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Évaluation microstructurale des aciers APIX80 dans différents cycles thermiques

Évaluation microstructurale des aciers APIX80 dans différents cycles thermiques

Adriana de Almeida Halfeld Vieira / Ivani de Souza Bott

59,31 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Música
ISBN:
9786208587000
59,31 €
IVA incluido
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Dans ce travail, une évaluation microstructurale de l’influence du cycle thermique a été réalisée sur trois aciers de qualité API5L X80 : Nb-Cr, Nb-Cr-Mo et Nb-Cr-Mo-V fabriqués au Brésil. Ces aciers ont été fabriqués à l’aide d’un processus thermomécanique contrôlé sans subir de phase de refroidissement accéléré. Les caractérisations microstructurales ont été effectuées dans deux conditions : post-laminage et austénitisation à 900oC suivie de trois (3) cycles thermiques : refroidissement dans l’air (1,5oC/s), dans l’huile (30oC/s) et dans l’eau (115oC/s). Des données telles que le TG, la distribution des phases : ferrite, bainite et AM, la dureté et la micro-dureté ont été analysées, ainsi que la vérification des différences dans leurs sous-structures : sous-grains, cellules et précipitations fines.

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