Structural and phase transformations in a new eutectic Al-Ca-Mn-Fe-Zr-Sc alloy induced by high pressure torsion

被引：10
|
作者：
Rogachev, S. O. [1 ]
Naumova, E. A. [1 ,2 ]
Sundeev, R., V [3 ]
Tabachkova, N. Yu [1 ]
机构：
[1] Natl Univ Sci & Technol MISIS, 4 Leninsky Pr, Moscow 119049, Russia
[2] MSTU STANKIN, 3a Vadkovskiy Pereulok, Moscow 127055, Russia
[3] Russian Technol Univ MIREA, 78 Vernadskogo Av, Moscow 119454, Russia
来源：
MATERIALS LETTERS | 2019年 / 243卷
关键词：
Eutectic Al-Ca alloy; High-pressure torsion; Nanocrystalline materials; Phase transformation; Microstructure; GRAIN-REFINEMENT; DEFORMATION; SI;
D O I：
10.1016/j.matlet.2019.02.043
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of high-pressure torsion (HPT) on the structural and phase transformations in a new eutectic aluminium alloy (94.9%Al; 3.5%Ca; 0.9%Mn; 0.5%Fe; 0.1%Zr; 0.1%Sc) was studied. HPT leads to the formation of a nanocrystalline structure with a predominant grain size of 11-34 nm. HPT causes the refining of eutectic [(Al) + Al4Ca] and the formation of nanoclusters and segregations. The phase composition of the alloy after HPT tends to the phase composition at elevated temperatures. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：161 / 164
页数：4
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