Effect of Ag additions on the lengthening rate of Ω plates and formation of σ phase in Al-Cu-Mg alloys during thermal exposure

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• 作者：Yaru Zhou ; Zhiyi Liu ; ^{liuzhiyi@csu.edu.cn} ; Song Bai ; Puyou Ying ; Lianghua Lin
• 关键词：Ag additions ; Thermal exposure ; Ω phase ; Lengthening rate ; σ phase
• 刊名：Materials Characterization
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：123
• 期：Complete
• 页码：1-8
• 全文大小：1711 K
• 卷排序：123

文摘

Increasing Ag improved strength properties and thermal stability of the alloys. After exposure for 500 h, > 85% of the peak strength remained. The lengthening rate of Ω plates remained constant as Ag increased at 150 °C. Increasing Ag content facilitated the formation of σ phase.