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Thermophysical properties of cast aluminium alloys

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Bilotsky, Yevgen
dc.contributor.author Mazzarini, Nicolo
dc.date.accessioned 2014-06-25T09:26:14Z
dc.date.available 2014-06-25T09:26:14Z
dc.date.issued 2014-06-23
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/13557
dc.description.abstract Thermophysical properties of several binary aluminium - silicon alloys castings were studied using Differential scanning calorimetry and Dilatometry. In this research is investigated the behaviour of the material during the first heating after casting. The temperature range examined is 100 – 500 °C with a scan rate of 10 K/min. Therefore, only phase transformations of the solid-state are involved. The results have shown an evident thermal effect around 270 – 300 °C for all the samples in both DSC and DIL analysis. DSC analysis has determined that is involved an exothermal process, and the same process in dilatometry analysis causes a quick increase of the coefficient of thermal expansion. This thermal effect reaches the maximum value for an amount of silicon of 6-9%wt. The reason of this peak is related with the transformation of the oversaturated α-aluminium solid solution present in the alloy (even for hypereutectic compositions). The oversaturation is due to the rapid solidification that occur during the casting process. en
dc.format.extent 92
dc.language.iso en en
dc.title Thermophysical properties of cast aluminium alloys en
dc.type G2 Pro gradu, diplomityö en
dc.contributor.school Kemian tekniikan korkeakoulu fi
dc.subject.keyword aluminium casting alloy en
dc.subject.keyword Al-Si en
dc.subject.keyword differential scanning calorimetry en
dc.subject.keyword dilatometry en
dc.subject.keyword thermal analysis en
dc.identifier.urn URN:NBN:fi:aalto-201408272513
dc.programme.major Materials Engineering fi
dc.programme.mcode KE3004 fi
dc.type.ontasot Master's thesis en
dc.type.ontasot Diplomityö fi
dc.contributor.supervisor Gasik, Michael
dc.programme MTE - Materiaalitekniikan koulutusohjelma fi
dc.location PK fi
local.aalto.openaccess no
dc.rights.accesslevel closedAccess
local.aalto.idinssi 49542
dc.type.publication masterThesis
dc.type.okm G2 Pro gradu, diplomityö

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