Tensile Properties during Solidification of Aluminium Die Casting Alloys Grade ADC5, ADC6 and ADC12

Abstract:

In-situ tensile properties during the solidification of three commercial aluminium die casting alloys, ADC5, ADC6 and ADC12, were investigated by utilizing a high temperature tensile testing machine. Mid-length portions of the tensile specimens were melted by electromagnetic induction heating. The in-situ data was recorded in the temperature range in which the melt zone was cooling down to the solidified state and immediately after solidification. The technique allows measurement and evaluation of tensile strength and elongation of the alloys at the temperature ranges critical to many manufacturing processes. The relationship between fraction of solid and temperature during the solidification of each alloy was predicted using the Gulliver-Scheil model applied with the thermodynamic database, i.e., Thermo-Calc. Zero Strength Temperature (ZST) and Zero Ductility Temperature (ZDT) of each alloy were determined from the experiments and were correlated to the calculated fractions of solid. The morphology of the specimens’ fractured surfaces was also investigated. The tensile behavior during solidification in this study was used for characterization of hot tearing behavior in each alloy.

• Periodical: Advanced Materials Research (Volumes 1025-1026)
• Pages: 208-214
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1025-1026.208
• Online since: September 2014
• Authors: Suvanchai Pongsugitwat*, Takateru Umeda, Prasonk Sricharoenchai
• Keywords: Die Casting Aluminium Alloys, Hot Cracking, Solidification, Tensile Testing

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