Fig. 3: Superior high-temperature strength of the LPBF AlLaScZr alloy.

a Uniaxial tensile stress–strain curves of the AlLaScZr alloys at RT and elevated temperatures; b Plot comparing the tensile yield strength (YS) at room temperature (RT) with that at 300 °C for the LPBF AlLaScZr alloy and other commercial and LPBF aluminium alloys (Note: the YS of the commercial Al alloys at 300 °C is taken by linearly interpolation of the YS at 260 °C (500 °F) and 316 °C (600 °F)); c Specific YS as a function of temperature and d YS normalised by the value at RT as a function of temperature normalised by the alloy’s melt point for the LPBF AlLaScZr alloy in comparison with several typical Al, Ti, stainless steels, and Ni-based alloys, respectively (c, d share the same figure legend).