Strain-ageing in silver chloride. I. The representative curve

Abstract

A study has been made of strain-ageing at room temperature in zone-refined silver chloride. It is found that if the yield stress after ageing is measured on a single specimen for a sequence of ever-increasing ageing times, the graph of change of flow stress against In(ageing time) is a reproducible curve that reflects the various mechanisms that operate during ageing, and has been called the representative curve. The representative curve for silver chloride at room temperature has four distinct regions which are interpreted in terms of the dislocation-point-defect interactions taking place in the material.