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Effect of 4 mass% Ag addition on the thermal behavior of the Cu-9 mass% Al alloy

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Abstract

The effect of 4 mass% Ag addition on the thermal behavior of the Cu-9 mass% Al alloy was studied using differential scanning calorimetry (DSC), optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray diffractometry (XRD). The results showed that the presence of silver causes (Cu)-α+(α+g1)→ (Cu)-α+β transformation to occur in two stages. In the first one, part of the produced b phase combines with the precipitated Ag to give a silver-rich phase and in the second one the transformation is completed. The formation of this silver-rich phase seems to be enhanced at very low cooling rates.

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Authors and Affiliations

  1. Departamento de Físico-Química, Instituto de Química-Unesp, Caixa Postal 355-14801-970, Araraquara-SP, Brazil

    A. T. Adorno & R. A. G. Silva

Authors
  1. A. T. Adorno
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  2. R. A. G. Silva
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Adorno, A.T., Silva, R.A.G. Effect of 4 mass% Ag addition on the thermal behavior of the Cu-9 mass% Al alloy. Journal of Thermal Analysis and Calorimetry 73, 931–938 (2003). https://doi.org/10.1023/A:1025863404768

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  • DOI: https://doi.org/10.1023/A:1025863404768

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