Texture development in a cold-rolled and annealed body-centered-cubic Mg-Li alloy

The rolling and annealing textures formed in bcc Mg 14 wt pet Li have been investigated and compared with interstitial-free (IF) and more heavily alloyed ferritic steel rolled at the same temperature. The α fiber texture component ( //rolling direction) is very strong after 90 pet rolling at room temperature; however, there is evidence that the y fiber ({111}//rolling plane) weakens with increasing rolling strain to give a peaklike texture centered on {111} . A rarely found cold rolling fiber texture has been identified, which has {100}// rolling plane and peaks at {100} . Annealing at 200 °C very rapidly produces {554} , which gives way to components near {111} on grain growth. The á fiber is destroyed by recrystallization; however, the {100}//rolling plane fiber shifts intensity from the as-rolled orientation {100} to {100} . Since texture largely determines drawability, the best that can be achieved in terms of press performance of this alloy is most likely a Lankford parameter of unity. [PUBLICATION ABSTRACT]