(adsbygoogle = window.adsbygoogle || []).push({}); 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 15 hr duration will raise the carbon concentration to 0.35% at a point 2.0 mm from the surface. Estimate the time necessary to achieve the same concentration at a point 6.0 mm position for an identical steel and at the same carburizing temperature.

2. Relevant equations

3. The attempt at a solution

Because the %Concentration and Temperature are the same, their should be a linear relationship between time and depth but I cannot think of a way to determine the Diffusion Coefficient or an equation for the relationship. Looking for a gentle shove in the right direction.

Thanks so much

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Non-Steady State Diffusion

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**