Structure and annealing behavior of an Al-Mg-TM alloy processed by equal channel angular pressing

被引：8

作者：

Avtokratova, E. V. ^{[1
]}

Mukhametdinova, O. E. ^{[1
]}

Sitdikov, O. Sh. ^{[1
]}

Markushev, M. V. ^{[1
]}

Murty, S. V. S. N. ^{[2
]}

Prasad, M. J. N. V. ^{[3
]}

Kashyap, B. P. ^{[3
]}

机构：

[1] RAS, Inst Met Superplast Problems, Khalturin St 39, Ufa 450001, Russia

[2] Vikram Sarabhai Space Ctr, Trivandrum 695022, Kerala, India

[3] Indian Inst Technol, Bombay 400076, Maharashtra, India

来源：

LETTERS ON MATERIALS-PIS MA O MATERIALAKH | 2014年 / 4卷 / 02期

关键词：

aluminum alloy; severe plastic deformation; ultrafine-grained structure; annealing; dispersoids;

D O I：

10.22226/2410-3535-2014-2-93-95

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of equal-channel angular pressing (ECAP) at 325 degrees C to a strain, e similar to 10, and post-ECAP annealing for 1 hr in the temperature range of 350-520 degrees C on structure of the cast and homogenized Al-Mg-Sc-Zr alloy 0157 degrees C were analyzed. It is found that annealing of ECAP processed material containing near homogeneous ultrafine-grained structure with similar to 1 mu m grain size led to normal grain growth, accompanied by coarsening of Al-3(Sc,Zr) dispersoids. As compared to the cast alloy, the coarsening of dispersoids in the deformed alloy started at lower temperature and occurred more intensely, and resulted in more rapid loss of their coherency with surrounding matrix.

引用

页码：93 / 95

页数：3

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