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In situ characterization of AA1050 recrystallization kinetics using high temperature nanoindentation testing

Abstract : Static recrystallization kinetics, at 300 °C, of a hot rolled commercial purity aluminum alloy AA1050 has been investigated using high temperature nanoindentation. Annealing treatments were achieved inside a nanoindentation device to measure corresponding hot nanohardness versus time. Clear evidences of recrystallization phenomenon were deduced from both hardness decrease and pop-in events on load-displacement curves. The recrystallized fraction for increasing annealing time was compared to conventional post mortem characterizations – i.e. EBSD and Vickers hardness. A good agreement was found between in situ and post mortem characterization methods. High temperature nanoindentation is proved to be a powerful tool for fast characterization of materials' recrystallization kinetics.
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https://hal-emse.ccsd.cnrs.fr/emse-02007638
Contributor : Géraldine Fournier-Moulin <>
Submitted on : Wednesday, September 8, 2021 - 3:28:46 PM
Last modification on : Wednesday, September 8, 2021 - 4:08:18 PM

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Paul Baral, Mathilde Laurent-Brocq, Gaylord Guillonneau, Jean-Michel Bergheau, Jean-Luc Loubet, et al.. In situ characterization of AA1050 recrystallization kinetics using high temperature nanoindentation testing. Materials and Design, Elsevier, 2018, 152, pp.22-29. ⟨10.1016/j.matdes.2018.04.053⟩. ⟨emse-02007638⟩

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