The grain size dependence of flow stress in a Cu–1%Cd alloy

The dependence of flow stress on grain size was studied in a Cu–1%Cd alloy. The Hall–Petch constants are related to true strain in such a way that σ0(ɛ) is proportional to ɛ and k(ɛ) having negative variation with ɛ1/2. A new equation for flow stress as a function of true strain (ɛ) and grain size (d) has been evolved for this alloy.