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This work involves construction of phase diagrams of AlxHfNbTaTiZr refractory high entropy alloy (RHEA) with an objective to understand the phase stability of the alloy at different concentrations of Al,… Click to show full abstract
This work involves construction of phase diagrams of AlxHfNbTaTiZr refractory high entropy alloy (RHEA) with an objective to understand the phase stability of the alloy at different concentrations of Al, which is expected to stabilize the body-centred cubic (BCC) structure. The constructed hexanal phase diagrams of AlxHfNbTaTiZr RHEA shows that continuous BCC solid solution forms up to 1.5 mol of initial concentration of Al and any further increase in the Al concentration results in the formation of intermetallic phases. Further, the phase stability of AlxHfNbTaTiZr RHEA as a function of Al concentration has been discussed in correlation with the concerned Valence Electron Concentration parameter.
Journal Title: Transactions of the Indian Institute of Metals
Year Published: 2017
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