| 摘要: |
| 文中采用多弧离子镀技术在γ-TiAl合金表面制备了NiCrAlY涂层，用SEM/EDS和XRD等手段研究了该涂层对γ-TiAl合金高温氧化行为的影响。结果表明NiCrAlY涂层在高温下可形成保护性氧化铝膜，显著提高了γ-TiAl的高温氧化抗力。在氧化过程中，NiCrAlY/TiAl涂层体系发生了严重的Ni的内扩散，形成了层状结构的互扩散带。 |
| 关键词: 多弧离子镀 NiCrAlY γ-TiAl 氧化 互扩散 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金（50771100） |
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| Effect of Arc Ion PlatedNiCrAlY Coating on Oxidation Behavior of γ-TiAl Alloy |
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CHENG Yu-xian, LIU Li, WANG Wen, WANG Fu-hui, WANG Lu1,2
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1.Shenyang Liming Aeroengine Group Corporation Ltd., AVIC, Shenyang 110043;2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
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| Abstract: |
| NiCrAlY coating was deposited onto γ-TiAl alloy employing arc ion plating and the oxidation behavior was investigated by SEM/EDS and XRD. The results indicated that NiCrAlY coating can remarkably improve the oxidation resistance of γ-TiAl alloy by forming a protective scale. Serious inward diffusion of Ni from the NiCrAlY coating to γ-TiAl substrate was occurred during oxidation，which resulted in the formation of multilayered interdiffusion zone. |
| Key words: arc ion plating NiCrAlY γTiAl oxidation interdiffusion |
