The effect of Al2O3 particulates on the precipitation behavious of 6061 Al-matrix composites Das, T en_US Munroe, Paul en_US Bandyopadhyay, Srikanta en_US 2021-11-25T13:10:46Z 2021-11-25T13:10:46Z 1996 en_US
dc.description.abstract The effect of angular and spherical shaped Al2O3 particulates on the precipitation behaviour of 6061 aluminium-matrix composites has been studied using microhardness testing, differential scanning calorimetry (DSC) and transmission electron microscopy (TEM). The evolution of precipitates at each stage of precipitation corresponding to the DSC-peak was monitored through careful TEM observations. Both the formation and dissolution behaviour of the precipitates in the ageing process in the composites were compared with the unreinforced 6061 matrix alloy. Although an overall accelerated ageing response in the composites was reported, not all stages in the ageing process were influenced by the addition of particulates. However, the precipitation sequence was not altered by the presence of the particulates. The degree of acceleration and the relative proportion of the phase/phases was found to depend on reinforcement parameters such as size, shape and volume fraction. In the composites, higher dislocation densities were observed in the immediate vicinity of the ceramic particles which may have formed due to the large difference in the coefficients of thermal expansion (CTE) between the ceramic particles and the matrix. These CTE-dislocation effects influence the kinetics of precipitation. en_US
dc.identifier.issn 0022-2461 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title The effect of Al2O3 particulates on the precipitation behavious of 6061 Al-matrix composites en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Science
unsw.relation.ispartofissue 20 en_US
unsw.relation.ispartofjournal Journal of Materials Science en_US
unsw.relation.ispartofpagefrompageto 5351-5361 en_US
unsw.relation.ispartofvolume 31 en_US
unsw.relation.originalPublicationAffiliation Das, T en_US
unsw.relation.originalPublicationAffiliation Munroe, Paul, Joint Electron Microscope Unit, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Bandyopadhyay, Srikanta, Materials Science & Engineering, Faculty of Science, UNSW en_US School of Materials Science & Engineering *
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