Engineering, 19.03.2020 16:35 noobnoobnoobnoob666
The activation energy for diffusion in BCC iron is 84 kJ/mol. Which of the following explains why the carbide precipitation activation energy is slightly higher than the BCC diffusion activation energy?
a. Steel is FCC and the activation energy for FCC diffusion is higher
b. Precipitation requires the diffusional activation energy plus an additional energy to form the precipitate.
c. Precipitation requires less energy than diffusion
d. The carbide is orthorhombic which is a much higher energy than BCC
Answers: 3
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The activation energy for diffusion in BCC iron is 84 kJ/mol. Which of the following explains why th...
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