【摘要】 介绍了涡轮发动机燃烧室材料的使用条件和国内外采用的高温合金材料;概述了燃烧室用新材料GH4199合金的成分特点,冶炼、加工、热处理工艺,组织稳定性及其性能,认为应进一步加强对该类合金在焊接和涂层方面的研究。更多还原

【Abstract】 The service condition and superalloys for combustion chamber of gas-turbine engines have been introduced. A new superalloy GH4199 for combustion chamber was developed and its chemical composition, melting, forming, heat treatmeat, microstructrure stability and properties were summarised. Recent research on joining and coating of this type superalloy has been introduced also.更多还原