Journal
MATERIALS CHARACTERIZATION
Volume 162, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2020.110192
Keywords
Magnesium alloy; High strain rate deformation; Twinning; Texture; Recrystallization; EBSD
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Funding
- National Natural Science Foundation of China [51701121, 51825101]
- Shanghai Sailing Program [17YF1408800]
- Startup Fund for Youngman Research at SJTU [18X100040022]
- Science and Technology Commission of Shanghai Municipality [18511109302]
- Qinghai Provincial Science and Technology Key Program [2018-GX-A1]
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Recrystallization texture evolution in a high stain rate compressed Mg-1Zn alloy was investigated using electron backscattered diffraction (EBSD). Besides of the {10 (1) over bar2} tension twins (T), {10 (1) over bar1} compression twins (C) and {10 (1) over bar1}-{10 (1) over bar2} double twins (CT), the 53 degrees(10 (1) over bar0) tension-tension double twins (TT) and deviated 75 degrees(1170) tension twin boundaries (T') were observed in the as-deformed sample. When annealed, twinning-induced recrystallization occurred in C and CT twins at the very beginning, which was proved to strongly weaken the basal texture due to a strong orientation scattering by the recrystallized grains. In contrast, the recrystallization of TT twins weakened the basal texture insignificantly. In addition, the lenticular T twins tended to de-twin rather than recrystallize, which remained after 24 h annealing.
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