1. Z. Ying-qiao, Z. Han-qian, L. Iin-fu, and L. Wei-ruing, “Effect of heat input on microstructure and toughness of coarse grain heat affected zone in Nbmicroalloyed HSLA steels,” J. Iron Steel Res. Int. 16, No. 5, 73–80 (2009).
2. I. Yu. Utkin, D. P. Uskov, I. I. Frantov, A. M. Longinov, A. V. Mozgovoi, and D. V. Domov, “Mastering a new composition of steel alloying for the production of line pipes of strength classes K52–K55,” Metallurg, No. 11, 105–109 (2015).
3. J. R. Procario and T. Melfi, “Weld metal alloy systems for seam welding of niobium micro–alloyed pipe steels,” Proc. Int. Seminar on Welding of High Strength Pipeline Steels (Araxa, 2011), pp. 110–121.
4. Y. T. Chen, A. M. Guo, L. X. Wu, J. Zeng, and P. H. Li, “Microstructure and mechanical property development in the simulated heat affected zone of V treated HSLA steels,” Acta Metall. Sin. 19, No. 1, 57–67 (2006).
5. P. P. Stepanov, V. N. Zikeev, L. I. Efron, I. I. Frantov, and Yu. D. Morozov, “Improving the weldability for large diameter thick-walled gas pipes by optimizing the chemical composition,” Metallurg, No. 11, 62–67 (2010).