Title of article
Thermodynamic modeling of the Fe–Ti–V system
Author/Authors
Guo، نويسنده , , Cuiping and Li، نويسنده , , Changrong and Zheng، نويسنده , , Shu-Xiang and Du، نويسنده , , Zhenmin، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
6
From page
155
To page
160
Abstract
The thermodynamic optimization of the Fe–Ti–V system was carried out using the CALPHAD technique. The solution phases (liquid, bcc, fcc and hcp) were modeled as substitutional solution. The compound Fe2Ti with C14 structure had a solubility of 34 at% V at 1273 K and was described as (Fe,Ti,V)2(Fe,Ti,V) by a two-sublattice model in the Fe–Ti–V system. The compound FeTi with B2 crystal structure had a solubility of 9 at% V at 1273 K and was treated as (Fe,Ti,V)0.5(Fe,Ti,V)0.5(Va)3 in order to cope with the order–disorder transition between FeTi(B2) and bcc solid solution (bcc-A2). The sigma phase was treated as the formula (Fe,Ti,V)10(Fe,Ti,V)20 in the Fe–Ti–V system. A set of self-consistent thermodynamic parameters of the Fe–Ti–V system was obtained.
Keywords
Thermodynamic properties , CALPHAD technique , Fe–Ti–V system
Journal title
Calphad
Serial Year
2012
Journal title
Calphad
Record number
1816276
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