proportion of Ca, P and Al is about 2 : 3 : 4. There was AlPO4 crystal but Ca was not crystal. Cyclic Volt-Ampere test showed that the corrosion resistance of theceramic films was much better than that of the TC4 substrate.
YAO Zhong-ping1，JIANG Zhao-hua1，SUN Xue-tong1，FU Lian-chun1
(1.Dept. of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, PRC)
摘要:Ceramic films containing Ca, P and Al were prepared on surface of TC4 alloy by micro-arc oxidation using direct current supply to enhance its seawater and plankton corrosion resistance. XRD, EDS, SEM and EPMA were employed to characterize the microstructure and the phase composition. The results showed that 15 μm-ceramic films which was uniform and compact were formed on TC4 . The mass proportion of Ca, P and Al is about 2 : 3 : 4. There was AlPO4 crystal but Ca was not crystal. Cyclic Volt-Ampere test showed that the corrosion resistance of theceramic films was much better than that of the TC4 substrate.
关键词:TC4; micro-arc oxidation; ceramic films; corrosion resistance;
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