[T14] High Temperature Materials

[15F-T14-01] Thermodynamic Based Alloy Fabrication of Copper Based Bulk Metallic Glasses for Surface Coating

*N. Dhokey¹, R. Bhosale¹, T. Patil¹, S. Gowtam² (1.COEP Technological University, India, 2.DRDO Ambarnath, India)

Keywords:Bulk metallic glasses (BMGs), Gas atomization, Phase diagram

Bulk metallic glasses (BMGs) are a feasible alternative to traditional materials owing to their great mechanical strength and corrosion resistance. The present investigation employed the thermodynamic guidelines involved model to forecast the BMG of the Cu-Ti-Ni-Sn-Al-Si-Mn (C51) system. By maximizing the enthalpy of chemical mixing and mismatch entropy within a statistically constructed configurational entropy range, the BMG was anticipated. Induction melting was used to fabricate metallic glass with the intended composition, Cu₃₀Ti₂₀Ni₁₀Sn₁₀Al₁₀Si₁₀Mn₁₀, which is near the eutectic point. C51 powder was created using gas atomization. The effects of atomization and alloy composition on glass formation, oxygen content, particle shape, and flowability were examined. XRD and TEM were used to confirm that metallic glass was amorphous. The phase diagram and free energy of the liquid phase of C51 were calculated by Thermo-Calc software. Our results contribute to the investigation of C51 alloy as a promising candidate for many industrial applications.