Show transcribed image text Vacancy diffusion is much slower than interstitial diffusion. In order to diffuse Cr into BCC-Fe at 850°C, assume that the pre-exponential factor (Do) is 3.7×103 m2/sec and the activation energy is 267,000-J/mole. The gas constant (R) is 8.31-J/mole K.
Vacancy diffusion is much slower than interstitial diffusion. In order to diffuse Cr into BCC-Fe at 850°C, assume that the pre-exponential factor (Do) is 3.7×103 m2/sec and the activation energy is 267,000-J/mole. The gas constant (R) is 8.31-J/mole K.
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