Modeling the precipitation processes and strengthening mechanisms in a Mg-Al-(Zn) AZ91 alloy
hal.structure.identifier | School of Physics and Materials Engineering | |
dc.contributor.author | HUTCHINSON, Christopher R. | |
hal.structure.identifier | School of Physics and Materials Engineering | |
dc.contributor.author | NIE, Jian-Feng | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | GORSSE, Stéphane | |
dc.date.issued | 2005 | |
dc.identifier.issn | 1073-5623 | |
dc.description.abstractEn | A model is developed that couples a description of the continuous precipitation of -Mg17Al12 laths at elevated temperatures to a summation of the different contributions to the room-temperature 0.2 pct proof strength in the commercial alloy AZ91 (Mg-9Al-1Zn (wt pct)). The central assumptions are the diffusion-controlled formation of shear resistant -Mg17Al12 laths on the basal planes of the hcp matrix and basal slip as the dominant room-temperature deformation mode. The calculations show quantitative agreement with the evolution of both the reported precipitation kinetics and the strengthening response as a function of aging time at 200 °C. The magnitudes of the different contributions to the hardening are discussed and strategies for enhancing this response are suggested. | |
dc.language.iso | en | |
dc.publisher | Springer Verlag/ASM International | |
dc.title.en | Modeling the precipitation processes and strengthening mechanisms in a Mg-Al-(Zn) AZ91 alloy | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1007/s11661-005-0330-x | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Metallurgical and Materials Transactions A | |
bordeaux.page | p. 2093-2105 | |
bordeaux.volume | vol. 36, n° 8 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-00096688 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Non spécifiée | |
dc.subject.it | Mechanism | |
dc.subject.it | Modelling | |
dc.subject.it | Precipitation processes | |
dc.subject.it | Mg-Al-(Zn) AZ91 alloy | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-00096688v1 | |
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