Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 31 (1924) > Annual Issue
Document Type
Research
Abstract
Photographic evidence is presented which shows that there is produced in the critical range a large number of small carbon spots throughout the ferrite matrix. Since the spots are not present above the range or in pearlite or solid solution areas they are considered to be the result of the precipitation of carbon and ferrite at the iron-carbon eutectoid. The details of the mechanism of CO x CO2 acting as catalysts to break down cementite is presented from the standpoint of cementite being metastable. When this is the case a pressure gradient will exist for CO from the cementite toward the temper carbon and a similar gradient will exist for CO2 in the opposite direction. It is concluded that the gases do not transport carbon from cementite to the primary temper carbon spots under ordinary conditions of graphitization.
Publication Date
1924
Journal Title
Proceedings of the Iowa Academy of Science
Volume
31
Issue
1
First Page
278
Last Page
278
Copyright
©1924 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Flanders, H. E. and Hayes, Anson
(1924)
"Structural Evidences of an Iron-Carbon Eutectoid,"
Proceedings of the Iowa Academy of Science, 31(1), 278-278.
Available at:
https://scholarworks.uni.edu/pias/vol31/iss1/60