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Thermodynamics of ‘ESR’ slag for producing nickel alloys
- Authors
- Yang, Jun gil; Park, Joo hyun
- Issue Date
- May-2016
- Publisher
- Springer International Publishing AG
- Keywords
- Electrode; ESR (Electro-Slag Remelting) process; Ingot; Ni-base alloys
- Citation
- Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016, pp 745 - 748
- Pages
- 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016
- Start Page
- 745
- End Page
- 748
- Abstract
- Ni-base alloys have been used for steam turbine in power plant that operates at temperatures higher than 873 K due to their high strength and superior heat resistance. Commercially, nickel alloys are generally produced by ESR (Electro-Slag Remelting) process with high cleanliness. During the ESR process, however, several alloying elements such as Ti and Al react with molten slag (2Ti+Al2O3=2Al+Ti2O3), resulting in a different composition between electrode and solidified ingot. Therefore, in the present study, we investigated the equilibrium between CaO-Al2O3-CaF2-TiOxtype ESR slag and Ni-Ti-Al(-C) alloys at 1773 K to minimize the change in the alloy composition during ESR process. © 2016 by The Minerals, Metals & Materials Society.
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Related Researcher
- Park, Joo Hyun
- ERICA 첨단융합대학 (ERICA 신소재·반도체공학전공)