Effect of microstructure on the mechanical properties of ultrafine-grained Cu-Al-Ni alloys processed by deformation and annealing
In this research, ultrafine-grained Cu-7at%Al-3at%Ni alloys with a twin structure and precipitates were prepared by cold rolling+aging+cold rolling+aging (CR+ACA) and multi-directional forging+aging+cold rolling+aging (MDF+ACA). In contrast with the un-deformation sample, significant increases in strength were obtained by MDF+ACA and CR+ACA, reaching 803.7 MPa and 722.8 MPa respectively, while maintaining a good elongation of 9.5 % and 8.4 […]