Material Science question Rank the following elements with regard to how rapidly they will diffuse into FCC...

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Mechanical Engineering

Material Science question

Rank the following elements with regard to how rapidly they willdiffuse into FCC Iron (fastest to slowest). Indicate the diffusionmechanism for each.

1) Mo

2) C

3) Cr

4) W

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4.3 Ratings (847 Votes)
The steady state diffudion is governed by Ficks first lawWhereJ diffusion flux mass diffusedarea x timekgm2sDdiffusivity m2sC concentration kgm3We assume the same concentration gradient for all the allowingelementsHence the diffusion flux depends of diffusivity DThe diffusivity    See Answer
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