Abstract

The mechanical behaviour of Cu-5 vol.% Al2O3, Cu-5 vol.% TiC and Cu-2.5 vol.% TiC-2.5 vol.% Al2O3 alloys (nominal compositions) prepared by reaction milling and extrusion at 1023 K was studied between 673 and 1123 K. The annealing-softening resistance and the compression resistance at elevated temperatures of these alloys increased according to the following trend: Cu-5 vol.% Al2O3; Cu-5 vol.% TiC; Cu-2.5 vol.% TiC-2.5 vol.% Al2O3. An explanation for this behaviour is given. (C) 2004 Elsevier B.V. All rights reserved.