, 3C : austénitisé à 1050°C pendant 60 minutes, refroidi à l'air, déformé par laminage à 600°C de 75% (en 3 ou 4 passes), trempé à une vitesse de 10°C.s ?1 , revenu à 475°C pendant 1 à 50h. 4.1.1 Relation linéaire entre la limite d'élasticité/la résistance mécanique à 550°C, p.156
, 166 4.2.1 Influence d'un "simple" traitement thermique : austénitisation 167 4.2.2 Influence de l'étape de laminage en phase austénitique métastable, 178 4.2.6 Sensibilité de la ductilité en fonction de la vitesse minimale de fluage . . . . . . 182 4.2.7 Évolution de la microstructure après sollicitation de fluage . . . . . . . . . . . . 183 4.2.8 Bilan sur les propriétés de fluage à 650°C (temps courts), p.186
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, Méthodes expérimentales de caractérisation des propriétés mécaniques Les différentes méthodes expérimentales de caractérisation des propriétés mécaniques, employées au cours de cette thèse
, Méthodes expérimentales de caractérisation des propriétés mécaniques Figure C.14 ? Schéma du type d'éprouvette utilisée pour les essais de fatigue et de fatigue-fluage
, Un autre type d'éprouvette est évoqué dans ce manuscrit. Il s'agit des éprouvettes de résilience de type
, 258 D.2 Objectifs, 258 D.3 Présentation du matériau dans les conditions d'austénitisation et de revenu "standard, p.258
, 260 D.5.1 Taille des ex-grains d'austénite et taux de transformation, p.262