Kinetics equations and microstructural evolution during metadynamic recrystallization in a nickel-based superalloy with δ phase
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- 作者：Dao-Guang Hea ; b ; Y.C. Lina ; b ; c ; yclin@csu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; linyongcheng@163.com" class="auth_mail" title="E-mail the corresponding author ; Ming-Song Chena ; c ; Ling Lia ; b
- 关键词：Hot compression ; Superalloy ; Metadynamic recrystallization ; Dynamic softening
- 刊名：Journal of Alloys and Compounds
- 出版年：2017
- 出版时间：5 January 2017
- 年：2017
- 卷：690
- 期：Complete
- 页码：971-978
- 全文大小：3876 K
文摘
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Metadynamic recrystallization (MDRX) behaviors of a Ni-based superalloy with δ phase are studied.
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Softening fraction significantly increases with increasing pre-strain, strain rate and temperature.
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The developed kinetic equations can accurately evaluate the softening fractions caused by MDRX.
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MDRX grain size sharply increases when the pre-strain and deformation temperature are increased.
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MDRX grain size obviously decreases with increasing the strain rate.