Effect of scandium on recrystallization of aluminum and its alloys

被引：28

作者：

Rostova, TD ^{[1
]}

Davydov, VG ^{[1
]}

Yelagin, VI ^{[1
]}

Zakharov, VV ^{[1
]}

机构：

[1] All Russia Inst Light Alloys, RU-121596 Moscow, Russia

来源：

ALUMINIUM ALLOYS: THEIR PHYSICAL AND MECHANICAL PROPERTIES, PTS 1-3 | 2000年 / 331-3卷

关键词：

Al alloys; aluminium; nonrecrystallized structure; recrystallization; scandium;

D O I：

10.4028/www.scientific.net/MSF.331-337.793

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For the last 15 years about 15 commercial Sc-bearing aluminum alloys have been developed in Russia. The main purpose of making scandium addition to aluminum alloys is an improvement in strength properties due to retention of a nonrecrystallized structure in heat-treated semiproducts. Scandium is the most effective element-antirecrystallizer for aluminum alloys and it is superior to other well-known additions-antirecrystallizers (zirconium, chromium, manganese). Making a small scandium addition results in a dramatic increase in a recrystallization temperature of wrought semiproducts (even in the case of cold-rolled sheets), which exceeds a hearing temperature for quenching and annealing. As a result, all semiproducts retain a nonrecrystallized structure after heat treatment. The present paper covers experimental data showing the effect of scandium on recrystallization of aluminum and its alloys.

引用

页码：793 / 798

页数：6