Joint Effect of Scandium, Chromium, and Zirconium on the Aging and Recrystallization of Aluminum Alloys

被引：1
|
作者：
Rokhlin, L. L. [1 ]
Bochvar, N. R. [1 ]
Leonova, N. P. [1 ]
Tarytina, I. E. [1 ]
机构：
[1] Russian Acad Sci, Baikov Inst Met & Mat Sci, Leninskii Pr 49, Moscow 119991, Russia
来源：
RUSSIAN METALLURGY | 2011年 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S0036029511010149
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Metallography and electrical resistivity and hardness measurements are used to study the aging and recrystallization of Al-rich Al-Sc-Cr-Zr alloys with 0.1-0.4% Sc, 1.0% Cr, and 0.2% Zr. During aging at 350 degrees C, the hardness of the alloys is found to increase substantially even after 0.5-h aging as compared to that of the deformed state. Variations of the hardness and electrical resistivity of all alloys exhibit similar behavior; however, the higher the scandium content in the alloys, the higher the strengthening effect reached after aging for 2-4 h. Combined small scandium, chromium, and zirconium additions to aluminum are shown to increase its recrystallization temperature; therewith, the effect of scandium on the increase in the temperatures of the onset and finish of recrystallization is more substantial.
引用
收藏
页码：55 / 59
页数：5
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