Characterization of the effects of different tempers and aging temperatures on the precipitation behavior of Al-Mg (5.25 at.%)-Mn alloys

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• 作者：Gaosong Yi^a ; ^{gaosong.yi@utah.edu} ; Kenneth C. Littrell^b ; Jonathan D. Poplawsky^c ; David A. Cullen^d ; Erik Sundberg^a ; Michael L. Free^a
• 关键词：Aluminum alloys ; Precipitation ; Atom-probe tomography ; Small angle neutron scattering
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：118
• 期：Complete
• 页码：22-35
• 全文大小：5774 K
• 卷排序：118

文摘

Al 5083 alloys of different tempers (H131 and H116) were aged at 50 °C and 70 °C for as long as 41 months; APT results indicated that GP zones and β” (Al3Mg) phase had formed in Al 5083 H116 aged at 50 °C for 24 months; A phase transformation process from GP zones to β’/β happened in Al 5083 H131 and H116 alloy samples aged at 70 °C; The effective diffusion coefficient of Mg in Al 5083 H131 is 1.8 times of that in Al 5083 H116 at 70 °C.