Improvement of strength-ductility balance of Al-Ca-Mn-Fe alloy by severe plastic deformation

被引：6
|
作者：
Rogachev, S. O. [1 ]
Zavodov, A. V. [2 ]
Naumova, E. A. [1 ]
Chernenok, T. V. [1 ]
Lukina, E. A. [2 ]
Zadorozhnyy, M. Yu. [1 ,3 ]
机构：
[1] NUST MISIS, Moscow, Russia
[2] All Russian Sci Res Inst Aviat Mat VIAM, Moscow, Russia
[3] Moscow Polytech Univ, Moscow, Russia
来源：
MATERIALS LETTERS | 2023年 / 349卷
关键词：
Severe plastic deformations; High-pressure torsion; Aluminum alloy; Microstructure; Mechanical properties; MECHANICAL-PROPERTIES; PRESSURE; MICROSTRUCTURE; EVOLUTION; LA; CE;
D O I：
10.1016/j.matlet.2023.134797
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The as-cast Al-Ca-Mn-Fe alloy was processed by the high-pressure torsion (HPT) technique. HPT of the samples 20 mm in diameter was carried out at room temperature through 3 revolutions. HPT resulted in the formation of a predominantly nano-grain structure and almost complete disappearance of eutectic particles in the structure. As a result of HPT, a 5-fold increase in strength and a 1.5-fold increase in the relative elongation of the alloy were achieved. The relationship between the achieved complex of mechanical properties and microstructure features is discussed.
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页数：4
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