Experimental Study of Phase Composition of B-Fe-Mn-V Alloys and Thermodynamic Calculations of Phase Equilibria in the B-Mn-V and B-Fe-Mn-V Systems

0494621 - ÚFM 2019 RIV GB eng J - Journal Article
Homolová, V. - Kepič, J. - Zemanová, Adéla - Zobač, O.
Experimental Study of Phase Composition of B-Fe-Mn-V Alloys and Thermodynamic Calculations of Phase Equilibria in the B-Mn-V and B-Fe-Mn-V Systems.
Advances in Materials Science and Engineering. Roč. 2018, JUN (2018), č. článku 3950980. ISSN 1687-8434. E-ISSN 1687-8442
Institutional support: RVO:68081723
Keywords : iron alloys * iron compounds * manganese alloys * phase composition * phase equilibria * SEM * thermodynamics * DTA
OECD category: Thermodynamics
Impact factor: 1.399, year: 2018

Phase compositions of B-Fe-Mn-V alloys were studied by several experimental methods (DTA measurement, X-ray diffractions, and scanning electron microscopy). Besides the experimental study of the quaternary system, thermodynamic modelling of the ternary B-Mn-V system by the Calphad method and thermodynamic calculations for the quaternary B-Fe-Mn-V system were performed. Calculations for the quaternary system are based on the ternary subsystems (B-Mn-V, B-Fe-V, B-Fe-Mn, and Fe-Mn-V). Boron is modelled as an interstitial element in all solid solutions of vanadium, manganese, and iron. Very good agreement between experimental results and thermodynamic calculations was achieved. The created thermodynamic database is suitable for thermodynamic calculations of phase diagrams for all the ternary subsystems and also for the B-Fe-Mn-V quaternary system.
Permanent Link: http://hdl.handle.net/11104/0287764