Effect of Vanadium on the Microstructure and Property of Rebar Steel

Abstract:

Rebar steel is used in the construction of various buildings. Vanadium (V), one of microalloying elements, is often added in the rebar steel to improve mechanical property. In order to analyse the effect of V on the microstructure and property of rebar steel, 0.043 wt.% V was added in a 20MnSi rebar steel. The base steel and V added steel were refined in a 50 kg vacuum induction furnace and rolled to plates of 14 mm thick. The mechanical properties of two steels were compared by tensile tests on a Wan-10000 tensile testing machine. The microstructure and precipitation of two steels were analysed by SEM and TEM observations. The microstructures of two steels consist of ferrite and pearlite. However, the grains of V bearing steel are finer. Moreover, fine nanoscale precipitates of V can be observed in V bearing steel. Therefore, the mechanical property of V addition rebar steel is improved by gain refinement strengthening and precipitation strengthening.

• Periodical: Materials Science Forum (Volume 928)
• Pages: 269-272
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.928.269
• Online since: August 2018
• Authors: Zi Shan Yao, Guang Xu*, Ming Xing Zhou
• Keywords: Microalloyed Steel, Microstructure, Property, Rebar Steel, Vanadium

References

[1] Hong S G, Jun H J, Kang K B and Park C G 2003 Scripta Mater. 48 1201.

[2] Misra R D K, Nathani H, Hartmann J E and Sicilianod F 2005 Mater. Sci. Eng. A 394 339.

[3] Misra R D K, Weatherly G C, Hartmann J E and Boucek A J 2001 Mater. Sci. Technol. 17 1119.

[4] Hu Z W, Xu G, Yang H L and Zhang C 2014 J. Mater. Eng. Perform 23 4216.

[5] He K J and Baker T N 1993 Mater. Sci. Eng. A 169 53.

[6] Jia Z, Misra R D K, O'Malley R and Jansto S.J. 2011 Mater. Sci. Eng. A 528 7077.

[7] Xu G, Gan X L, Ma G M, Luo F and Zou H 2010 Mater. Design. 31 2891.

[8] Shanmugam S, Ramisetti N K, Misra R D K, Mannering T, Panda D and Jansto S 2007 Mater. Sci. Eng. A 460–461 335.

DOI: 10.1016/j.msea.2007.01.054

[9] Rasouli D, Khameneh Asl Sh, Akbarzadeh A and Daneshi G H 2008 J. Mater. Process. Technol. 206 92.

[10] Olasolo M, Uranga P, Rodriguez-Ibabe J M and López B 2011 Mater. Sci. Eng. A 528 2559.

[11] Zheng D S, Zhu F X, Li Y M and Chen B Z 2011 J. Iron Steel Res. Int. 18 46.

[12] Bu F Z, Wang X M, Chen L, Yang S W, Shang C J and Misra R D K 2015 Mater. Charact. 102 146.

[13] Wei H L, Liu G Q, Zhao H T and Zhang M H 2014 Mater. Sci. Eng. A 596 112.

[14] Chang W L, Seong H G and Cooman B C D 2016 Metall. Mater. Trans. A 47 1.

[15] Hui W J, Zhang Y J, Shao C W, Chen S L, Zhao X L and Dong H 2016 J. Mater. Sci. Technol. 32 545.

[16] Gladman T 1999 Mater Sci Technol. 15 30.