High-temperature mechanical behaviour of Cu–Ti–C, Cu–Al and Cu–Ti–Al–C alloys obtained by reaction milling

Abstract The mechanical behaviour of Cu–5 vol.% Al 2 O 3 , Cu–5 vol.% TiC and Cu–2.5 vol.% TiC–2.5 vol.% Al 2 O 3 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.% Al 2 O 3 ; Cu–5 vol.% TiC; Cu–2.5 vol.% TiC–2.5 vol.% Al 2 O 3 . An explanation for this behaviour is given.