Grain growth and static recrystallization kinetics in Co-20Cr-15W-10Ni (L-605) cobalt-base superalloy - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Philosophical Magazine Année : 2014

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

Résumé

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.
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Dates et versions

hal-01503883 , version 1 (07-04-2017)

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Julien Favre, D. Fabregue, Éric Maire, Akihiko Chiba. Grain growth and static recrystallization kinetics in Co-20Cr-15W-10Ni (L-605) cobalt-base superalloy. Philosophical Magazine, 2014, 94 (18, A), pp.1992-2008. ⟨10.1080/14786435.2014.903342⟩. ⟨hal-01503883⟩
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