Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

Effect of trace magnesium addition on the characteristics of mechanical properties in high strength low alloy steel

Authors
Ming Lv, Xiaobing Li, Yi Min, Chengjun Liu, Maofa Jiang, Bo Wang, Xiaopu Wang
Corresponding Author
Ming Lv
Available Online October 2015.
DOI
https://doi.org/10.2991/icadme-15.2015.99How to use a DOI?
Keywords
High strength low alloy steel; magnesium; mechanical properties; microstructure
Abstract

In order to reveal the function of Mg on the characteristics of mechanical properties in high strength low alloy steel, the steels containing with different Mg contents were refined with vacuum induction furnace and rolled with double-stick reversible rolling mill. The characteristics of mechanical properties and rolled microstructure were systematically investigated in present study. The results show that, the yield and the tensile strengths increase with Mg content from 0.0008% to 0.0026%. The 0.0026%Mg addition makes the yield strength, tensile strength, and elongation of steel increase to 473MPa, 605MPa and 36.5%, increasing by 38MPa,70MPa, and 8% compared with the steel without Mg addition. The improved toughness is obtained both the transversal and longitudinal impact, and the increment in the Charpy impact toughness is also characterized to increase with the concentrations from 0.0008% to 0.0026%. The improved toughness and tensile of Mg-containing steels are attributed to both the refined microstructure and the bainite dominated microstructure in steel. Moreover, the bainitic structure obtained by the addition of Mg into the molten steel results in a continuous yield behavior emerges in 0.0026%Mg steel.

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 5th International Conference on Advanced Design and Manufacturing Engineering
Series
Advances in Engineering Research
Publication Date
October 2015
ISBN
978-94-6252-113-1
ISSN
2352-5401
DOI
https://doi.org/10.2991/icadme-15.2015.99How 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  - Ming Lv
AU  - Xiaobing Li
AU  - Yi Min
AU  - Chengjun Liu
AU  - Maofa Jiang
AU  - Bo Wang
AU  - Xiaopu Wang
PY  - 2015/10
DA  - 2015/10
TI  - Effect of trace magnesium addition on the characteristics of mechanical properties in high strength low alloy steel
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 492
EP  - 498
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.99
DO  - https://doi.org/10.2991/icadme-15.2015.99
ID  - Lv2015/10
ER  -