Thermodynamic modeling of the Al–Cr system
Thermodynamic modeling of the Al–Cr system
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DOI：
10.1016/j.jallcom.2007.06.046
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发表时间：
2008-07
影响因子：
6.2
通讯作者：
Yuh-Chirn Liang;Cuiping Guo;Changrong Li;Z. Du
中科院分区：
文献类型：
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作者：
Yuh-Chirn Liang;Cuiping Guo;Changrong Li;Z. Du
利用相图计算（CALPHAD）技术对Al-Cr系进行了评价。采用Redlich-Kister方程模拟了三种溶液相（液相、体心立方相、面心立方相）。采用二子点阵模型，将具有均匀性范围的金属间化合物Al 7 Cr，Al 11 Cr2，Al 4Cr，Al 8 Cr 5，AlCr 2分别处理为Al 7（Al，Cr），Al 11（Al，Cr）2，Al 4（Al，Cr），（Al，Cr）8（Al，Cr）5，（Al，Cr）（Al，Cr）2。得到了一组描述Al-Cr系各相吉布斯自由能随组成和温度变化的自洽热力学参数。
By means of calculation of phase diagram (CALPHAD) technique, the Al–Cr system was critically assessed. Three solution phases (liquid, body-centered cubic, face-centered cubic) were modeled with the Redlich–Kister equation. The intermetallic compounds Al7Cr, Al11Cr2, Al4Cr, Al8Cr5, AlCr2, which have a homogeneity range, were treated as the formulae Al7(Al,Cr), Al11(Al,Cr)2, Al4(Al,Cr), (Al,Cr)8(Al,Cr)5, (Al,Cr)(Al,Cr)2using two-sublattice model, respectively. A set of self-consistent thermodynamic parameters describing the Gibbs energy of each individual phase as a function of composition and temperature for the Al–Cr system was obtained.