Evolution of residual stresses during short time nitriding of 33CrMoV12-9 steel grade
Article dans une revue avec comité de lecture
Auteur
FALLOT, Guillaume 
BARRALLIER, Laurent JÉGOU, SébastienRésumé
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.
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Article dans une revue avec comité de lecture;BARRALLIER, Laurent; JÉGOU, Sébastien (Elsevier, 2018)
The gaseous nitriding behaviour of 33CrMoV12-9 steel was investigated. The co-diffusion of nitrogen and carbon, precipitation at grain boundaries and mechanical properties evolutions (microhardness, residual stresses) are ...
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Communication avec acte;BARRALLIER, Laurent; JÉGOU, Sébastien (ASM International, 2016)
Gaseous nitriding is controlled by temperature, time and surface nitrogen potential. Tuning these parameters lead to the expected mechanical properties (hardness, residual stresses) and durability of treated mechanical ...
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Article dans une revue avec comité de lecture;BARRALLIER, Laurent; JÉGOU, Sébastien (Pyc Edition, 2016)
La nitruration gazeuse est un traitement thermochimique contrôlée par la température, le temps et le potentiel azote superficiel qui influencent de façon notable les propriétés méca- niques (dureté, contraintes résiduelles) ...
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Article dans une revue avec comité de lecture; ; ;BARRALLIER, Laurent; JÉGOU, Sébastien (Materials Research Forum LLC, 2016)
The objective of this work is to propose a model abled to optimize the mechanical properties from gaseous nitriding of steels (hardness, residual stresses) for a given loading and fatigue lifetime. Multiaxial fatigue ...
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Optimization of gaseous nitriding of carbon iron-based alloy based on fatigue resistance modelling Article dans une revue avec comité de lecture; ; ;BARRALLIER, Laurent; JÉGOU, Sébastien (Elsevier, 2018)
Gaseous nitriding of steels is a well-established thermochemical surface treat- ments that increases the fatigue resistance of treated parts. The present work proposes a modelling of the fatigue life as a function of the ...