Thermodynamic Reoptimization of the Fe-P System

被引：17

作者：

Cao Zhan-Min ^{[1
]}

Wang Kun-Peng ^{[1
]}

Qiao Zhi-Yu ^{[1
]}

Du Guang-Wei ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2012年 / 28卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Fe-P system; CALPHAD approach; Phase diagram; Thermodynamic optimization; CRYSTAL-STRUCTURE; IRON-PHOSPHORUS; PHASE-EQUILIBRIA; TERNARY-SYSTEM; SOLUBILITY; ELEMENTS;

D O I：

10.3866/PKU.WHXB201111172

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Fe-P binary system was reoptimized by means of the CALPHAD approach. The Gibbs energy descriptions of every phase in the Fe-P binary system were optimized based on the latest experimental thermodynamic and phase diagram data. The solution phase (liquid, alpha-Fe, and gamma-Fe) was described by the substitutional solution approximation and the other phases (Fe3P, Fe2P, FeP, FeP2, and FeP4) were treated as the stoichiometric compounds. The optimization was carried out using the Thermo-Calc (R) software package. The agreement of the optimized phase diagram and thermodynamic data with experimental results is good, and a self-consistent and reliable thermodynamic dataset is obtained to allow further optimization of Fe-based, P-containing multicomponent alloy systems.

引用

页码：37 / 43

页数：7

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