RT Journal Article
T1 High temperature behavior of nanostructured Al powders obtained by mechanical alloying under NH3 flow
A1 Caballero, Eduardo S.
A1 Cintas Físico, Jesús
A1 Gómez Cuevas, Francisco de Paula
A1 Montes Martos, Juan Manuel
A1 Herrera García, M.
AB Aluminium powder was mechanically alloyed under ammonia gas flow for differenttimes (1-5 h) in order to produce a second-phase reinforcement, mainly by aluminium nitride(AlN). After milling, powders were consolidated by cold uniaxial pressing and vacuumsintering. A small amount of copper powder was added to the Al milled powder to improve itssintering behavior. Hardness and indirect tensile test were carried out at room and hightemperature to evaluate the mechanical properties evolution. Results showed an remarkablehardness increase with the second phases content, even at high temperature (up to 229 HB at 400ºC). However, the high content of second phases of ceramic nature decreases the ductility,resulting in low values of tensile strength (lower than 160 MPa).
PB American Institute of Physics
SN 0094-243X
SN 1551-7616 (electrónica)
YR 2015
FD 2015
LK http://hdl.handle.net/10272/11347
UL http://hdl.handle.net/10272/11347
LA eng
NO Caballero, E.S., Cintas, J., Gómez Cuevas, F.P., Montes, J.M., Herrera García, M.: "High temperature behavior of nanostructured Al powders obtained by mechanical alloying under NH3 flow". AIP Conference Proceedings. Vol. 1653,  020025 (2015). DOI 10.1063/1.4914216
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026