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

DOI

10.2991/icmsa-15.2015.156How to use a DOI?

Keywords

Calcium, Magnesium, Cast Microstructure, HSLA Steel.

Abstract

Using the oxide of high melting-point and high stability to pin the grain boundaries is an effective method to improve the welding performance of the HSLA steel 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 cast microstructure and inclusions of HSLA steel were analyzed. The results show that the cast microstructure is mainly consist of lamellar and acicular ferrite, a small amount of pearlite and bainite. Compared with the original steel, there are bainites presenting in the experimental steel after adding 3 wt% Ca and 3 wt% Mg at the same time.

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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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 Cast Microstructure of HSLA Steel
BT  - Proceedings of the 2015 International Conference on Material Science and Applications
PB  - Atlantis Press
SP  - 846
EP  - 850
SN  - 2352-541X
UR  - https://doi.org/10.2991/icmsa-15.2015.156
DO  - 10.2991/icmsa-15.2015.156
ID  - Liu2014/06
ER  -