THE SOLUBILITY OF CAO-CENTER-DOT-CR2O3 IN THE CAO-CAF2 SYSTEM ASSOCIATED WITH DEPHOSPHORIZATION OF FE-CR-C MELTS

Authors
KANZAKI Y TSUKIHASHI F SANO N
Citation
Y. Kanzaki et al., THE SOLUBILITY OF CAO-CENTER-DOT-CR2O3 IN THE CAO-CAF2 SYSTEM ASSOCIATED WITH DEPHOSPHORIZATION OF FE-CR-C MELTS, Tetsu to hagane, 80(1), 1994, pp. 13-17
Citations number
8
Categorie Soggetti
Metallurgy & Mining
Journal title
Tetsu to hagane → ACNP
ISSN journal
00211575
Volume
80
Issue
1
Year of publication
1994
Pages
13 - 17
Database
ISI
SICI code
0021-1575(1994)80:1<13:TSOCIT>2.0.ZU;2-D
Abstract
The solubility of chromium oxide in the CaO-CaF2 system has been deter mined at 1773K by equilibrating the flux with a CaO.Cr2O3 pellet at th e oxygen partial pressure of 2.28 x 10(-7) Pa. The solubility of Cr2O3 varies from 0.80 to 1.28 mass% in the flux with increasing the CaO co ntent from 15.6 to 20.6 mass%. In case of the dephosphorization of Fe- Cr-C melts with CaO bearing fluxes, the prevailing oxygen partial pres sure of the system is controlled by the reaction between CaO and Cr2O3 forming CaO.Cr2O3. The phosphorus distribution ratio between Fe-Cr-C- satd. alloys and CaO-SiO2-CaF2 fluxes saturated with CaO.Cr2O3, CaO an d 3CaO.SiO2 has been measured at 1573K. The phosphorus and chromium di stribution ratios decrease with increasing chromium content of the met al from 1 to 13 mass%.