【摘要】 全面综述国内外TiAl基合金体系高温氧化机理及其防护研究进展,特别是20世纪90年代以来的研究情况。主要阐述TiAl系金属间化合物分类及其应用、TiAl基合金高温氧化行为、氧化膜结构及其形成、氮效应、表面效应、Z相的形成及其对氧化行为的影响,合金化和涂层防护方法及其机理、近年来出现的新表面处理技术以及传统表面处理技术在TiAl基合金抗高温氧化防护方面的应用,对各种防护方法的特点及应用范围进行对比分析,并对该领域研究的发展趋势进行展望。更多还原

【Abstract】 The research progress at home and abroad of the high-temperature oxidation behavior and protection of the TiAl-based alloy,especially after 1990s,was reviewed.The classification and the applications,the high temperature oxidation behavior,the formation and structure of the oxidate layers,the formation and influence of nitrogen effect,surface effect and Z phase on oxidation behavior,the bulk and surface alloying protection and its mechanics,the coating protection and its mechanics of TiAl-based alloy,the formation and structure of the oxidation layers,the nitrogen effect,surface effect,the formation of Z phase and the effect of it on oxidation behavior,the alloying and coating protection of TiAl-based alloy,new surface treatment technologies and traditional surface treatment technologies reused to improve the high temperature oxidation resistance of the TiAl-based alloy and the future development of this area were reviewed.The characteristic and applications of the different protection ways were also discussed.更多还原