Thermo-mechanical assessment of high entropy (Fe-Ni-Cx (X=0.3-0.5)‎, (Fe-Cr-Cx (X=0.3-0.5)‎ ternary alloys system using calphad method

Abstract EN

The thermodynamical assessment of high entropy alloys (Fe-Ni-Cx (x-03-0.5)), (Fe-Cr-Cx (X-0.3-0.5)) system is performed in this research work through fe-demo database and thermo-calc software package.

the high energy thermal analysis is manipulated for yield strength from FCC to BCC, precipitation from cementite to M-C3 (grain boundaries), crack susceptibility coefficient for Fe Ni-C,Fe-Cr-C ternary alloys system at (1900-3000)K temperature with constant atmospheric pressure of 10º pascal.

the highest crack susceptibility coefficient for Fe-Cr-C, Fe-Ni-C system is found 2.70, 2.60 with mass percent of C 0.11%, at 3000K of temperature with mass percent.

yield strength from FCC to BCC is found 798 MPa, 36 MPa for Fe-Cr-C, Fe-Ni-C ternary alloys at the cost of 2.2, 0.1 mass% C.

Phase transition is noted from cementite to M-C3 at 1346.77339 K.

FCC_A3 phases with 0.98772 moles and 0.01228 mole Of M-C3 with 0 moles of M₂C carbide phases observed.

the comprehensive line investigation of mechanical properties is justified with simulation/computational inputs.

the results are feasible for industrial sectors and metallurgical centers for operation.

the alloy shows equilibrium and good stability.