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Modeling the precipitation processes and strengthening mechanisms in a Mg-Al-(Zn) AZ91 alloy

hal.structure.identifierSchool of Physics and Materials Engineering
dc.contributor.authorHUTCHINSON, Christopher R.
hal.structure.identifierSchool of Physics and Materials Engineering
dc.contributor.authorNIE, Jian-Feng
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGORSSE, Stéphane
dc.date.issued2005
dc.identifier.issn1073-5623
dc.description.abstractEnA 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.isoen
dc.publisherSpringer Verlag/ASM International
dc.title.enModeling the precipitation processes and strengthening mechanisms in a Mg-Al-(Zn) AZ91 alloy
dc.typeArticle de revue
dc.identifier.doi10.1007/s11661-005-0330-x
dc.subject.halChimie/Matériaux
bordeaux.journalMetallurgical and Materials Transactions A
bordeaux.pagep. 2093-2105
bordeaux.volumevol. 36, n° 8
bordeaux.peerReviewedoui
hal.identifierhal-00096688
hal.version1
hal.popularnon
hal.audienceNon spécifiée
dc.subject.itMechanism
dc.subject.itModelling
dc.subject.itPrecipitation processes
dc.subject.itMg-Al-(Zn) AZ91 alloy
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00096688v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Metallurgical%20and%20Materials%20Transactions%20A&rft.date=2005&rft.volume=vol.%2036,%20n%C2%B0%208&rft.spage=p.%202093-2105&rft.epage=p.%202093-2105&rft.eissn=1073-5623&rft.issn=1073-5623&rft.au=HUTCHINSON,%20Christopher%20R.&NIE,%20Jian-Feng&GORSSE,%20St%C3%A9phane&rft.genre=article


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