Hot-tearing in Aluminium Copper Alloys

作者: Y.F. Guven , J. D. Hunt

DOI: 10.1080/09534962.1988.11818955

关键词: Casting (metalworking)MetallurgyTearingEutectic systemMaterials scienceThermocoupleThin filmAluminiumLiquid volume fractionCopper

摘要: An experimental technique has been developed to investigate hot tearing. In this either the load or strain built up during casting could be measured as a function of mould wall temperature. Experiments were carried out in Al—Cu alloys. Although there was considerable scatter results, it concluded that strength began build when liquid volume fraction reached about 4% eutectic temperature reached. It also initial crack tear occurred thin film solid just below is suggested occurs alloy composition less than most susceptible tearing and for higher compositions. The reaches 2%. A numerical analysis made heat flow so corrections thermocouple readings was...

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