Mode of transition from Haegg iron carbide to cementite
Journal Article
·
· J. Am. Chem. Soc.; (United States)
By means of thermomagnetic studies it was concluded that: The reaction of Hagg carbide, Fe/sub 2/C, to yield cementite, Fe/sub 3/C, and free carbon is a discontinuous (or heterogeneous) precipitation. Hagg carbide and cementite have narrow ranges of composition and apparently do not form intermediate metastable solid solutions. The reaction 3Fe/sub 2/C--Hagg ..-->.. 2Fe/sub 3/C + C becomes appreciable only at about 450/sup 0/, while the reaction Fe/sub 2/C--Hagg + Fe ..-->.. Fe/sub 3/C (described elsewhere) starts below 300/sup 0/. The ''unstable'' or ''labile'' carbide of Kolbel and co-workers is simply Hagg carbide.
- OSTI ID:
- 5280066
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 72; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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