Dislocation densities of 10E7 & 10E11 cm-2 are typical for annealed and deformed Ni, respectively. For each case, what is the:
a. Average spacing between dislocation lines?
b. The total strain energy, assuming the dislocation character is primarily screw?
In Ni, elastic modulus is 210 GPa, poisson's ratio is 0.3, and the smallest distance between atom centers is 0.25 nm.