Abstract
The effects of the addition of Sn or Gd on the phase transitions of the Cu–11%Al–10%Mn alloy were studied to identify and characterize the phases formed at each transition observed in the differential scanning calorimetry curves. The characterization was carried out by X-ray diffraction, microhardness tests, and magnetization measurements as a function of the applied field. The microstructure was investigated by optical microscopy and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy. The results showed that the addition of Sn stabilizes the \(\beta \) phases, and changes the phases present in the Cu–11%Al–10%Mn alloy, whereas the addition of Gd does not interfere with the phase transitions. In addition, Sn improves the alloy saturation magnetization, while addition of Gd deteriorates it.
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Acknowledgments
The authors thank the Multiuser Central facilities (UFABC) for the experimental support. This study was financed by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001, FAPESP (2019/06717-0), and CNPq.
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Souza, J.S., Silva, R.A.G. Microstructure Changes in Sn- or Gd-Modified Cu–11%Al–10%Mn Alloy. Metallogr. Microstruct. Anal. 10, 116–126 (2021). https://doi.org/10.1007/s13632-021-00710-4
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DOI: https://doi.org/10.1007/s13632-021-00710-4