The diffusion coefficients for iron in nickel are given at two temperatures: T(K) D(m2/s) 1273 9.4 x 10-16 1473 2.4 x 10-14 (a) Determine the values of D0 and the activation energy Qd. (b) What is the magnitude of D at 1100ºC (1373 K)?

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Q: Calculate the diffusion constant,

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A: Data Provided

Q: 3. A BCC iron alloy containing 0.05 wt% C is carburized at 1050°C such that the carbon concentration…

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Q: Problem 1 A sheet of BCC iron 1 mm thick was exposed to a carburizing gas atmosphere on one side and…

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Atomic diffusion in solids

In material science, diffusion can take place in solid, liquid, and gases. In solids, atomic diffusion can take place with the help of thermally activated and randomly vibrating atoms. The atomic diffusion in solids is complex and very slow in comparison to atomic diffusion in liquids and gases because the interatomic distance between the atoms is smaller in solids as compared to liquids and gases.