Question: In a sample of cold-worked metal dislocation density is 9x1013 [m/m3] after deformation. What is the total length of dislocation line present in a sample

In a sample of cold-worked metal dislocation density is 9x1013 [m/m3] after deformation. What is the total length of dislocation line present in a sample of 1 cm3? If the sample is made of Ni, calculate the total stored elastic energy in [J/m] within the sample for [110] slip direction. (Ni has FCC structure, a =0.35 nm, G=72 GPa)

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