Journal
MATERIALS LETTERS
Volume 293, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2021.129695
Keywords
Al-Cu-Li alloy; Homogenization; Microstructure; Phase transformation
Funding
- 2018 Key Research and Development Project of Shandong Province [2018CXGC0403]
- State Scholarship Fund by China Scholarship Council
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The microstructure of homogenized Al-Cu-Li alloy is significantly influenced by cooling rates, leading to different phase compositions in air-cooled and furnace cooled samples.
The microstructure of homogenized Al-Cu-Li alloy is greatly affected by cooling rates. The air-cooled sample is dominated by high temperature precipitated T (Al20Cu2Mn3) phase and beta' (Al3Zr) phase, accompanied by naturally aged delta' (Al3Li) phase. But for the furnace cooled sample, except for the T phase and delta'/beta' phase, the predominant phases are numerous micrometer-scale T-1 (Al2CuLi) phase and some of 0' (Al2Cu) liked phase. (C) 2021 Elsevier B.V. All rights reserved.
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