Modeling of Isothermal Dissolution of Precipitates in a 6061 Aluminum Alloy Sheet during Solution Heat Treatment

被引：1

作者：

Liu, Yong ^{[1
]}

Fang, Dongyu ^{[1
]}

Zhu, Bin ^{[1
]}

Wang, Yilin ^{[1
]}

Li, Shiqi ^{[2
]}

Zhang, Yisheng ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China

来源：

METALS | 2021年 / 11卷 / 08期

基金：

中国国家自然科学基金;

关键词：

modeling; dissolution; precipitate; 6061 aluminum alloy; solution heat treatment; finite-difference method; HOT FORMING PROCESS; MG-SI ALLOYS; HOMOGENIZATION; BEHAVIOR; PHASE; PARTICLES;

D O I：

10.3390/met11081234

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During the solution heat treatment (SHT) process of aluminum alloys, precipitates dissolve into the matrix. To predict the dissolution time, modeling of isothermal dissolution of precipitates in 6061 aluminum alloy during SHT was conducted. A precipitate dissolution model was established, and the flowchart of the modeling was designed as well. Then the explicit finite-difference method was employed to solve the dissolution model, and the mobile nodes method was used to deal with the moving interface. The simulation was based on real precipitates in 6061, and SHT experiments were conducted to validate the numerical model. The simulation results showed that the isothermal dissolution time of precipitates in 6061-T6 aluminum alloy at 560 degrees C is 11.6856 s. The dissolution time in the simulation was close to the experimental results, with an error of 16.7%, indicating that the modeling in this study was fairly reasonable and accurate. The error was caused by many factors, and the model should be improved.

引用

页数：13

共 28 条

[11] Flow and friction behaviors of 6061 aluminum alloy at elevated temperatures and hot stamping of a B-pillar [J].