Chemistry, 26.07.2019 21:10 NerdyJason
The diffusion coefficients for nitrogen in iron are given at two temperatures, as follows: t(k) 773 1183 d(m/s) 3.11 x 10-12 1.98 x 10-10 a. determine the values of d, and the activation energy qd. 5 pts b. what is the magnitude of d at 775°c (1048 k)? 5pts c. a iron plate exposed to a nitriding environment on one side and a denitriding environment on the other at 775°c. calculate the diffusion flux at steady state of carbon through the plate if the concentrations of carbon at positions of 3 and 10 mm beneath the carburizing surface are 1.8 and 0.7 kg/m respectively using the diffusion coefficient in 5. b
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The diffusion coefficients for nitrogen in iron are given at two temperatures, as follows: t(k) 773...
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