Nanostructures in Al-based alloys after severe plastic deformation

被引：0

作者：

Dobatkin, SV ^{[1
]}

Zakharov, VV ^{[1
]}

Valiev, RZ ^{[1
]}

机构：

[1] Technol Univ, Moscow State Steel & Alloys Inst, Moscow 119991, Russia

来源：

RECRYSTALLIZATION AND GRAIN GROWTH, VOLS 1 AND 2 | 2001年

关键词：

severe plastic deformation; nano- and submicrostructure; aging; Al alloys;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The structure and microhardness after severe plastic deformation (SPD) in torsion under high pressure of Al-Cu-Mg alloy 2024, binary Al-Sc alloys with contents of Sc-0,14%, 0,4% and 0,55%, and also industrial Al-Mg-Sc alloys 01515, 01535, 01545 and 01570 are investigated. At SPD of quenched alloy 2024 with supersaturated solid solution nanocrystalline structure with the size of a grain 50 nm is obtained due to strain aging. At SPD of binary Al-Sc alloys the only submicrocrystalline structure is formed. Addition more than 3% Mg in Al-Sc alloy results in formation of nanostructure during SPD. The minimal size of a grain - 40 nm is revealed in alloy Al-5,9%Mg-0,3%Sc.

引用

页码：509 / 514

页数：6

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