Electrical and magnetic studies on gain boundary segregation in a Ni-3 at.%Sn alloy

The variations of the grain boundary precipitation, the electrical resistivity, and the magnetization of an Ni-3 at.%Sn alloy have been investigated as a function of annealing time and annealing temperature. The average growth rate of the grain boundary precipitates for samples annealed at 773 K is roughly 7 μ per week. The residual electrical resistivity for samples annealed at 773 K decreases roughly by 0.6 μΩ-cm per week. All the electrical and magnetic properties in the annealed samples vary monotonically with respect to the degree of grain boundary precipitation and segregation