Besaran Energi Aktivasi dan Temperatur Solidus dari Aluminium Alloy 7075
DOI:
https://doi.org/10.36706/jrm.v25i1.1352Keywords:
Aluminium Alloy, TGA, Activation Energy, Solidus TemperatureAbstract
Aluminum Alloy 7075 is a type of aluminum with a dominant zinc alloy. This type of aluminum is widely used for aircraft bodies and frames. Activation Energy and Solidus Temperatr can be calculated using Thermogravimetry Analyzer. By using the Arrhenius equation, the amount of Activation energy can be calculated, while using the relationship between TG and DTA on the Thermogram diagram, the melting temperatr of AA 7075 material or solidus temperatr can be determined. The solidus temperatr has been measured at 633.8 oC and the activation energy is calculated at 2,842 kJ/mol.
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