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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 828 pages |
| ISBN: | 978-0-9879917-0-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
The Equilibrium Between Titanium And Oxygen In Liquid Fe-Ni, Fe-Cr And Fe-Cr-Ni Alloys
Seongho SEOK1; Takahiro Miki2; Mitsutaka Hino3;1RIST, Pohang, Korea, South; 2TOHOKU UNIVERSITY, Sendai, Japan; 3HOKKAIDO POLYTECHNIC COLLEGE, Hokkaido, Japan;
Type of Paper: Regular
Id Paper: 446
Topic: 4
Abstract:
Titanium deoxidation equilibrium relations in liquid Fe-Ni, Fe-Cr and Fe-Cr-Ni alloys which were saturated with `Ti3O5` and Ti2O3 phase, were evaluated in present paper. The effect of temperature and titanium content on evaluated in those alloys, and the equilibrium oxygen content in each alloy increased with increasing equilibrium temperature and with decreasing titanium content. In order to fix the activity of deoxidation product, `Ti3O5` were used in crucible material. The deoxidation product were analyzed by FE-SEM EBSD method and the solubility of alloying elements - Fe, Ni and/or Cr, were done by SEM EDS. From the present experimental results, the activity coefficients of components were estimated by Redlich-Kister polynomial. The equilibrium relation between titanium and oxygen in those alloys were estimated using deduced Redlich-Kister polynomial parameters and compared with the experimental results and it was confirmed that the estimated titanium deoxidation equilibria were coincided with experimental results.