Effect of aging temperature on microstructure and mechanical properties of different rolling orientations in novel Al–Li alloy
作者： Z. L. Du , W. D. Zeng , W. H. Yang , C. Zhang , C. L. Shi
DOI: 10.1179/1743284713Y.0000000461
关键词:
摘要: AbstractMicrostructure and properties of different rolling orientation with aging temperature varying in a newly developed Al–Li alloy was investigated by transmission electron microscopy (TEM) analysis. Sheets experimental were solution treated at 510°C for 2 h. Predeformation ∼3% stretched the 0 90° angle respect to original before treatment. All specimens aged 35 h 138, 143, 148, 153, 158 163°C respectively. Tensile along previous predeformation. The results showed that main strengthening phases δ′ (Al3Li), θ′ (Al2Cu)/θ″ (Guinier–Preston II zone), δ′/β′ (Al3Zr) T1 (Al2CuLi) phase. Among above, effect phase surpassed others. Moreover, very little cubic σ (Al5Cu6Mg2) observed alloy. microstructure evolution similar via comparing sheets directions. At initial stage a...
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