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%; Zn, Ni, Al and Cuâ€�?�Au with 4 at%Au). The alloys were subjected to cold rolling (30, 50 and 70%) and annealed isochronally up 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. Au and Al have been found to be more effective in inducing anneal hardening effect.

[学科分类] 材料工程

[关键词] Alloying;secondary annealing;anneal hardening effect;copper alloys.