Proceedings of the 2015 International Conference on Material Science and Applications

Effect of Calcium and Magnesium Addition on the Inclusions in the Cast Microstructure of HSLA Steel

Authors
Yan Liu, Kai Wang, Yang Liu, Jian-Ming Wang
Corresponding Author
Yan Liu
Available Online June 2014.
DOI
10.2991/icmsa-15.2015.157How to use a DOI?
Keywords
Calcium, Magnesium, Cast Microstructure, Inclusions, HSLA Steel.
Abstract

A new technology to obtain a fine-structured and high-toughness HAZ of HSLA steel for high heat input welding is developed using metallurgical thermodynamics, physical chemistry of metallurgy and material processing methods synthetically in this study. A kind of HSLA steel is designed in this experiment. The thermal stability second phase particles which would not be dissolved or aggregated at high temperature will be expected by means of adding calcium and magnesium simultaneously into the steel in the form of Si-Ca alloy and Mg-Zr alloy. The effect of calcium and magnesium addition on the distribution and composition of the inclusions in the cast microstructure of HSLA steel was analyzed. The results show that the distribution of the inclusions is more dense and uniform with respect to the raw steel, and the size of the inclusions is smaller than the ones in the raw steel after adding Ca and Mg elements simultaneously. Lots of Ca and Mg oxides and inclusions formed after pouring into ingots. The main components of the inclusions formed are Al2O3-MnS-CaO-ZrO2-MgO-SiO2, and most Ca and Mg inclusions are spherical and ellipsoidal.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 International Conference on Material Science and Applications
Series
Advances in Physics Research
Publication Date
June 2014
ISBN
978-94-62520-75-2
ISSN
2352-541X
DOI
10.2991/icmsa-15.2015.157How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Yan Liu
AU  - Kai Wang
AU  - Yang Liu
AU  - Jian-Ming Wang
PY  - 2014/06
DA  - 2014/06
TI  - Effect of Calcium and Magnesium Addition on the Inclusions in the Cast Microstructure of HSLA Steel
BT  - Proceedings of the 2015 International Conference on Material Science and Applications
PB  - Atlantis Press
SP  - 851
EP  - 855
SN  - 2352-541X
UR  - https://doi.org/10.2991/icmsa-15.2015.157
DO  - 10.2991/icmsa-15.2015.157
ID  - Liu2014/06
ER  -