5. A sheet of BCC iron 1 mm thick was exposed to a carburizing gas atmosphere on one side and a decarburizing atmosphere on the other side at 725 °C. After reaching steady state, the iron was quickly cooled to room temperature . The carbon concentrations at the two surfaces of the sheet were determined to be 0.012 and 0.0075 wt %. Compute the diffusion coefficient if the diffusion flux is 1.5 x 10 -3 kg/ m2 s. The density for carbon and iron is 2.25 and 7.87 g/cm 3, respectively
5. A sheet of BCC iron 1 mm thick was exposed to a carburizing gas atmosphere on one side and a decarburizing atmosphere on the other side at 725 °C. After reaching steady state, the iron was quickly cooled to room temperature . The carbon concentrations at the two surfaces of the sheet were determined to be 0.012 and 0.0075 wt %. Compute the diffusion coefficient if the diffusion flux is 1.5 x 10 -3 kg/ m2 s. The density for carbon and iron is 2.25 and 7.87 g/cm 3, respectively
Chapter28: Atomic Spectroscopy
Section: Chapter Questions
Problem 28.4QAP
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