High strength and ductility of Al-Si-Mg alloys fabricated by deformation and heat treatment

被引：36
作者：
Cheng, W. [1 ]
Liu, C. Y. [1 ]
Huang, H. F. [1 ]
Zhang, L. [1 ]
Zhang, B. [2 ]
Shi, L. [1 ]
机构：
[1] Guilin Univ Technol, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Guilin 541004, Peoples R China
[2] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2021年 / 178卷
关键词：
Al-Si-Mg alloys; Friction stir processing; Heat treatment; Microstructure; Mechanical property; MECHANICAL-PROPERTIES; DYNAMIC PRECIPITATION; CU ALLOY; MICROSTRUCTURE; RECRYSTALLIZATION; TEMPERATURE; EVOLUTION; BEHAVIOR;
D O I：
10.1016/j.matchar.2021.111278
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Al-Si-Mg alloys with 7% and 12% (mass ratio) Si contents were subjected to friction stir processing (FSP), warm rolling (WR), and heat treatment. The effects of process routes on the microstructure and mechanical properties of the Al-Si-Mg alloys were studied. FSP could break the eutectic structure and lead to the uniform distribution of the generated fine Si particles in the two Al-Si-Mg alloys. WR could effectively decrease the porosity of the Al-Si-Mg alloys. T6 could lead to the precipitation of the beta'' phases in these alloys. The structure characteristics, including fine grain and second phases, uniformly distributed Si particles, high density of beta'' phases, and low porosity, resulted in the satisfactory mechanical properties of the Al-Si-Mg alloys after FSP, WR, and T6 treatments.
引用
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页数：10
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