Alloy Design and Solidification Microstructure of Ti-Zr-Hf-Ag-V Multi-Component Alloys with a Dual Bcc Structure

TiZrHfAgV0.2 0.2 (Ti 23.8 Zr 23.8 Hf 23.8 Ag 23.8 V 4.8 , at%) % ) high entropy alloys (HEAs) with a dual bcc structure were developed. Fine lamella structure was observed in the arc-melted ingots and melt-spun ribbons. The TiZrHfAgV0.2 0.2 HEAs with a dual bcc phase structure were designed by exploiting the concept of immiscibility of the constituent elements. The immiscibility of the constituent elements in the multi-component alloys was discussed using the mixing enthalpy (OHi-j) O H i-j ) matrix of the i-j elements, binary phase diagrams with liquid miscibility gap, and the thermodynamic calculations. [doi:10.2320/matertrans.MT-MA2024009] / matertrans.MT-MA2024009]