Publication details

Physical properties of TiMn2 and interaction with refractory TiN (system Ti-Mn-N)

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Authors

BROŽ Pavel ROGL Gerda YAN Xin-Lin PREMOVIC Milena SOPRUNYUK Viktor HEINRICH Patrick-Rene BAUER Ernst SCHRANZ Wilfried ROGL Peter Franz

Year of publication 2018
Type Article in Periodical
Magazine / Source Journal of Alloys and Compounds
MU Faculty or unit

Faculty of Science

Citation
Doi http://dx.doi.org/10.1016/j.jallcom.2017.12.343
Keywords Transition metal alloys and compounds;Nitride materials;Liquid-solid reactions;Phase diagrams;Mechanical properties;Thermodynamic modelling
Description Mechanical and physical properties have been determined for polycristalline TiMn2. Based on experimental data on 30 alloys prepared by various methods phase relations in the ternary system Ti-Mn-N have been established and calculated for the isothermal section at 900 °C. The thermodynamic modelling relies on existing thermodynamic assessments of the Mn-N and Ti-N binary systems and on our recent modelling of the Ti-Mn system, which is characterized by a significantly higher thermodynamic stability of the C14-type Laves phase than hitherto assumed in the literature. The higher stability ensures consistency with the experimental phase triangulation in Ti-Mn-N. The high melting refractory solution TiN1-x dominates the liquidus surface pushing all monovariant melting lines close to the Ti-Mn binary.
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