Static coarsening behavior of equiaxed α phase in Ti−8Al−1Mo−1V alloy
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In: Transactions of Nonferrous Metals Society of China (English Edition), Vol. 31.2021, No. 6, 28.06.2021, p. 1628-1640.
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TY - JOUR
T1 - Static coarsening behavior of equiaxed α phase in Ti−8Al−1Mo−1V alloy
AU - SHI, Xiao hui
AU - CAO, Zu han
AU - FAN, Zhi yuan
AU - ECKERT, Jürgen
AU - QIAO, Jun wei
N1 - Publisher Copyright: © 2021 The Nonferrous Metals Society of China
PY - 2021/6/28
Y1 - 2021/6/28
N2 - To get a deep understanding of the evolution behavior of equiaxed α phase in Ti−8Al−1Mo−1V alloy during annealing, its static coarsening mechanism was studied based on the calculations of coarsening exponent n and the activation energy for α boundary migration. The result of n=6 indicates a special coarsening mechanism of equiaxed α phase. The activation energy for α boundary migration is calculated to be 138 kJ/mol, which is close to the activation energy for grain growth of pure α-Ti. It is revealed that the coarsening of equiaxed α can be mainly attributed to the self-diffusion of Ti atoms across the α/α boundaries. Based on the experimental findings, a static coarsening kinetics model of equiaxed α grains in the α+β field is established. At last, the effects of the coarsening behavior of equiaxed α on tensile properties were studied.
AB - To get a deep understanding of the evolution behavior of equiaxed α phase in Ti−8Al−1Mo−1V alloy during annealing, its static coarsening mechanism was studied based on the calculations of coarsening exponent n and the activation energy for α boundary migration. The result of n=6 indicates a special coarsening mechanism of equiaxed α phase. The activation energy for α boundary migration is calculated to be 138 kJ/mol, which is close to the activation energy for grain growth of pure α-Ti. It is revealed that the coarsening of equiaxed α can be mainly attributed to the self-diffusion of Ti atoms across the α/α boundaries. Based on the experimental findings, a static coarsening kinetics model of equiaxed α grains in the α+β field is established. At last, the effects of the coarsening behavior of equiaxed α on tensile properties were studied.
KW - kinetics
KW - model
KW - static coarsening
KW - tensile properties
KW - Ti−8Al−1Mo−1V
UR - http://www.scopus.com/inward/record.url?scp=85108907548&partnerID=8YFLogxK
U2 - 10.1016/S1003-6326(21)65603-0
DO - 10.1016/S1003-6326(21)65603-0
M3 - Article
AN - SCOPUS:85108907548
VL - 31.2021
SP - 1628
EP - 1640
JO - Transactions of Nonferrous Metals Society of China (English Edition)
JF - Transactions of Nonferrous Metals Society of China (English Edition)
SN - 1003-6326
IS - 6
ER -