An Investigation on Hall-Petch Relationship in Electrodeposited Nanocrystalline Cu-Ni-P Alloys

Nanocrystalline Cu-Ni-P alloys with average grain sizes of 7, 10 and 24 nm were synthesized by means of electrodeposition.The grain size dependences of tensile strength and hardness of the nanocrystalline Cu alloys were investigated.The breakdown of Hall-Perch relation was exhibited in both tensile strength and hardness.