Abstract
The dynamic response of pure nickel (Ni), and its alloy, Ni‐60Co (by weight %), has been investigated during one‐dimensional shock loading. Few materials’ properties are different and the only significantly altered feature is the reduced stacking fault energy (SFE) for the Ni‐60Co. This paper considers the effect of this reduced SFE on the shear strength. Data (in terms of shock stress, particle velocity and shock velocity) are also presented. The influence on the shear stress, τ of cobalt additions in nickel are then investigated and presented. Results indicate that the lateral stress is increasing in both materials with the increasing impact stress. The shear stress was found to be higher in the nickel than in the Ni‐60Co. The progressive decrease of the lateral stress noted during loading indicates a complex mechanism of deformation behind the shock front.
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