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A thin sheet of iron at 8 0 0 C is exposed to different gas atmospheres on both of its surfaces in such a way
A thin sheet of iron at is exposed to different gas atmospheres on both of its surfaces in
such a way that the composition on one of its faces is atomic carbon and the other is
carbon. Under steadystate conditions, plot the composition profile of the sample, clearly
indicating respective compositions and distances.
The thickness of the sample is and the changes in densities during the experiment can
be considered negligible. At it is known that the diffusion coefficient of carbon in iron is
given by:
in ferrite Fea
in austenite Feg
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