Bulk high strength Al85La10Ni5 alloy prepared by hot pressing

Using hot pressing powder metallurgy technique, high strength bulk Al85La10Ni5 alloy in a size of ∅ 25 mm×10 mm with porosity of less than 3% has been obtained when the hot pressing temperatures are 753–773 K, pressing time is 30 min and pressure is 1.2 GPa. The highest compression strength of 950 MPa of the alloy after the hot pressing at 773 K have been obtained. The strength increasing of the alloy is interpreted by second-phase strengthening and fine-grain strengthening.