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R-HPDC of magnesium alloys

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dc.contributor.author Curle, UA
dc.contributor.author Wilkins, JD
dc.contributor.author Govender, G
dc.date.accessioned 2013-10-23T12:20:02Z
dc.date.available 2013-10-23T12:20:02Z
dc.date.issued 2013
dc.identifier.citation Curle, U.A, Wilkins, J.D and Govender, G. 2013. R-HPDC of magnesium alloys. In: 12th International Conference on Semi-Solid Processing of Alloys and Composites, Cape Town, South Africa, 8-11 October 2012 en_US
dc.identifier.uri http://www.scientific.net/SSP.192-193.225
dc.identifier.uri http://hdl.handle.net/10204/7011
dc.description 12th International Conference on Semi-Solid Processing of Alloys and Composites, Cape Town, South Africa, 8-11 October 2012. Abstract only attached. en_US
dc.description.abstract Flexibility of the Council for Scientific and Industrial Research’s Rheocasting System (CSIR-RCS) and its rheo-high pressure die casting (R-HPDC) technology is again demonstrated, as with aluminium alloys, by processing and shape casting of three different magnesium alloys (AM50A, AM60B, AZ91D) in a first attempt. All as-cast microstructures are characterised more by rosette shaped globules of the primary-(Mg) phase together with Mg(sub17)Al(sub12) as evidence of nonequilibrium cooling rates. Surface liquid segregation is observed in the as-cast microstructure for all three alloys. Minor alloy additions of Mn, in composition specifications, results in the formation of Al8Mn5 intermetallic phase particles dispersed throughout the microstructure. All alloys were homogenised at 415 °C for 16 hours for the T4 condition. The Mg(sub17)Al(sub12) phase dissolves with homogenisation while the Al(sub8)Mn(sub5) intermetallic phase does not dissolve. The resulting tensile properties of all three alloys in the as-cast and T4 conditions are reported. en_US
dc.language.iso en en_US
dc.publisher Trans Tech Publications en_US
dc.relation.ispartofseries Workflow;11529
dc.subject Aluminium alloys en_US
dc.subject Magnesium alloys en_US
dc.subject Compposites en_US
dc.subject Tensile properties en_US
dc.title R-HPDC of magnesium alloys en_US
dc.type Conference Presentation en_US


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