Microstructural stability of binary AlLi alloys at low temperatures

作者: B. Noble , S.J. Harris , K. Dinsdale

DOI: 10.1016/S1359-6454(96)00294-7

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摘要: Abstract Binary AlLi alloys containing 6.5, 9.5 and 11.5 at.%Li have been aged for 24 h at 423 K then subjected to long term exposure 343, 373 403 K. Proof stress fracture energy measured as a function of time, showing that little or no embrittlement occurs 343 K, but the undergo increasing degrees temperature is raised Transmission electron microscopy electrical resistivity measurements show an results in very slow precipitation fine δ′, high temperatures dominant process growth pre-existing δ′ particles produced by pre-age. These are discussed terms kinetics importance quenched-in vacancies.

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