Evolution of residual stresses during short time nitriding of 33CrMoV12-9 steel grade

Guillaume Fallot (1) , Sébastien Jégou (2, 1) , Laurent Barrallier (1)

1 MSMP - Mechanics surfaces and materials processing
2 MECASURF - MECASURF

The evolution of residual stresses during short time gas nitriding of 33CrMoV12-9 steel grade is studied. It aims understanding the influence of nitriding parameters (temperature T and nitriding potential Kn) on the generation and evolution of residual stresses in the very first stage of nitriding. The samples are gas nitrided using a thermobalance during 2h30 and 5 hours for various temperatures and nitriding potentials. Residual stress analyses are carried out by laboratory X-ray diffraction.

Mots clés: Nitriding; Residual stresses; Phase transformations; Iron alloys; Precipitation

Domaines: Science des matériaux [cond-mat.mtrl-sci]; Génie des procédés; Matériaux; Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

Guillaume Fallot, Sébastien Jégou, Laurent Barrallier. Evolution of residual stresses during short time nitriding of 33CrMoV12-9 steel grade. Advanced Materials Research, 2014, 996, pp.544-549. ⟨10.4028/www.scientific.net/AMR.996.544⟩. ⟨hal-01064006⟩