A plate has 0.25 wt% initial carbon concentration and is at 950C. The surface is then exposed t carbon-rich atmosphere so that the concentration of carbon is maintained at 1.25 wt%. How lo it take for the carbon content to reach 0.8 wt% at 0.5 mm below the surface? Diffusivity is 1.6 m2/s.

A plate has 0.25 wt% initial carbon concentration and is at 950C. The surface is then exposed t carbon-rich atmosphere so that the concentration of carbon is maintained at 1.25 wt%. How lo it take for the carbon content to reach 0.8 wt% at 0.5 mm below the surface? Diffusivity is 1.6 m2/s.

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter4: Temperature Effects On Atom Arrangements And Atom Motion

Section: Chapter Questions

Problem 4.24P

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A plate has 0.25 wt% initial carbon concentration and is at 950C. The surface is then exposed t
carbon-rich atmosphere so that the concentration of carbon is maintained at 1.25 wt%. How lo
it take for the carbon content to reach 0.8 wt% at 0.5 mm below the surface? Diffusivity is 1.6*
m2/s.

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