Author/Authors :
Palma، نويسنده , , Rodrigo H. and Sepْlveda، نويسنده , , Aquiles O. and Espinoza، نويسنده , , Rodrigo G. and Zٌْiga، نويسنده , , Alejandro P. and Diلnez، نويسنده , , M. Jesْs and Criado، نويسنده , , José M. and Sayagués، نويسنده , , M. Jesْs، نويسنده ,
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.
Keywords :
Copper alloys , Creep , mechanical alloying , Dispersion-strengthening
