Abstract
Simulated microstructures of the TZ, ICHAZ, FGHAZ, and CGHAZ of weld joints made from two kinds of HSLA steels with 0 or 0.079 wt pct Nb were prepared by means of heat treatment. Optical microscopy and transmission electron microscopy were used to observe microstructures and the distribution of nanosized precipitates in the simulated weld heat-affected zone (HAZ). Mechanical properties of the simulated HAZ were measured by tensile tests, and the corrosion behavior in simulated seawater was studied using electrochemical and immersion tests. It was shown that the ICHAZ and CGHAZ possess the worst overall mechanical properties in both kinds of HSLA steels, and the corrosion resistance in the descending order was the BM, TZ, FGHAZ, ICHAZ, and CGHAZ. Contrasting Nb-bearing and Nb-free steel demonstrated that the strength and corrosion resistance of the simulated HAZ were enhanced by Nb microalloying, which resulted in precipitation, homogeneous microstructures, and other relative sequences. Moreover, the surface of the Nb-bearing steel formed compact corrosion product films with higher resistance to ion migration; thus, the initiation and propagation of pitting holes were effectively inhibited.
Similar content being viewed by others
References
L.F. Sun, F.M. Wang, and B. Yan: Heat Treat. Metals, 2013, vol. 11, pp. 14-17.
B.K. Show, R. Veerababu, R. Balamuralikrishnan, and G. Malakondaiah: Mater. Sci. Eng. A, 2010, vol. 527, pp. 1595-1604.
SL Jeng, HT Lee, JY Huang, and RC Kuo: Mater. Trans., 2008, vol. 49, pp. 1270-1277.
S. Lu, S. Wei, D. Li, and Y. Li: J. Mater. Sci., 2010, vol. 45, pp. 2390-2402.
Q. Yu, Z. Wang, X. Liu, and G. Wang: Mater. Sci. Eng. A, 2004, vol. 379, pp. 384-390.
SQ Zhang, YH Huang, BT Sun, QL Liao, HZ Lu, B Jian, H Mohrbacher, W Zhang, AM Guo, Y Zhang: Mater. Sci. Eng. A, 2015, vol. 626, pp. 136-143
H.C. Ma, Z.Y. Liu, C.W. Du, H.R. Wang, X.G. Li, D.W. Zhang, and Z.Y. Cui: Corros. Sci., 2015, vol. 100, pp. 627-641.
F. Mohammadi, F.F. Eliyan, and A. Alfantazi: Corros. Sci., 2012, vol. 63, pp. 323-333.
G.A. Zhang, and Y.F. Cheng: Corros. Sci., 2009, vol. 51, pp. 87-94.
G.A. Zhang, and Y.F. Cheng: Electrochem. Acta, 2009, vol. 55, pp. 316-324.
X. Chen, G. Qiao, X. Han, X. Wang, F. Xiao, and B. Liao: Mater. Design, 2014, vol. 53, pp. 888-901.
A.G. Kalashami, A. Kermanpur, E. Ghassemali, A. Najafizadeh, and Y. Mazaheri: Mater. Sci. Eng. A, 2016, vol. 678, pp. 215-226.
P. Zhao, C. Cheng, G. Gao, W. Hui, R.D.K. Misra, B. Bai, and Y. Weng: Mater. Sci. Eng. A, 2015, vol. 650, pp. 438-444.
X.W. Chen, B. Liao, G.Y. Qiao, Y. Gu, X. Wang, and F.R. Xiao: J. Iron Steel Inter., 2013, vol. 20, pp. 53-60.
E. El-Kashif and T. Koseki: Effect of Niobium on HAZ Toughness of HSLA Steels, Alloy Steel - Properties and Use, 2011, InTech publisher, Rijeka
Z.H. Wang, Y.H. Huang, J. Li, L. Yang, and D.H. Xie: J. Chin. Soc. Corr. Protec., 2016, vol. 36, pp. 604-610.
J. Li, J.S. Wu, Z.H. Wang, S.. Zhang, X.G. Wu, Y.H. Huang, and X.G. Li: Int. J. Hydrogen Energ., 2017, vol. 42, pp. 22175-22184
LW Wang, XG Li, CW Du, P Zhang, and YZ Huang: J. Iron Steel Res. Int., 2015, vol. 22, pp. 135-144.
H. Ma, Z. Liu, C. Du, X. Li, and Z. Cui: Mater. Sci. Eng. A, 2016, vol. 650, pp. 93-101.
M. Schumacher: Sea water corrosion handbook, 1979, New Jersey: Park Ridge.
Y. Chen, D. Zhang, Y. Liu, H. Li, and D. Xu: Mater. Charact., 2013, vol. 84, pp. 232-239.
J. Moon, and C. Lee: Acta Mater., 2009, vol. 57, pp. 2311-2320.
M. Zhang, X. Wang, G. Zhu, C. Chen, J. Hou, S. Zhang, and H. Jing: Acta Metall. Sin., 2014, vol. 27, pp. 521-529.
X.N. Wang, C.J. Chen, H.S. Wang, S.H. Zhang, M. Zhang, and X. Luo: J. Mater. Proc. Tech., 2015, vol. 226, pp. 106-114.
J. Zhu, L. Xu, Z. Feng, G.S. Frankel, M. Lu, and W. Chang: Corros. Sci., 2016, vol. 111, pp. 391–403.
Acknowledgments
This work was supported by the National Key Research and Development Program of China (No. 2016YFB0300604), the National Natural Science Foundation of China (No. 51471033), the National Basic Research Program of China (No. 2014CB643300), and the National Environmental Corrosion Platform (NECP).
Author information
Authors and Affiliations
Corresponding author
Additional information
Manuscript submitted April 21, 2017.
Rights and permissions
About this article
Cite this article
Wang, Z., Wu, J., Li, J. et al. Effects of Niobium on the Mechanical Properties and Corrosion Behavior of Simulated Weld HAZ of HSLA Steel. Metall Mater Trans A 49, 187–197 (2018). https://doi.org/10.1007/s11661-017-4391-4
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11661-017-4391-4