A crystallographic approach of brittle fracture in the 16MND5 bainitic steel. In-situ X-ray diffraction and scanning electron microscope measurements at low temperatures
Conférence invitée
Auteur
INAL, KarimMASSON, Renaud 
PESCI, RaphaëlRésumé
A series of in-situ tensile tests was performed at various low temperatures to characterize the mechanical properties and the fracture processes of the 16MND5 steel: the damage was observed with a SEM and the internal stresses in the ferritic phase were determined by XRD.
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Article dans une revue avec comité de lecture; ;PESCI, Raphaël (Elsevier, 2009)
An original approach is proposed to predict the behavior of the16MND5bainitic steel (similar to U.S. A508 cl.3) in the lower range of the ductile-to-brittle transition region and at lower temperatures [−196 ◦C; 20 ◦C], by ...
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Article dans une revue avec comité de lecture; ; ; ;PESCI, Raphaël (Wiley-Blackwell, 2006)
Stress analyses by X-ray diffraction are performed on a cast duplex (32% ferrite) stainless steel elbow and a bainitic (95% ferrite) pressure vessel steel. During an in situ tensile test, micrographic observations are made ...
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Article dans une revue avec comité de lecture; ; ;PESCI, Raphaël (Elsevier, 2003)
La nature biphasée de l’acier bainitique 16MND5 (ferrite/cémentite) fait de la Diffraction des Rayons X (DRX) l’outil privilégié pour déterminer les états de contrainte dans la phase ferritique (méthode des sin2 ψ). Couplés ...
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Article dans une revue avec comité de lecture; ;PESCI, Raphaël (Elsevier, 2004)
Many tensile tests have been realized on the 16MnNiMo5 bainitic pressure vessel steel at low temperatures [-196°C, -60°C]. The damaging processes (ductile/fragile) are observed with a scanning electron microscope (SEM), ...
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Conférence invitée; ; ; ;PESCI, Raphaël (2005)
A specific in-situ tensile device has been set up in an X-Ray diffractometer. Stress can be measured at low temperature during loading in the baintic steel and in the ferritic phase. A two-scale modeling has been proposed ...