Negative mixing enthalpy solid solutions deliver high strength and ductility
Body-centred cubic refractory multi-principal element alloys (MPEAs), with several refractory metal elements as constituents and featuring a yield strength greater than one gigapascal, are promising materials to meet the demands of aggressive structural applications1–6. Their low-to-no tensile ductility at room temperature, however, limits their processability and scaled-up application7–10. Here we present a HfNbTiVAl10 alloy that shows remarkable tensile ductility (roughly 20%) and ultrahigh yield strength (roughly 1,390 megapascals). Notably, these are among the best synerg...
Source: nature.com