Superplastic Bonding of Electrodeposited Nanocrystalline Ni Alloys

Superplastic bonding was performed using electrodeposited Ni and Ni-B to apply low-temperature diffusion of carbon steel. Electrodeposited were bonded at 450℃ in air a strain rate 1 × 10−4 s−1. The shear test measured the bond strength, maximum strength 69 MPa obtained. Since obtained is comparable that by steel 0.5Tm, it possible decrease temperature 0.4Tm applying this boning process. depended on amount increased as range 0.2 0.4. voids interface shrink superplastic deformation with grain boundary sliding, area increases. In alloys, effectively shrinks radius 1-2 µm.