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- W2381490838 abstract "The development history of low thermal expansion superalloy has been reviewed in this paper. The basis of development for these kind of alloys was established by discovery of Invar effect and age-hardening In 1970's, it was provided a good chance for development of low thermal expansion superalloys for the rapid developing of aerospace industry and the shock of energy sources lack. The stress-accelerated grain boundary oxidation embritllement (SAGBO) was obviously improved by modification of compositions, such as strengthening by Nb and Ti, elimination of Al, the addition of Si for early commercial Fe-Co- Ni (IN 9xx) alloy series. Afterward the low thermal expansion superalloys were wide applied in aerospace. New exploring work continues for improving oxidation resistance and decreasing crack propagation rates of alloys. The results were to obtain Fe-Co-Ni-Al-Cr and Ni-Mo-Cr series alloys representative Inconel alloy 783 and HAYNES 242 respectively. These alloys achieve full oxidation resistance up to 750℃ . Therefore it showed provide high quality material for new aero-engines." @default.
- W2381490838 created "2016-06-24" @default.
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- W2381490838 date "2003-01-01" @default.
- W2381490838 modified "2023-09-23" @default.
- W2381490838 title "Development of low thermal expansion superalloys and their application in aerospace" @default.
- W2381490838 hasPublicationYear "2003" @default.
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