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Thermo-mechanical factors influencing annealing twin development in nickel during recrystallization

Yuan Jin 1 Brian Lin 2 Anthony D. Rollett 2 Gregory S. Rohrer 2 Marc Bernacki 1 Nathalie Bozzolo 1
1 CEMEF - Centre de Mise en Forme des Matériaux
2 Department of Material Science and Engineering
Abstract : The effects of prior stored energy level, annealing temperature, heating velocity, and initial grain size on annealing twin development during static recrystallization of commercially pure nickel (99.999 %) are investigated. The twin content (measured as the twin boundary density or as the number of twins per grain) at the end of recrystallization is shown to be primarily influenced by the prior stored energy level and by the initial grain size, but the effects of heating rate and the annealing temperature are negligible. Taken together, the results are consistent with a new proposition that roughness of the recrystallization front promotes the formation of annealing twins during recrystallization.
Keywords : Thermo-mechanical Static recrystallization Stored energy Annealing Grain size and shape Nickel Annealing temperatures Annealing twins Initial grain size Pure nickels Twin boundaries
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Submitted on : Tuesday, June 2, 2015 - 3:28:40 PM
Last modification on : Wednesday, March 17, 2021 - 5:20:03 PM

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Yuan Jin, Brian Lin, Anthony D. Rollett, Gregory S. Rohrer, Marc Bernacki, et al.. Thermo-mechanical factors influencing annealing twin development in nickel during recrystallization. Journal of Materials Science, Springer Verlag, 2015, 50 (15), pp.5191-5203. ⟨10.1007/s10853-015-9067-0⟩. ⟨hal-01159091⟩

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