The microplastic behaviour of polycrystalline nickel

Abstract
The pre-yield microstrain behaviour of nickel having grain sizes ranging from 0·018 to 0·44 mm has been studied at 298°K. Calculations, based on observations that microstrain proceeds by three stages in the highest purity samples, suggest that the formation of an “incipient glide polygonization cell” in the microstrain region determines the cell size observed after macrodeformation.