TY - JOUR
T1 - Investigation on recrystallization behavior of Ti-47Al-1.5Re-X (Cr, Mn, V, Nb) alloy during hot deformation
AU - Chen, Xiaofei
AU - Tang, Bin
AU - Wei, Beibei
AU - Zhang, Xiang
AU - Li, Jinshan
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/1/15
Y1 - 2023/1/15
N2 - The recrystallization behaviors of TiAl alloy play major roles in the microstructure control during the thermal–mechanical treatment, affected intensively by alloy composition. Hence, the effect of alloy elements (Cr, Mn, V, Nb) on the recrystallization of Ti-47Al-1.5Re-X alloy was investigated by thermal simulation compression. Cr and V could increase the DRX critical strain. Mn and Nb could broaden the lamellar spacing, and promote the onset of dynamic recrystallization (DRX). Meanwhile, the DRX kinetics was dramatically slowed by adding alloy elements, while Mn caused the least negative effect. Additionally, Cr, Mn, and V were demonstrated to expedite the SRX/MDRX kinetics by a qualitative analysis method, while Nb resulted in the opposite effect. Eventually, the comprehensive deformation performance was discussed, summarizing that Ti-47Al-1.5Re-2Mn alloy is the optimal deformed TiAl alloy.
AB - The recrystallization behaviors of TiAl alloy play major roles in the microstructure control during the thermal–mechanical treatment, affected intensively by alloy composition. Hence, the effect of alloy elements (Cr, Mn, V, Nb) on the recrystallization of Ti-47Al-1.5Re-X alloy was investigated by thermal simulation compression. Cr and V could increase the DRX critical strain. Mn and Nb could broaden the lamellar spacing, and promote the onset of dynamic recrystallization (DRX). Meanwhile, the DRX kinetics was dramatically slowed by adding alloy elements, while Mn caused the least negative effect. Additionally, Cr, Mn, and V were demonstrated to expedite the SRX/MDRX kinetics by a qualitative analysis method, while Nb resulted in the opposite effect. Eventually, the comprehensive deformation performance was discussed, summarizing that Ti-47Al-1.5Re-2Mn alloy is the optimal deformed TiAl alloy.
KW - Deformation and fracture
KW - Intermetallic alloys and compounds
KW - Recrystallization
UR - http://www.scopus.com/inward/record.url?scp=85141925007&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2022.133484
DO - 10.1016/j.matlet.2022.133484
M3 - 文章
AN - SCOPUS:85141925007
SN - 0167-577X
VL - 331
JO - Materials Letters
JF - Materials Letters
M1 - 133484
ER -