Modeling on the molar volume of the Al-Cu-Mg-Si system

被引:16
作者
Huang, Dandan [1 ,2 ]
Liu, Shuhong [2 ]
Du, Yong [2 ]
机构
[1] Guangxi Univ, Guangxi Key Lab Proc Nonferrous Met & Featured Ma, Nanning 530004, Peoples R China
[2] Cent South Univ, Sci & Technol High Strength Struct Mat Lab, Changsha 410083, Hunan, Peoples R China
来源
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2020年 / 68卷
基金
美国国家科学基金会;
关键词
Al-Cu-Mg-Si; Molar volume; Thermal expansion; Density; CALPHAD; CRYSTAL-STRUCTURE; PHASE-EQUILIBRIA; DIFFUSION-COEFFICIENTS; PRESSURE-DEPENDENCE; THERMAL-EXPANSION; LATTICE SPACINGS; LIQUID ALUMINUM; SOLID-SOLUTION; ATOMIC VOLUME; GAMMA-PHASE;
D O I
10.1016/j.calphad.2019.101693
中图分类号
O414.1 [热力学];
学科分类号
摘要
Molar volume is an important parameter for the microstructure evolution simulation in materials science. In this work, a comprehensive study on the temperature- and composition-dependents of the molar volume in the Al-Cu-Mg-Si system were performed using a CALPHAD (CALculation of PHAse Diagram)-type formalism. Based on the critical review of the available data on molar volume, molar volume of pure elements was described with a thermal expansion relation. Subsequently, molar volume of the binary solution phases was assessed via CALPHAD technique and the obtained description can reproduce the corresponding experimental data reasonably. Then, molar volume of ternary and higher-order solution phases was extrapolated from the binaries. Molar volumes of the stable compounds in the Al-Cu-Mg-Si system are also assessed in the similar model of the corresponding Gibbs energy expression. Using the established database for the quaternary Al-Cu-Mg-Si system, molar volume of some commercial aluminum alloys was predicted, which shows a good agreement with experimental data from literature.
引用
收藏
页数:14
相关论文
共 137 条
[1]   Surface tension and density measurement of liquid Si-Cu binary alloys [J].
Adachi, Masayoshi ;
Schick, Michael ;
Brillo, Juergen ;
Egry, Ivan ;
Watanabe, Masahito .
JOURNAL OF MATERIALS SCIENCE, 2010, 45 (08) :2002-2008
[2]  
Andersen AGH, 1940, T AM I MIN MET ENG, V137, P334
[3]  
Andrews JH, 1915, J I MET, V13, P249
[4]  
[Anonymous], 1990, Properties and Selection-Irons, Steels, and High-performance Alloys
[5]  
[Anonymous], SYSTEM ALUMINIUM MAG
[6]  
[Anonymous], 1974, METALS TECHNOL, DOI DOI 10.1179/030716974803287564
[7]  
[Anonymous], DOKL AKAD NAUK SSSR
[8]  
[Anonymous], 2013, ALUMINUM ALLOYS STRU
[9]  
[Anonymous], LIGHT METAL SYSTEM 4
[10]  
[Anonymous], J JPN I METALS