| Oxidation protection of NiCoCrAIY coatings on γ-TiAl |
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| 引用本文： | 王启民,郭明虎,柯培玲,宫骏,孙超,闻立时.Oxidation protection of NiCoCrAIY coatings on γ-TiAl[J].中国有色金属学会会刊,2005,15(2):423-426. |
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| 作者姓名： | 王启民 郭明虎 柯培玲 宫骏 孙超 闻立时 |
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| 作者单位： | DivisionofSurfaceEngineeringofMaterials,InstituteofMetalResearch,ChineseAcademyofSciences,Shenyang110016,China |
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| 摘 要： | Abstract: The effect of NiCoCrAlY overlay coatings on the oxidation resistance of γ-TiAl was studied at 900℃ in static air. To hinder the interdiffusion of the elements, the Al/Al2 O3 layer was added between the coating and the alloy. The results show that the TiAl alloy exhibits poor oxidation resistance. NiCoCrAlY coating can not effectively protect the γ-TiAl substrate from high temperature oxidation because of the serious interdiffusion between the coating and the substrates. With Al/Al2O3 diffusion barrier, the NiCoCrAlY coating exhibits excellent oxidation protection on γ-TiAl alloy.
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| 关 键 词： | 钛铝合金 镍 电镀处理 高温氧化 扩散势垒区 |
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