Abstract
Deformation twinning induces stress in alloy matrixes, but stress relaxation modes have not been identified in the microstructure of hexagonal-close-packed alloys. We investigated this issue in a deformed Mg alloy during heating. The {10–12} deformation twinning induced stress in the Mg–Y–Nd–Zn alloy matrix, caused lattice distortion near the twin boundary and generation of stacking faults from the step at the twin boundary. At 400°C, the kink band formed in the distortion region and the stacking faults formed long-period stacking structures, relaxing the stress induced by {10–12} deformation twinning.
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