Constellation, le dépôt institutionnel de l'Université du Québec à Chicoutimi

Enhanced elevated-temperature properties via Mo addition in Al-Mn-Mg 3004 alloy

Liu Kun, Ma Hezhaoye et Chen X-Grant. (2017). Enhanced elevated-temperature properties via Mo addition in Al-Mn-Mg 3004 alloy. Journal of alloys and compounds, 694, p. 354-365.

[img] Microsoft Word 2007+ (.docx)

URL officielle:


The present work investigates the influence of adding Mo to an Al-Mn-Mg 3004 alloy on elevated-temperature properties as well as their thermal stability during long-term thermal holding at 350°C and 400°C. In as-cast and heat-treated conditions, both microhardness and yield strength increase with increasing Mo contents and reach peak values at 0.3 wt. % followed by a plateau. With an optimized Mo content (0.3 wt. %), the volume fraction of dispersoids is increased while the volume percentage of the dispersoid-free zone is greatly reduced compared to the base alloy free of Mo, resulting in the remarkable increases in elevated-temperature strength and creep resistance. The results of the long-term thermal holding show that compared with the rapid drop of elevated-temperature strength and creep resistance in the base alloy, the Al-Mn-Mg alloy with 0.3% Mo is thermally stable up to 350°C, exhibiting a slight decrease of stability at 400°C. The combination of high elevated-temperature properties and their excellent thermal stability at 350-400°C with Mo addition makes Al-Mn-Mg 3xxx alloys the promising candidates for elevated-temperature applications.

Type de document:Article publié dans une revue avec comité d'évaluation
Pages:p. 354-365
Version évaluée par les pairs:Oui
Date:15 Février 2017
Sujets:Sciences naturelles et génie > Génie > Génie des matériaux et génie métallurgique
Département, module, service et unité de recherche:Départements et modules > Département des sciences appliquées
Mots-clés:Al-Mn-Mg 3004 alloy, Mo, Elevated-temperature properties, thermal stability, creep resistance
Déposé le:09 nov. 2016 01:49
Dernière modification:09 nov. 2016 01:49
Afficher les statistiques de telechargements

Éditer le document (administrateurs uniquement)

Creative Commons LicenseSauf indication contraire, les documents archivés dans Constellation sont rendus disponibles selon les termes de la licence Creative Commons "Paternité, pas d'utilisation commerciale, pas de modification" 2.5 Canada.

Bibliothèque Paul-Émile-Boulet, UQAC
555, boulevard de l'Université
Chicoutimi (Québec)  CANADA G7H 2B1
418 545-5011, poste 5630