Journal
MATERIALS CHARACTERIZATION
Volume 118, Issue -, Pages 363-369Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2016.06.014
Keywords
Magnesium alloy; Twinning; Dynamic recrystallization; Microstructure; Texture
Categories
Funding
- National Natural Science Foundation of China [51271118]
Ask authors/readers for more resources
Twinning plays an important role in the dynamic recrystallization (DRX) of AZ31 magnesium alloy. To evaluate the effect and the underlying mechanism of twinning, we studied the microstructure and texture evolution of pre-compressed extension twin (ET) and contraction twin (CT) samples under uniaxial compression at 250 degrees C at a strain rate of 0.001/s. The results suggested that favorable nucleation sites for DRX grains were contraction or double twin boundaries of CT sample rather than extension twin boundaries of ET sample. Based on the different textures in ET and CT samples after hot deformation, we demonstrate that the pre-existing twins can greatly affect the grain orientations of DRX grains such as in the case of CT sample where DRX grains exhibited new orientations after hot deformation. (C) 2016 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available