RT Journal Article
T1 Crystallisation of amorphous Al-Sm-Ni-(Cu) alloys
A1 Gómez Cuevas, Francisco de Paula
A1 Lozano Pérez, Sergio
A1 Aranda Louvier, Rosa María
A1 Sánchez Caballero, Eduardo
AB The primary crystallisation and intermetallics formation of an amorphous Al 88–Sm4 -Ni 8 alloy has been studied. The effect of 1 at% Cu substituting Al or Ni is also considered. The initial microstructure of the melt-spun ribbons is studied by X-ray diffraction. Differential scanning calorimetry shows that the thermal stability of the amorphous alloy is affected by Cu, increasing when Cu substitutes Al and decreasing when substituting Ni. Transmission electron microscopy shows that Cu reduces the size of the initial nanocrystals. After the high-temperature stages of crystallisation, the developed structure is analysed in detail by combining X-rays diffraction, differential scanning calorimetry and transmission electron microscopy. The study includes the effect of Cu on the appearance sequence and characteristics of the intermetallics up to 600 °C. Cu retards the appearance of the stable Al 19 Sm3 Ni5 phase, with an acicular shape being more easily developed.
PB Elsevier
SN 0966-9795
SN 1879-0216 (electrónico)
YR 2019
FD 2019-09
LK https://hdl.handle.net/10272/22753
UL https://hdl.handle.net/10272/22753
LA eng
NO Cuevas, F. G., Lozano-Perez, S., Aranda, R. M., & Caballero, E. S. (2019). Crystallisation of amorphous Al-Sm-Ni-(Cu) alloys. In Intermetallics (Vol. 112, p. 106537). Elsevier BV. https://doi.org/10.1016/j.intermet.2019.106537
NO The Ministerio de Economía y Competitividad (Spain) and Feder (EU) through the research project DPI2015-69550-C2-2-P are gratefully acknowledged for financial support. The authors also wish to thank Prof. Brian Cantor and Dr. Paul J. Warren for helpful discussion and facilitating the initial experiments carried out at Materials Department of Oxford University.
DS Repositorio Institucional de la Universidad de Huelva
RD 13 jun 2026