Aluminum deoxidation equilibrium in liquid Fe-36%Ni alloy
SCIE
SCOPUS
- Title
- Aluminum deoxidation equilibrium in liquid Fe-36%Ni alloy
- Authors
- Lee, SB; Jung, SM; Lee, HG; Rhee, CH
- Date Issued
- 2002-01
- Publisher
- IRON STEEL INST JAPAN KEIDANREN KAIKA
- Abstract
- For thermodynamic prediction, the deoxidation equilibrium of aluminum in Fe-36%Ni alloy was investigated by employing a cold crucible under an Air gas atmosphere at 1 773 K. The interaction parameters between aluminum and oxygen by taking liquid Fe-36%Ni alloy as the basis (i.e., solvent) are evaluated as follows: e(O)(Al) = -3.8, r(O)(Al) = 0.9, e(Al)(O) = -6.4, r(A)(lO) = 700, r(Al)(Al.O) = 3.1, r(O)(Al.O) = 833 within the composition range of [Al]<1 mass%. The equilibrium constant for reaction 2Al((in Fe-36%Ni)) +3Q((in Fe-36%Ni)) = Al2O3(s) was obtained in the temperature range of 1 773 to 1973 K by using data from the present study and from previous works reported: log K-AO=0.58-24460/T The deoxidation equilibrium of aluminum in Fe-36%Ni can thus be thermodynamically described in the range of [Al]<1 mass% using both the first and second order interaction parameters as well as the equilibrium constant determined in this study.
- Keywords
- deoxidation equilibrium; equilibrium constant; interaction parameter; aluminum; nickel; deoxidation product; inclusion; cold crucible; IRON; OXYGEN; NICKEL
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29808
- DOI
- 10.2355/isijinternational.42.679
- ISSN
- 0915-1559
- Article Type
- Article
- Citation
- ISIJ INTERNATIONAL, vol. 42, no. 7, page. 679 - 684, 2002-01
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