Shot peening analysis on trip780 steel exhibiting martensitic transformation
Conférence invitée
Auteur
GUIHEUX, RomainBOUSCAUD, DenisPATOOR, EtiennePUYDT, QuentinOSMOND, PierreWEBER, Bastien 
BERVEILLER, Sophie KUBLER, RegisRésumé
The microstructure and mechanical fields were studied on a cold-rolled TRIP 780 steel after conventional shot peening, and with or without pre-strain; for the first time, results were compared to numerical simulations at the phase scale. 1. The pre-strain does not affect residual stresses in the different phases nor the affected depth but it shifts the austenite fraction value towards lower values. 2. All the constituents were found in compression; the maximum value reached in the austenite was -800 MPa while around -500 MPa in the BCC phases. 3. The stress variations are maximum in the zone affected by the martensitic transformation.
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Communication avec acte; ; ; ; ; ;BERVEILLER, Sophie; KUBLER, Regis (ShotPeener ICSP13, 2017)
In the last years, due to increasing ecology and environmental constraints, a search for lightweight structures has been carried out, leading to the use of more complex geometries and new materials. In that context, TRIP ...
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Article dans une revue avec comité de lecture(Elsevier, 2017)During conventional shot peening on metastable austenitic steels, martensitic transformation occurs in additionto plastic straining. In this work, the impact of a single spherical steel shot on a AISI 301LN steel was ...
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Communication avec acte; ; ; ;BERVEILLER, Sophie; KUBLER, Regis (12th International Conference on the Mechanical Behavior of Materials, 2015)
Shot peening process is commonly used in mechanical industries to increase life duration of mechanical and structural parts, as automotive gears for instance. It is based on the development of residual compressive stresses ...
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Article dans une revue avec comité de lecture; ; ; ;BERVEILLER, Sophie; KUBLER, Regis (Elsevier, 2019)
This study aims at the experimental and numerical analysis of TRIP780 steel after conventional shot peening. TRIP steels exhibit a multiphase microstructure with martensitic transformation of the retained austenite during ...
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Article dans une revue avec comité de lecture;BERVEILLER, Sophie; KUBLER, Regis; ; ; (Elsevier, 2017)
During conventional shot peening on metastable austenitic steels, martensitic transformation occurs in addition to plastic straining. In this work, the impact of a single spherical steel shot on a AISI 301LN steel was ...
