Influence of Grain Size on Strain Hardening of Orderable Ni3Fe Alloy

An experimental study was made of the strain hardening of the Ni3Fe alloy in disordered and ordered states as a function of the grain size. An analysis of the stress-strain diagrams was made using the Hall-Petch equation allowing for the contributions of the density of statistically stored dislocations ρs and the density of geometrically expected dislocations ρg to the total dislocation density ρ.