Superplastic behavior of Ti-43Al-7(Nb,Mo)-0.2B alloy in the cast plus heat-treated condition
Superplastic behavior of Ti-43Al-7(Nb,Mo)-0.2B alloy in the cast plus heat-treated condition
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DOI：
10.1016/j.scriptamat.2007.04.012
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发表时间：
2007-08-01
影响因子：
6
通讯作者：
Fecht, H-J
中科院分区：
文献类型：
--
作者：
Imayev, V.;Imayev, R.;Fecht, H-J
提出了一种在γ+α(2)钛铝合金中制造球状细晶结构的新方法。该方法包括使用专门设计的合金和排除任何初级热加工的球化退火。正如 Ti-43Al-7(Nb,Mo)-0.2B 合金（以 at.% 计）所证明的那样，这导致在 T = 1050-1130 摄氏度的温度范围和 epsilon' = 1.7 x 10(-4) s(-1) (c) 的应变率下出现超塑性行为。2007 Acta Materialia Inc. 由 Elsevier Ltd 出版。保留所有权利。
A novel approach to the fabrication of a globularized fine-grained structure in gamma + alpha(2), titanium aluminide alloys has been proposed. The approach includes the use of specially designed alloys and a globularization anneal that excludes any primary hot working. As was demonstrated for the Ti-43Al-7(Nb,Mo)-0.2B alloy (in at. %), this resulted in superplastic behavior in the temperature range of T = 1050-1130 degrees C and a strain rate of epsilon' = 1.7 x 10(-4) s(-1) (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.