Effect of Homogenization Treatment Regime on Microstructure, Recrystallization Behavior, Mechanical Properties, and Superplasticity of Al-Cu-Er-Zr Alloy

被引：22
|
作者：
Amer, S. M. [1 ,2 ]
Mikhaylovskaya, A. V. [1 ]
Barkov, R. Yu. [1 ]
Kotov, A. D. [1 ]
Mochugovskiy, A. G. [1 ]
Yakovtseva, O. A. T. [1 ]
Glavatskikh, M. V. [1 ]
Loginova, I. S. [1 ]
Medvedeva, S. V. [1 ]
Pozdniakov, A. V. [1 ]
机构：
[1] Natl Univ Sci & Technol MISIS, Leninskiy Pr 4, Moscow 119049, Russia
[2] Al Azhar Univ, Min Met & Petr Engn Dept, Fac Engn, Cairo 11371, Egypt
来源：
JOM | 2021年 / 73卷 / 10期
基金：
俄罗斯科学基金会;
关键词：
STRAIN RATE SUPERPLASTICITY; PRECIPITATION EVOLUTION; DEFORMATION MECHANISMS; COARSENING RESISTANCE; DIFFUSION CREEP; SELF-DIFFUSION; GRAIN-SIZE; MG; SC; PARTICLES;
D O I：
10.1007/s11837-021-04766-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Aluminum-based alloys with advanced processing and service properties are required for the automotive and airspace industries. The current study focuses on the microstructure, recrystallization behavior, and elevated- and room-temperatures tensile properties of the novel Al-Cu-Er-Zr-based alloy pretreated using different homogenization annealing regimes. Aluminum solid solution, Al8Cu4Er phases of crystallization origin, and nanoscale L1(2)-Al-3(Er,Zr) precipitates were observed in the studied alloy. The alloy exhibited a non-recrystallized structure after annealing of cold-rolled sheets at 300 degrees C, with yield strength of 300 MPa and ultimate tensile strength of 330 MPa at room temperature. The fine-grained structure of the alloy provided superplasticity with elongation to failure up to 450% in the temperature range of 550 degrees C to 605 degrees C and a strain rate range of 10(-3) s(-1) to 10(-2) s(-1).
引用
收藏
页码：3092 / 3101
页数：10
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