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1. The problem statement, all variables and given/known data

For a steel alloy below, it has been determined that a carburizing heat treatment of 10 hr duration will raise the carbon concentration to 0.45%. Estimate the time necessary to achieve the same concentration at a point 5.0 mm position for an identical steel and at the same carburizing temperature.

2. Relevant equations

3. The attempt at a solution

Have not picked on what to do but I am currently still manipulating the formula of non-steady state diffusion. So if I can get push in the right direction, that would be appreciated.

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# Homework Help: Non-Steady State Diffusion

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