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
Date
2006Résumé
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 lectureLa 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 lectureMany 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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Article dans une revue avec comité de lectureAn 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 lectureINAL, Karim; LEBRUN, Jean-Lou; DIARD, Olivier; MASSON, Renaud; 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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Conférence invitéeA 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 ...