The sequence of precipitation in the Al-Mg-Si-Cu alloy AA6111

被引:0
作者
Xiang Wang
Shahrzad Esmaeili
David J. Lloyd
机构
[1] McMaster University,the Department of Materials Science and Engineering
[2] University of Waterloo,the Department of Mechanical Engineering
[3] Novelis Global Technology Centre,undefined
来源
Metallurgical and Materials Transactions A | 2006年 / 37卷
关键词
Differential Scanning Calorimetry; Material Transaction; HRTEM; HRTEM Image; Habit Plane;
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学科分类号
摘要
The preciptation behavior of the aluminum alloy AA6111 in the advanced stages of aging has been studied using differential scanning calorimetry (DSC), transmission electron microscopy (TEM), and high-resolution TEM (HRTEM). The results have demonstrated the formation of various precipitate types and morphologies of quaternaryQ phase andβ (Mg2Si) families at the peak-aged condition and during overaging at different temperatures. The work has clarified the sequence ofQ phase formation and showed evidence for a new morphology of this phase. The sequence of precipitation in AA6111 is elaborated in light of the new findings.
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页码:2691 / 2699
页数:8
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