Superplastic properties of an Al-Cu-Li-Zr alloy

Fine‐structure superplasticity in materials

“…The processing steps required, however, have to be modified and the precise physical mechanism leading to fine grain sizes may be different, i.e., in some cases static recrystallization is observed, in others dynamic recrystallization occurs [167]. For example, Al-Cu-Li-Mg-Zr alloys manufactured by ingot metallurgy were restricted to levels of Zr from 0.12 to 0.18% [168]. The alloys were processed by an over-age practice and were also shown to be superplastic.…”