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Date of Publication:2022-10-06

Journal:金属学报

Affiliation of Author(s):海洋科学与技术学院

Volume:38

Issue:4

Page Number:393-396

ISSN No.:0412-1961

Abstract:The mechanical characteristics and microstructures of EMC and continuous casting (CC) 2024 aluminum alloys are analyzed not only in as-cast condition but also in aged one by optical microscope, differential scanning calorimetry and transmission electron microscopy. It is found that the hardness of EMC specimens increases one time than that of CC ingot and the fatigue property of EMC ingot is three times as high as CC one in as-cast state. The higher enthalpy peak occurring in the DSC curves expresses that the precipitation hardening phase more easily forms in EMC specimens than in CC ones during the heating process.

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