回顾了低膨胀高温合金的发展历史."因瓦效应"和"时效硬化"现象的发现奠定了低膨胀高温合金发展的基础.20世纪70年代航空航天事业的迅猛发展以及能源危机的爆发为低膨胀高温合金在航空航天业的实际应用提供了宝贵的契机, 最早的商用Fe-Ni-Co(IN9××)系列合金,经过用Nb、Ti强化,去Al,加Si等一系列成分上的变化,显著改善其应力加速晶界氧化脆性(SAGBO性能),从此低膨胀高温合金在航空航天领域得到大量应用.为改善此类合金的抗氧化和降低裂纹扩展速率等性能,又进行了新合金系的研究,即以Inconel 783合金为代表的Fe-Ni-Co-Al-Cr系合金和以Haynes 242合金为代表的Ni-Mo-Cr系合金的研究,这些合金在750℃仍能达到完全抗氧化,为新一代飞机发动机的发展提供了优质材料.
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