Comparison of Oxidation Behavior of Various Reactive Elements in Alloys during Electroslag Remelting (ESR) Process: An Overviewopen access
- Authors
- Duan, Sheng Chao; Park, Joo Hyun
- Issue Date
- Oct-2022
- Publisher
- Nippon Tekko Kyokai/Iron and Steel Institute of Japan
- Keywords
- electroslag remelting; CaF2-containing slag; oxidation loss; ion and molecule coexistence theory (IMCT); activity
- Citation
- ISIJ International, v.62, no.8, pp 1561 - 1572
- Pages
- 12
- Indexed
- SCIE
SCOPUS
- Journal Title
- ISIJ International
- Volume
- 62
- Number
- 8
- Start Page
- 1561
- End Page
- 1572
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/112659
- DOI
- 10.2355/isijinternational.ISIJINT-2022-015
- ISSN
- 0915-1559
1347-5460
- Abstract
- The oxidation behavior of various reactive elements, such as Al/Ti, B/Si, and rare earth metals (REM), by electroslag remelting (ESR) type slag has been investigated utilizing the systematic thermodynamic analysis based on the calculated activity in the fluoride-containing slags by the ion and molecule coexistence theory (IMCT). The results indicate that the IMCT model can be reliably applied to calculate the activity of each component in the ESR type slag. The oxidation behavior of the various reactive elements is completely different by changing the same component in the slag, such as CaO and Al2O3, during the ESR process. Therefore, it is indispensable to find a key parameter to control the homogeneity of the reactive elements in remelted ingots by comparing the effects of the activity of each component and temperature on the equilibrium content of the various reactive elements in alloy melts. The results demonstrate that the oxidation loss of Al/Ti, B/Si, and REM (Ce and La) can be effectively prevented by employing TiO2, B2O3/SiO2, and CaO during the ESR process. Oxidation behavior of B/Si and Ce(La)/Al is weakly susceptible to temperature fluctuation compared with that of Al/Ti in alloy melts, which can be controlled by adding TiO2.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/112659)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.