Thermodynamic modelling of the Ti-Mn-N system in view of a new thermodynamic description for the Ti-Mn system

This publication doesn't include Faculty of Arts. It includes Central European Institute of Technology. Official publication website can be found on muni.cz.

Authors

BROŽ Pavel PREMOVIC Milena VŘEŠŤÁL Jan PAVLŮ Jana ROGL Peter Franz

Year of publication 2016
Type Conference abstract
MU Faculty or unit

Central European Institute of Technology

Citation
Description The Ti-Mn-N system plays a significant role for technically important alloys. This system has not been experimentally and theoretically studied in the past. This work presents a thermodynamic modelling of this ternary system based on thermodynamic assessments of the constitutive binary systems Mn-N and Ti-N and a new re-assessment of the Ti-Mn system, supported by hitherto unpublished experimental data. Because the binary Ti-Mn system is the crucial system for many applications like hydrogen storage materials, titanium aluminum duplex alloys with high strength intermetallics for aerospace and turbine applications etc., careful thermodynamic re-optimization respecting new ab-initio data for the Laves phase TiMn2 (C14) and new experimental data has been performed first to ensure correct phase relations from this binary sub-system. The problem of the modelling of phase equilibria in the ternary Ti-Mn-N system is discussed in view of the new thermodynamic description of the Ti-Mn system.
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