Carbon is diffused on the surface of a steel plate by carburization heat treatment. Steel contains 0.20% carbon. The carburization process is applied at 1000 ° C in methane gas (CH4) atmosphere and the amount of carbon in the furnace environment is 1.3%. Find the diffusion time required for the area from the surface of the steel to a depth of 0.6 mm to reach 0.9% carbon. The diffusion coefficient at 1000 ° C is 3x10-11 m2 / sec.
Carbon is diffused on the surface of a steel plate by carburization heat treatment. Steel contains 0.20% carbon. The carburization process is applied at 1000 ° C in methane gas (CH4) atmosphere and the amount of carbon in the furnace environment is 1.3%. Find the diffusion time required for the area from the surface of the steel to a depth of 0.6 mm to reach 0.9% carbon. The diffusion coefficient at 1000 ° C is 3x10-11 m2 / sec.
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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Carbon is diffused on the surface of a steel plate by carburization heat treatment. Steel contains 0.20% carbon. The carburization process is applied at 1000 ° C in methane gas (CH4) atmosphere and the amount of carbon in the furnace environment is 1.3%. Find the diffusion time required for the area from the surface of the steel to a depth of 0.6 mm to reach 0.9% carbon. The diffusion coefficient at 1000 ° C is 3x10-11 m2 / sec.
Transcribed Image Text:a) (100)
d) (010)
g) (110)
b) (100)
e) (001)
h) (111)
c) (010)
D (001)
) (101)
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