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
相关论文
共 48 条
[1]   COHERENT AND INCOHERENT EQUILIBRIA IN IRON-RICH IRON-ALUMINUM ALLOYS [J].
ALLEN, SM ;
CAHN, JW .
ACTA METALLURGICA, 1975, 23 (09) :1017-1026
[2]   THERMO-CALC & DICTRA, computational tools for materials science [J].
Andersson, JO ;
Helander, T ;
Höglund, LH ;
Shi, PF ;
Sundman, B .
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2002, 26 (02) :273-312
[3]   Phase equilibria and thermodynamics of the Fe-Al-C system: Critical evaluation, experiment and thermodynamic optimization [J].
Anh Thu Phan ;
Paek, Min-Kyu ;
Kang, Youn-Bae .
ACTA MATERIALIA, 2014, 79 :1-15
[4]   Thermodynamic assessment of the Al-Ni system [J].
Ansara, I ;
Dupin, N ;
Lukas, HL ;
Sundman, B .
JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 247 (1-2) :20-30
[5]  
Balanetskyy S, 2004, METALLOFIZ NOV TEKH+, V26, P407
[6]   Powder-X-ray diffraction analysis of the crystal structure of the η'-Al8Fe3 (η'-Al2.67Fe) phase [J].
Becker, H. ;
Amirkhanyan, L. ;
Kortus, J. ;
Leineweber, A. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 721 :691-696
[7]  
Becker H., 2017, INTERMETALLICS IN PR
[8]   THE STRUCTURE OF FEAL3 .1. [J].
BLACK, PJ .
ACTA CRYSTALLOGRAPHICA, 1955, 8 (01) :43-48
[9]   STRUCTURE REFINEMENT OF THE IRON-ALUMINUM PHASE WITH THE APPROXIMATE COMPOSITION FE2AL5 [J].
BURKHARDT, U ;
GRIN, Y ;
ELLNER, M ;
PETERS, K .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1994, 50 :313-316
[10]   Dilute magnetism and vibrational entropy in Fe2Al5 [J].
Chi, Ji ;
Zheng, Xiang ;
Rodriguez, Sergio Y. ;
Li, Yang ;
Gou, Weiping ;
Goruganti, V. ;
Rathnayaka, K. D. D. ;
Ross, Joseph H., Jr. .
PHYSICAL REVIEW B, 2010, 82 (17)