Effects of CeO2 on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels

Zeyun Cai; Bo Song; Longfei Li; Zhen Liu

doi:10.1007/978-3-030-05955-2_36

Effects of CeO₂ on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels

Zeyun Cai
, Bo Song^*
, Longfei Li
, Zhen Liu

^*Corresponding author for this work

University of Science and Technology Beijing

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Effects of CeO₂ on melting temperature, viscosity and structure of mold fluxes for the continuous casting of rare earths alloyed heavy railway steels were studied. Results showed that the melting temperature of mold fluxes with 0, 4, 8 and 12 wt% CeO₂ contents were 1066, 1088, 1090 and 1102 °C, respectively. Moreover, the viscosity values at 1300 °C were 0.40, 0.38 and 0.34 Pa s, but the viscosity of slags with 12 wt% CeO₂ could not be measured because slags were solid. Therefore, the viscosity at 1300 °C decreased with the increasing of CeO₂ contents, although the melting temperature increased. Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) confirmed that CeO₂ enhanced the de-polymerization of mold fluxes, and the relative percentage content of O²⁻ in melts increased, leading to the viscosity decrease at 1300 °C.

Original language	English
Title of host publication	10th International Symposium on High-Temperature Metallurgical Processing, 2019
Editors	Jerome P. Downey, Ender Keskinkilic, Tao Jiang, Zhiwei Peng, Rafael Padilla, Onuralp Yücel, Jiann-Yang Hwang, Dean Gregurek, Baojun Zhao
Publisher	Springer International Publishing
Pages	381-391
Number of pages	11
ISBN (Print)	9783030059545
DOIs	https://doi.org/10.1007/978-3-030-05955-2_36
State	Published - 2019
Externally published	Yes
Event	10th International Symposium on High-Temperature Metallurgical Processing held at the TMS Annual Meeting and Exhibition, 2019 - San Antonio, United States Duration: 10 Mar 2019 → 14 Mar 2019

Publication series

Name	Minerals, Metals and Materials Series
ISSN (Print)	2367-1181
ISSN (Electronic)	2367-1696

Conference

Conference	10th International Symposium on High-Temperature Metallurgical Processing held at the TMS Annual Meeting and Exhibition, 2019
Country/Territory	United States
City	San Antonio
Period	10/03/19 → 14/03/19

Keywords

CeO
Melting temperature
RE steel
Structure
Viscosity

Access to Document

10.1007/978-3-030-05955-2_36

Cite this

Cai, Z., Song, B., Li, L., & Liu, Z. (2019). Effects of CeO₂ on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels. In J. P. Downey, E. Keskinkilic, T. Jiang, Z. Peng, R. Padilla, O. Yücel, J.-Y. Hwang, D. Gregurek, & B. Zhao (Eds.), 10th International Symposium on High-Temperature Metallurgical Processing, 2019 (pp. 381-391). (Minerals, Metals and Materials Series). Springer International Publishing. https://doi.org/10.1007/978-3-030-05955-2_36

Cai, Zeyun ; Song, Bo ; Li, Longfei et al. / Effects of CeO₂ on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels. 10th International Symposium on High-Temperature Metallurgical Processing, 2019. editor / Jerome P. Downey ; Ender Keskinkilic ; Tao Jiang ; Zhiwei Peng ; Rafael Padilla ; Onuralp Yücel ; Jiann-Yang Hwang ; Dean Gregurek ; Baojun Zhao. Springer International Publishing, 2019. pp. 381-391 (Minerals, Metals and Materials Series).

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title = "Effects of CeO2 on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels",

abstract = "Effects of CeO2 on melting temperature, viscosity and structure of mold fluxes for the continuous casting of rare earths alloyed heavy railway steels were studied. Results showed that the melting temperature of mold fluxes with 0, 4, 8 and 12 wt\% CeO2 contents were 1066, 1088, 1090 and 1102 °C, respectively. Moreover, the viscosity values at 1300 °C were 0.40, 0.38 and 0.34 Pa s, but the viscosity of slags with 12 wt\% CeO2 could not be measured because slags were solid. Therefore, the viscosity at 1300 °C decreased with the increasing of CeO2 contents, although the melting temperature increased. Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) confirmed that CeO2 enhanced the de-polymerization of mold fluxes, and the relative percentage content of O2− in melts increased, leading to the viscosity decrease at 1300 °C.",

keywords = "CeO, Melting temperature, RE steel, Structure, Viscosity",

author = "Zeyun Cai and Bo Song and Longfei Li and Zhen Liu",

note = "Publisher Copyright: {\textcopyright} 2019, The Minerals, Metals \& Materials Society.; 10th International Symposium on High-Temperature Metallurgical Processing held at the TMS Annual Meeting and Exhibition, 2019 ; Conference date: 10-03-2019 Through 14-03-2019",

year = "2019",

doi = "10.1007/978-3-030-05955-2\_36",

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editor = "Downey, \{Jerome P.\} and Ender Keskinkilic and Tao Jiang and Zhiwei Peng and Rafael Padilla and Onuralp Y{\"u}cel and Jiann-Yang Hwang and Dean Gregurek and Baojun Zhao",

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Cai, Z, Song, B, Li, L & Liu, Z 2019, Effects of CeO₂ on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels. in JP Downey, E Keskinkilic, T Jiang, Z Peng, R Padilla, O Yücel, J-Y Hwang, D Gregurek & B Zhao (eds), 10th International Symposium on High-Temperature Metallurgical Processing, 2019. Minerals, Metals and Materials Series, Springer International Publishing, pp. 381-391, 10th International Symposium on High-Temperature Metallurgical Processing held at the TMS Annual Meeting and Exhibition, 2019, San Antonio, United States, 10/03/19. https://doi.org/10.1007/978-3-030-05955-2_36

Effects of CeO₂ on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels. / Cai, Zeyun; Song, Bo; Li, Longfei et al.
10th International Symposium on High-Temperature Metallurgical Processing, 2019. ed. / Jerome P. Downey; Ender Keskinkilic; Tao Jiang; Zhiwei Peng; Rafael Padilla; Onuralp Yücel; Jiann-Yang Hwang; Dean Gregurek; Baojun Zhao. Springer International Publishing, 2019. p. 381-391 (Minerals, Metals and Materials Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effects of CeO2 on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels

AU - Cai, Zeyun

AU - Song, Bo

AU - Li, Longfei

AU - Liu, Zhen

PY - 2019

Y1 - 2019

N2 - Effects of CeO2 on melting temperature, viscosity and structure of mold fluxes for the continuous casting of rare earths alloyed heavy railway steels were studied. Results showed that the melting temperature of mold fluxes with 0, 4, 8 and 12 wt% CeO2 contents were 1066, 1088, 1090 and 1102 °C, respectively. Moreover, the viscosity values at 1300 °C were 0.40, 0.38 and 0.34 Pa s, but the viscosity of slags with 12 wt% CeO2 could not be measured because slags were solid. Therefore, the viscosity at 1300 °C decreased with the increasing of CeO2 contents, although the melting temperature increased. Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) confirmed that CeO2 enhanced the de-polymerization of mold fluxes, and the relative percentage content of O2− in melts increased, leading to the viscosity decrease at 1300 °C.

AB - Effects of CeO2 on melting temperature, viscosity and structure of mold fluxes for the continuous casting of rare earths alloyed heavy railway steels were studied. Results showed that the melting temperature of mold fluxes with 0, 4, 8 and 12 wt% CeO2 contents were 1066, 1088, 1090 and 1102 °C, respectively. Moreover, the viscosity values at 1300 °C were 0.40, 0.38 and 0.34 Pa s, but the viscosity of slags with 12 wt% CeO2 could not be measured because slags were solid. Therefore, the viscosity at 1300 °C decreased with the increasing of CeO2 contents, although the melting temperature increased. Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) confirmed that CeO2 enhanced the de-polymerization of mold fluxes, and the relative percentage content of O2− in melts increased, leading to the viscosity decrease at 1300 °C.

KW - CeO

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KW - RE steel

KW - Structure

KW - Viscosity

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DO - 10.1007/978-3-030-05955-2_36

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SN - 9783030059545

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BT - 10th International Symposium on High-Temperature Metallurgical Processing, 2019

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A2 - Keskinkilic, Ender

A2 - Jiang, Tao

A2 - Peng, Zhiwei

A2 - Padilla, Rafael

A2 - Yücel, Onuralp

A2 - Hwang, Jiann-Yang

A2 - Gregurek, Dean

A2 - Zhao, Baojun

PB - Springer International Publishing

T2 - 10th International Symposium on High-Temperature Metallurgical Processing held at the TMS Annual Meeting and Exhibition, 2019

Y2 - 10 March 2019 through 14 March 2019

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Cai Z, Song B, Li L, Liu Z. Effects of CeO₂ on Melting Temperature, Viscosity and Structure of Mold Fluxes for Casting Rare Earths Alloyed Steels. In Downey JP, Keskinkilic E, Jiang T, Peng Z, Padilla R, Yücel O, Hwang JY, Gregurek D, Zhao B, editors, 10th International Symposium on High-Temperature Metallurgical Processing, 2019. Springer International Publishing. 2019. p. 381-391. (Minerals, Metals and Materials Series). doi: 10.1007/978-3-030-05955-2_36