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Thermal behavior of α-(Cu–Al–Ag) alloys

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Abstract

Thermal behavior of α-(Cu–Al–Ag) alloys, i.e. alloys with composition less than about 8.5 mass% Al, was studied using differential scanning calorimetry (DSC), differential thermal analysis (DTA), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray diffractometry (XRD). The results indicated that the presence of silver introduces new thermal events ascribed to the formation of a silver-rich phase and, after addition higher amounts than 8 mass% Ag to the Cu–8 mass% Al alloy it is possible to observe the formation of the γ1 phase (Al4Cu9), which is only observed in alloys containing minimum of 9 mass% Al. These results may be attributed to some Ag characteristics and its interaction with Cu and Al.

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Adorno, A.T., Silva, R.A.G. & Magdalena, A.G. Thermal behavior of α-(Cu–Al–Ag) alloys. J Therm Anal Calorim 87, 759–762 (2007). https://doi.org/10.1007/s10973-006-7790-0

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  • DOI: https://doi.org/10.1007/s10973-006-7790-0

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