Microstructure Evolution and Phase Transitions of the Annealed Cu–11%Al Alloy with Sn and Gd Additions

Energy-dispersive X-ray spectroscopy
DOI: 10.1007/s13632-019-00586-5 Publication Date: 2019-10-31T02:11:36Z
ABSTRACT
The effects of Sn or Gd additions on the microstructure and phases transitions of the Cu–11%Al alloy (composition in wt.) were studied by Vickers microhardness measurements as a function of quenching temperature, optical microscopy (OM), scanning electronic microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and differential scanning calorimetry (DSC). The results showed that the addition of Sn stabilizes the $$ \beta $$ phases, whereas the addition of Gd modifies the alloy microstructure, but it does not significantly interfere on the phase transitions observed in the Cu–11%Al alloy.
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