Experimental investigation and thermodynamic calculation of the Al-Mg-Zn system
Experimental investigation and thermodynamic calculation of the Al-Mg-Zn system
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DOI：
10.1016/s0040-6031(97)00458-9
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发表时间：
1998-04-27
影响因子：
3.5
通讯作者：
Aldinger, F
中科院分区：
文献类型：
--
作者：
Liang, P;Tarfa, T;Aldinger, F
在此基础上，利用EPMA对三元Al-Mg-Zn合金进行了实验研究，以补充AI-Mg和Mg-Zn相三元溶解度的缺失数据，并提高对三元tau和ph相均匀性范围扩展的认识。结合实验数据以及本构、热力学和晶体学方面的文献资料，得到了Al-Mg-Zn体系的热力学描述。二元金属间相被模拟为具有三元溶解度。三元相的晶体结构为（Mg）（26）（Mg, Al）(6)(Al, Zn, Mg)(48)(Al)(1)，具有立方对称。ph相由Mg-6(Al, Zn)(5)亚晶格式描述。(C) 1998爱思唯尔科学有限公司
On the basis of a critical assessment, experimental investigations by EPMA on ternary Al-Mg-Zn alloys were specifically performed to provide missing data of the ternary solubilities of the AI-Mg and Mg-Zn phases as well as to improve the knowledge of the extensions of the homogeneity ranges of the ternary tau- and Phi-phases. A thermodynamic description for the Al-Mg-Zn system was obtained taking into account those experimental data together with constitutional, thermodynamic and crystallographic literature information. The binary intermetallic phases are modelled to have ternary solubilities. The ternary tau-phase is modelled according to its crystal structure with cubic symmetry as (Mg)(26)(Mg, Al)(6)(Al, Zn, Mg)(48)(Al)(1) in the compound-energy-formalism. The Phi-phase is described by the sublattice formula Mg-6(Al, Zn)(5). (C) 1998 Elsevier Science B.V.