Grain growth and static recrystallization kinetics in Co-20Cr-15W-10Ni (L-605) cobalt-base superalloy

Julien Favre, Damien Fabrègue, Eric Maire, Akihiko Chiba

研究成果: ジャーナルへの寄稿学術論文査読

19 被引用数 (Scopus)

抄録

The grain size evolution of cold-rolled L-605 cobalt-base superalloy during ultra-rapid annealing is investigated in this paper. Cold-worked specimens undergo static recrystallization, leading to grain refinement or grain coarsening depending on the annealing time and temperature. The kinetics of grain growth is found to be independent of the initial deformation. The evolution of grain size can be simply described by a grain growth model for high temperatures and long annealing times, and the mobility of interfaces is estimated by modelling. Fast annealing treatment process is a very promising technique to customize grain size and enhance mechanical strength. In particular, the reduction of annealing time is an efficient method to produce a refined microstructure through static recrystallization.

本文言語英語
ページ(範囲)1992-2008
ページ数17
ジャーナルPhilosophical Magazine
94
18
DOI
出版ステータス出版済み - 2014 6月 23

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