The influence of processing route on the plastic deformation of Al-Zn-Mg-Cu alloys

被引：14

作者：

Málek, P ^{[1
]}

Cieslar, M ^{[1
]}

机构：

[1] Charles Univ Prague, Dept Met Phys, CR-12116 Prague 2, Czech Republic

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 324卷 / 1-2期

关键词：

Al-based alloys; superplasticity; microstructure;

D O I：

10.1016/S0921-5093(01)01289-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A fine-grained microstructure of Al-Zn-Mg-Cu alloys was produced by several processing routes - by thermomechanical treatment of conventionally cast ingots, by modem powder metallurgy, and by severe plastic deformation in equal channel angular pressing. The plastic deformation of these materials was investigated in a temperature range between 523 and 773 K and the deformation characteristics were correlated with the results of microstructure investigation. The grain size and its stability at elevated temperatures were found to play the decisive role in the deformation behaviour of the alloys studied. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：90 / 95

页数：6

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