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Effect of Alloying Elements on Mechanical Properties of High-Strength Low-Alloy Steel

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Abstract:

In this study, the two types of high-strength low-alloy steels were melted and cast in a vacuum induction furnace. Phase transition temperature of HSLA steel was calculated by JMatPro software. The calculation results show that the two different types of HSLA steels which have equal phase proportions of ferrite and austenite at a temperature of approximately 820 and 800 °C in HSLA-I and HSLA-II, respectively. In addition, the effect of chemical composition on the microstructure and mechanical properties of steels were studied. The results indicate that the ultimate tensile stress value of HSLA-II samples was greater than the HSLA-I samples by about 35%, and the yield stress and breaking strength value of HSLA-II were higher than HSLA-I as well.

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Periodical:

Materials Science Forum (Volume 1007)

Pages:

41-46

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1007.41

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Online since:

August 2020

Authors:

Ning Li*, Wilasinee Kingkam, Zi Ming Bao, Ren Heng Han, Yao Huang, He Xin Zhang, Cheng Zhi Zhao

Keywords:

HSLA Steel, Mechanical Properties, Vickers Hardness

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© 2020 Trans Tech Publications Ltd. All Rights Reserved

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