Experimental investigation and thermodynamic assessment of the Al-Fe system

被引:37
作者
Zienert, Tilo [1 ,2 ]
Fabrichnaya, Olga [1 ]
机构
[1] TU Bergakad Freiberg, Inst Mat Sci, Gustav Zeuner Str 5, D-09599 Freiberg, Germany
[2] TU Bergakad Freiberg, Inst Ceram Glass & Construct Mat, Agricolastr 17, D-09599 Freiberg, Germany
关键词
A; Intermetallics; C. heat capacity; Phase diagrams; Phase transitions; D; calorimetry; Thermal analysis; Thermodynamic modelling; CRYSTAL-STRUCTURE; HEAT-CAPACITY; THERMAL VACANCIES; X-RAY; PHASE; MODEL; EQUILIBRIA; REFINEMENT; ENTHALPY; FEAL2;
D O I
10.1016/j.jallcom.2018.01.316
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 heat capacity of epsilon (Fe5Al8) was determined between 1395 and 1455 K by DSC measurements. The homogeneity ranges of the intermetallic phases zeta (FeAl2), eta (Fe2Al5) and theta (Fe4Al13) in the temperature range between 1073 and 1435 K were determined using WDS measurements on annealed and quenched samples in the composition range between 56.0 and 75.3 at.% Al. The solidus and liquidus temperatures of all samples were determined using DTA. A CALPHAD-type assessment of the Al-Fe system was done based on latest experimental results on heat capacity of the intermetallic phases. (c) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码:795 / 811
页数:17
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