Metallurgical Engineering > GATE 2021 > Diffusion
A thick steel plate containing 0.1 wt.% C is carburized at 950oC. The plate's surface carbon concentration is maintained at 1.1 wt.% C. After 9 hours, the depth (in mm) below the surface at which the carbon concentration is 0.6 wt.% C will be: _______ (round off to 2 decimal places).
Given: Diffusivity of carbon in γ-Fe at 950oC = 1.6 x 10-11 m2 s-1 Error function table:
Given: Diffusivity of carbon in γ-Fe at 950oC = 1.6 x 10-11 m2 s-1 Error function table:
Correct : 0.65
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