Production of alloys in the Fe–Co system with an oxygen concentration below 10 ppm
- Authors: Dashevskii V.Y.1, Aleksandrov A.A.1, Leont’ev L.I.1
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Affiliations:
- Baikov Institute of Metallurgy and Materials Science
- Issue: Vol 475, No 2 (2017)
- Pages: 145-148
- Section: Physical Chemistry
- URL: https://journals.rcsi.science/0012-5016/article/view/153710
- DOI: https://doi.org/10.1134/S0012501617080024
- ID: 153710
Cite item
Abstract
A fundamentally new solution of the challenge of producing alloys in the Fe–Co system with an oxygen concentration below 10 ppm (10–3%) has been for the first time justified and demonstrated. A thermodynamic analysis showed that decreasing the pressure of the gas phase over the melt significantly increases the deoxidizing power of carbon. At cobalt and carbon contents characteristic of soft- and hard-magnetic alloys and a total pressure of 0.01 atm, the oxygen concentration was 10–1 ppm (10–3–10–4%). With increasing cobalt content of the melt, the deoxidizing power of carbon increases. The curves of the oxygen solubility in carbon-containing iron–cobalt melts pass through a minimum, which shifts toward lower carbon contents with increasing cobalt content of the melt.
About the authors
V. Ya. Dashevskii
Baikov Institute of Metallurgy and Materials Science
Author for correspondence.
Email: vdashev@imet.ac.ru
Russian Federation, Moscow, 119334
A. A. Aleksandrov
Baikov Institute of Metallurgy and Materials Science
Email: vdashev@imet.ac.ru
Russian Federation, Moscow, 119334
L. I. Leont’ev
Baikov Institute of Metallurgy and Materials Science
Email: vdashev@imet.ac.ru
Russian Federation, Moscow, 119334
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