Structures and properties of ceramic films on TiAl intermetallic compound fabricated by microarc oxidation
Structures and properties of ceramic films on TiAl intermetallic compound fabricated by microarc oxidation
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微弧氧化TiAl金属间化合物陶瓷膜的结构与性能
DOI：
10.1016/j.surfcoat.2006.07.129
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发表时间：
2007
影响因子：
5.4
通讯作者：
Y. Cheng
中科院分区：
文献类型：
--
作者：
Xijin Li;Xiao;W. Xue;G. Cheng;R. Zheng;Y. Cheng
The ceramic oxide films with a thickness of 120 μm were prepared on γ-TiAl intermetallic compound by alternating-current microarc oxidation in silicate electrolyte. Isothermal oxidation of TiAl alloy coated with the ceramic oxide film was carried out in air at 1100 °C. Result showed that the dense layers in the oxide film were mainly composed of Al2TiO5and TiO2rutile phase, while the loose layer contained a large amount of amorphous SiO2besides Al2TiO5and TiO2rutile phase. Thermal shock tests revealed a good adhesion between the films and TiAl substrate, and the oxidation resistance of the TiAl alloy was improved.
