RT Journal Article
T1 Amorphous Al-Ti Powders Prepared by Mechanical Alloying and Consolidated by Electrical Resistance Sintering
A1 Urban, Petr
A1 Ternero Fernández, Fátima
A1 Caballero, Eduardo S.
A1 Nandyala, Sooraj
A1 Montes Martos, Juan Manuel
A1 Gómez Cuevas, Francisco de Paula
AB A novel processing method for amorphous Al50Ti50 alloy, obtained by mechanicalalloying and subsequently consolidated by electrical resistance sintering, has been investigated.The characterisation of the powders and the confirmation of the presence of amorphous phase havebeen carried out by laser di raction, scanning electron microscopy, X-ray di raction, di erentialscanning calorimetry and transmission electron microscopy. The amorphous Al50Ti50 powders, milledfor 75 h, have a high hardness and small plastic deformation capacity, not being possible to achievegreen compacts for conventional sintering. Moreover, conventional sintering takes a long time, beingnot possible to avoid crystallisation. Amorphous powders have been consolidated by electricalresistance sintering. Electrically sintered compacts with di erent current intensities (7–8 kA) andprocessing times (0.8–1.6 s) show a porosity between 16.5 and 20%. The highest Vickers hardness of662 HV is reached in the centre of an electrically sintered compact with 8 kA and 1.2 s fromamorphousAl50Ti50 powder. The hardness results are compared with the values found in the literature.
PB MDPI
SN 2075-4701
YR 2019
FD 2019-10
LK http://hdl.handle.net/10272/17592
UL http://hdl.handle.net/10272/17592
LA eng
NO Urban, P., Ternero, F., Caballero, E. S., Nandyala, S., Montes Martos, J. M., Gómez Cuevas, F. (2019). Amorphous Al-Ti Powders Prepared by Mechanical Alloying and Consolidated by Electrical Resistance Sintering. Metals, 9(11), 1140. DOI:  https://doi.org/10.3390/met9111140
NO This research was funded by Ministerio de Economía y Competitividad (Spain) and Feder (EU) throughthe research projects DPI2015-69550-C2-1-P and DPI2015-69550-C2-2-P.
DS Repositorio Institucional de la Universidad de Huelva
RD 19 jun 2026