Influence of alloying and secondary annealing on anneal hardening effect at sintered copper alloys

摘要

This paper reports results of investigation carried out on sintered copper alloys (Cu, 8 at percent; Zn,. Ni, AI and Cu-Au with 4 at percent Au). The alloys were subjected to cold rolling (30, 50 and 70 percent) and annealed isochronally op to recrystallization temperature. Changes in hardness and electrical conductivity were followed in order to investigate the anneal hardening effect. This effect was observed after secondary annealing also. Ai and Al have been found to be more effective in inducing anneal hardening effect.