摘要
Selection of appropriate thermomechanical processing parameters is crucial for control of the crystallographic texture and grain size distribution in wrought magnesium alloys, which in turn dictate their mechanical properties. In this work, the recrystallization behavior of binary Mg-Zn alloys are examined after warm rolling as a function of alloy content and heat treatment temperature. The Avrami exponent increased with increasing heat treatment temperature up to the Mg Zn solvus, while the strength of the recrystallization texture decreased.Neither the Avrami exponent nor the qualitative trends in texture evolution were sensitive to the Zn alloying content in the examined range.EBSD and transmission electron microscopy observations revealed that the changes in texture and recrystallization kinetics could be attributed to differences in the nucleation behavior of basal and off-basal orientations.
基金
the University of California Santa Barbara for the support of a Regents’ Special Fellowship
the support of Office of Naval Research Grant number N00014-17-1-2810
supported by the MRSEC Program of the NSF under Award No. DMR 1121053
a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org)
partially supported by the IMI Program of the National Science Foundation under Award No. DMR 08-43934
the support of the Australian Research Council。