New evidence for GP zones in binary AlLi alloys

作者: J.M. Papazian , C. Sigli , J.M. Sanchez

DOI: 10.1016/0036-9748(86)90126-2

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摘要: Abstract The DSC results described above are thought to present a relatively complete and persuasive picture of the characteristics an AlLi phase which is metastable with respect δ′. not immediately after quenching; it appears at room temperature kinetics that similar those GP zones in other Al base alloys, dissolves 75–150°C range enthalpy typical zones, its dissolution also zones. measurements artifact caused by δ′, significantly more stable probably present. Finally, existence was predicted independently on sound theoretical grounds. According results, optimum conditions for observation would be long-term aging 2 2.5 wt% alloy 50 75°C region; TEM examinations such samples currently underway.

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