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 (sigma)0(epsilon) is proportional to (epsilon) and k(epsilon) having negative variation with (epsilon) 1/2. A new equation for flow stress as a function of true strain (epsilon) and grain size (d) has been evolved for this alloy.