The limitations of continuous dynamic recrystallization (CDRX) of aluminium alloys

An approximate criterion for true CDRX is proposed for Al alloys bounded at low T by the limited low HAGB mobilities and at high T by high LAGB mobilities. It is shown that the shear mode is particularly important at high T and that conventional shaping processes (hot rolling, forging, extrusion) do not lend themselves to full CDRX.