|Using the Hume-Rothery rules for the formation of substitutional solid solutions, indicate which the following systems would be expected to exhibit highest degree of solubility. ( (A) Mo-Co (В Fe-Zn

(C Cu-Ni (D)Co-Ni (ii) (5 points) Calculate how many octahedral (Oh) interstitial sites in BCC and FCC unit cell? Draw the unit cell and rationalize it. (iii) (10 points) The diffusion coefficients for iron in nickel are given at two temperatures:

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