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Communication Dans Un Congrès Année : 2017

Elaboration of austenitic stainless steel samples with bimodal grain size distributions and investigation of their mechanical behavior

Résumé

Samples of 316L austenitic stainless steel with bimodal grain size distributions are elaborated using two distinct routes. The first one is based on powder metallurgy using spark plasma sintering of two powders with different particle sizes. The second route applies the reverse-annealing method: it consists in inducing martensitic phase transformation by plastic strain and further annealing in order to obtain two austenitic grain populations with different sizes. Microstructural analy ses reveal that both methods are suitable to generate significative grain size contrast and to control this contrast according to the elaboration conditions. Mechanical properties under tension are then characterized for different grain size distributions. Crystal plasticity finite element modelling is further applied in a configuration of bimodal distribution to analyse the role played by coarse grains within a matrix of fine grains, considering not only their volume fraction but also their spatial arrangement
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Dates et versions

hal-01766016 , version 1 (28-11-2022)

Identifiants

Citer

B. Flipon, L. Garcia de la Cruz, E. Hug, Clément Keller, Fabrice Barbe. Elaboration of austenitic stainless steel samples with bimodal grain size distributions and investigation of their mechanical behavior. PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF GLOBAL NETWORK FOR INNOVATIVE TECHNOLOGY AND AWAM INTERNATIONAL CONFERENCE IN CIVIL ENGINEERING (IGNITE-AICCE’17): Sustainable Technology And Practice For Infrastructure and Community Resilience, Apr 2017, Dublin, Ireland. pp.200007, ⟨10.1063/1.5008244⟩. ⟨hal-01766016⟩
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