Iron Carbon diagrams over the Years


By:Cees van de Velde
last revision: January 15, 2004


cvdv@home.nl

Year of publication:	1909
Authors :	N.Gutowsky
Source :	Zur Theorie des Schmelz- und Erstarrungsprozesses der Eisen-Kohlenstofflegierungen, Metallurgie, Vol. (1909),pp.731-743.
	(On the theory of melting and solidification processes of iron carbon alloys.)

Notes:
Gutowsky completes the iron carbon diagram by making new cooling curves and using quenching techniques.
An interesting remark was made about the graphite liquidus line BD:
"Concerning line BD, cooling curves did not show any proof of the existence of this line, not did quenching tests."


Image

German-English Translation.



Nach Versuchen des Autors=According to tests made by the author (Gutowsky)
Nach Angaben von Prof. Heyn=According to prof. Heyn
Nicht bestimmte Linien=Lines that were not determined
Haltepunkte der Abkühlungskurven=Cooling curve arrests
Von aussen abgeschmolzene Proben=Test pieces that started to melt on the outside
Nur unter dem Mikroskop geschmolzene Proben=Test pieces that started to melt (only visible under the microscope)
Nicht geschmolzene Proben=Test pieces where no melting had occurred.
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