Number of the records: 1
Use of third generation data for the elements to model the thermodynamics of binary alloy systems: Part 1-The critical assessment of data for the Al-Zn system
- 1.
SYSNO ASEP 0531544 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Use of third generation data for the elements to model the thermodynamics of binary alloy systems: Part 1-The critical assessment of data for the Al-Zn system Author(s) Dinsdale, A. (GB)
Zobač, O. (AT)
Kroupa, Aleš (UFM-A) RID, ORCID
Khvan, A. (RU)Number of authors 4 Article number UNSP 101723 Source Title Calphad - Computer Coupling of Phase Diagrams and Thermochemistry. - : Elsevier - ISSN 0364-5916
Roč. 68, MAR (2020)Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords CALPHAD assessment ; Al-Zn system ; 3rd generation unary data ; Concentration dependence of the Einstein ; temperature Subject RIV BJ - Thermodynamics OECD category Thermodynamics R&D Projects GC18-25660J GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UFM-A - RVO:68081723 UT WOS 000521509200043 EID SCOPUS 85077675548 DOI 10.1016/j.calphad.2019.101723 Annotation Over the last four years there has been a renewed interest in the development of new critically assessed data using physically based models. Nearly all work so far has been concerned with the critical assessment of data for the elements. This has involved the selection of Einstein or Debye temperatures for the stable crystalline phases and the liquid phase and associated parameters. However, until now, these data have not been extended in a comprehensive way to model the thermodynamic properties of binary, ternary and multicomponent systems. In this paper the way in which the parameters underlying these physical models vary with composition is explored. This includes a method to define the Einstein temperature for metastable phases of the elements and its relation to the so-called lattice stabilities used in the past, and the variation of the Einstein temperature with composition to account for the composition dependence of the excess entropy. This approach is demonstrated for the Al-Zn system which shows extensive regions of solid solution and complete miscibility in the liquid phase. Here Einstein temperatures are derived for Al in the HCPZN phase and Zn in the FCC_A1 phase together with parameters describing the variation of the Einstein temperature with composition for the HCP_ZN, FCC_A1 and liquid phases. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2021 Electronic address https://www.sciencedirect.com/science/article/pii/S0364591619302846?via%3Dihub
Number of the records: 1