A steel machine part is to be carburized in a furnace. The steel initially has a carbon content of 0.3% by weight. The arburizing agent produces a surface carbon concentration of 1.4% by weight. It is desired that the carbon concentration at depth of 0.75 mm from the surface be 19% by weight. How long should the part be kept in the carburizing furnace? Assume hat the diffusion coefficient of carbon in steel is 3 * 1o11 m2 /s for the furnace temperature.
A steel machine part is to be carburized in a furnace. The steel initially has a carbon content of 0.3% by weight. The arburizing agent produces a surface carbon concentration of 1.4% by weight. It is desired that the carbon concentration at depth of 0.75 mm from the surface be 19% by weight. How long should the part be kept in the carburizing furnace? Assume hat the diffusion coefficient of carbon in steel is 3 * 1o11 m2 /s for the furnace temperature.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:A steel machine part is to be carburized in a furnace. The steel initially has a carbon content of 0.3% by weight. The
carburizing agent produces a surface carbon concentration of 1.4% by weight. It is desired that the carbon concentration at
a depth of 0.75 mm from the surface be 1% by weight. How long should the part be kept in the carburizing furnace? Assume
that the diffusion coefficient of carbon in steel is 3 * 1011 m2 /s for the furnace temperature.
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