TY - JOUR
T1 - Aluminum Deoxidation Equilibrium of Fe-Ni Alloy at 1773 K and 1873 K
AU - Fukaya, Hiroshi
AU - Kajikawa, Koji
AU - Malfliet, Annelies
AU - Blanpain, Bart
AU - Guo, Muxing
N1 - Publisher Copyright:
© 2018, The Minerals, Metals & Materials Society and ASM International.
PY - 2018/10/1
Y1 - 2018/10/1
N2 - The aluminum deoxidation equilibrium in molten Fe-36 mass pct Ni and Fe-46 mass pct Ni alloys was experimentally determined at 1773 K and 1873 K to obtain the thermodynamic parameters around the liquidus temperature, which is required to predict the deoxidation reaction for the ingot-casting process. Automatic SEM-EDS inclusion analysis was performed to estimate the undissolved oxygen content. Thermodynamic analysis on Al deoxidation was carried out using Miki and Hino’s formula, which is based on Darken’s quadratic formalism and the Redlich–Kister polynomial. From the composition dependence of the apparent equilibrium constant in Fe-Ni alloy, the necessity of the third-order interaction parameter of Ni-Al was found. Then, the interaction parameters of Fe-Al, Al-O and Ni-Al were evaluated.
AB - The aluminum deoxidation equilibrium in molten Fe-36 mass pct Ni and Fe-46 mass pct Ni alloys was experimentally determined at 1773 K and 1873 K to obtain the thermodynamic parameters around the liquidus temperature, which is required to predict the deoxidation reaction for the ingot-casting process. Automatic SEM-EDS inclusion analysis was performed to estimate the undissolved oxygen content. Thermodynamic analysis on Al deoxidation was carried out using Miki and Hino’s formula, which is based on Darken’s quadratic formalism and the Redlich–Kister polynomial. From the composition dependence of the apparent equilibrium constant in Fe-Ni alloy, the necessity of the third-order interaction parameter of Ni-Al was found. Then, the interaction parameters of Fe-Al, Al-O and Ni-Al were evaluated.
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U2 - 10.1007/s11663-018-1336-2
DO - 10.1007/s11663-018-1336-2
M3 - Article
AN - SCOPUS:85049926614
SN - 1073-5615
VL - 49
SP - 2389
EP - 2399
JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
IS - 5
ER -