Calculation of Phase Equilibrium in NbC-Manganese Steel System for Carbide Steels Development
Journal Title: Фізика і хімія твердого тіла - Year 2014, Vol 15, Issue 3
Abstract
Niobium carbide due to its high microhardness is an perspective refractory compound for using as ceramic phase in tungsten free cermets – carbide steels. In this study phase equilibrium in NbC (60 % vol.) – manganese steel system was carried out by computational thermodynamics with the use of sublattice model. The results of calculations of system equilibrium are represented as polythermal section and solubility isotherms. It is shown that increasing of manganese content in system (steel) promotes solubility of niobium in austenite and iron and manganese in carbide phase. Calculated critical points of polythermal section can be used for choosing heat treatment conditions of carbide steels with manganese steel binder.
Authors and Affiliations
P. M. Prysyazhnyuk
Keywords
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