A sheet of steel 2.5-mm thick has nitrogen atmospheres on both sides at 900C and is permitted
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A sheet of steel 2.5-mm thick has nitrogen atmospheres on both sides at 900°C and is permitted to achieve a steady-state diffusion condition. The diffusion coefficient for nitrogen in steel at this temperature is 1.85 × 10-10 m2/s, and the diffusion flux is found to be 1.0 × 10-7 kg/m2.s. Also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 2 kg/m3. How far into the sheet from this high-pressure side will the concentration be 0.5 kg/m3? Assume a linear concentration profile.
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Related Book For
Materials Science and Engineering An Introduction
ISBN: 978-1118324578
9th edition
Authors: William D. Callister Jr., David G. Rethwisch
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