Effects of nanosized precipitates on the Portevin-Le Chatelier behavior: Model prediction and experimental verification

The influence of homogenously-distributed nanosized Al3(Sc, Zr) precipitates on the Portevin-Le Chatelier (PLC) behavior in a model AlMgScZr alloy was investigated by experimental characterization and theoretical modeling. A remarkable advantage of the selected alloy is that the solute Mg concentration remains unchanged during the precipitation of Al3(Sc, Zr) nanoparticles, which effectively rules out the influence of solute concentration …