Overview NO. 90 : a process model for age hardening of aluminium alloys. II, Applications of the model

Published on Jan 1, 1990in Acta Metallurgica
H. R. Shercliff1
Estimated H-index: 1
M. F. Ashby1
Estimated H-index: 1
Le modele pour le calcul du vieillissement des alliages d'aluminium, que l'on a developpe dans la partie I, est applique a plusieurs traitements thermiques, ce qui permet d'aborder des problemes tels que la prevision de la perte de resistance mecanique dans la zone chauffee au voisinage des soudures. On considere en premier le rechauffage d'un materiau prealablement vieilli. On modelisa ensuite le traitement thermique a cycle thermique parabolique a l'aide d'un traitement isotherme equivalent, et l'on considere son extension aux cycles thermiques des soudures. On presente enfin les modeles isothermes sous forme de nouveaux «diagrammpes d'egale limite elastique» qui servent a evaluer les resultats tires des cycles thermiques, ainsi qu'a prevoir les mecanismes
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