Evaluation of the effect of Bi, Sb, Sr and cooling condition on eutectic phases in an Al–Si–Cu alloy (ADC12) by in situ thermal analysis

作者: S. Farahany , A. Ourdjini , M.H. Idrsi , S.G. Shabestari

DOI: 10.1016/J.TCA.2013.02.024

关键词:

摘要: Abstract Al–Si and Al–Cu eutectic phases strongly affect the properties of Al–Si–Cu cast alloys. The characteristic parameters these two with addition bismuth, antimony strontium under different cooling rates (0.6–2 °C/s) were investigated in ADC12 alloy using situ thermal analysis. Results show that additives phase more than (Al2Cu) phase. Addition elements showed scenarios response to rate terms recalescence Both Bi Sb caused an increase increased but Sr reduced recalescence. Additions nucleation temperature Al2Cu, produced opposite effect. There seems be relationship between solidification range fraction solid Al2Cu phases. As increases decreased increased.

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