Effect of trace magnesium addition on the characteristics of mechanical properties in high strength low alloy steel
- 10.2991/icadme-15.2015.99How to use a DOI?
- High strength low alloy steel; magnesium; mechanical properties; microstructure
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.
- © 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 - 10.2991/icadme-15.2015.99 ID - Lv2015/10 ER -