Effect of Welding Processes with High Heat Input on the Microstructure and Toughness of Coarse-Grained Heat-Affected Zone of a High-Strength High-Toughness Steel

Yu Jie Li; Jin Wei Lei; Xuan Wei Lei; Oleksandr Hress; Kai Ming Wu

doi:10.4028/www.scientific.net/MSF.937.61

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HomeMaterials Science ForumMaterials Science Forum Vol. 937Effect of Welding Processes with High Heat Input...

Effect of Welding Processes with High Heat Input on the Microstructure and Toughness of Coarse-Grained Heat-Affected Zone of a High-Strength High-Toughness Steel

Abstract:

Utilizing submerged arc welding under heat input 50 kJ/cm on 60 mm thick marine engineering structure plate F550, the effect of preheating and post welding heat treatment on the microstructure and impact toughness of coarse-grained heat-affected zone (CGHAZ) has been investigated. The original microstructure of the steel plate is tempered martensite. The yield and tensile strength is 610 and 660 MPa, respectively. The impact absorbed energy at low temperature (-60 °C) at transverse direction reaches about 230~270 J. Welding results show that the preheating at 100 °C did not have obvious influence on the microstructure and toughness; whereas the tempering at 600 °C for 2.5 h after welding could significantly reduce the amount of M-A components in the coarse-grained heat-affected zone and thus improved the low temperature impact toughness.

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Periodical:

Materials Science Forum (Volume 937)

Pages:

61-67

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.937.61

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Online since:

October 2018

Authors:

Yu Jie Li, Jin Wei Lei, Xuan Wei Lei, Oleksandr Hress, Kai Ming Wu*

Keywords:

F550, Heat-Affected Zone, Low Temperature Impact Toughness, Steels, Welding Process

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* - Corresponding Author

References

[1] China Petrochemical Corporation Equipment Design and Technology Center Station, Petroleum chemical industry commonly used domestic and foreign metallic materials manual. Beijing, China Petrochemical Press, 2010, pp.403-404.

Google Scholar

[2] X. B. Du, P. Zhang, Y. Q. Li, et al, Effect of heat treatment process on microstructure and mechanical properties of F550 shipbuilding steel plate, Shandong Metallurgy, vol. 34, no. 3, pp.4-7, June (2012).

Google Scholar

[3] W. Y. Lu, K. M. Wu, H. H. Wang, X. W. Lei, Y. Q. Yin, et al, Weldability of Zr-Ti composite microalloyed high strength and high tenacity structural steel , Journal of Welding, vol.33, no. 8, pp.49-53, August (2012).

Google Scholar

[4] China classification society, Materials and welding specifications, Beijing, 2012, pp.3-34.

Google Scholar

[5] X. X. Xin, H. L. Gao, X. L. Xu, et al, Study on the toughness of the coarse-grained zone welded by the steel for the west pipeline, Welded Pipe and Tube, vol. 19, no. 6, pp.10-19, (1996).

Google Scholar

[6] Z. Y. An, K. M. Wu, W. Y. Lu, et al, Effect of Zr-Ti composite deoxidation on improving impact toughness of large-grain energy welding coarse grain, Journal of Materials and Heat Treatment, vol. 34, no. 7, pp.106-111, (2013).

Google Scholar

[7] X. L. Wan, R. Wei, and K. M. Wu, Effect of acicular ferrite formation on grain refinement in the coarse-grained region of heat-affected zone, Materials Characterization, no. 61, pp.726-31, (2012).

DOI: 10.1016/j.matchar.2010.04.004

Google Scholar

[8] Y. Qian, X. W. Lei, H. H. Wang, et al, Effect of preheating before welding on the performance of the welded joints of X120 ultra high strength pipeline steel, Welding Technology, vol. 41, no. 3, pp.9-11, (2012).

Google Scholar

[9] J. M. Zheng and L. Y. Yang, Welding process of steel thick plate with A48CPR, Welding Technology, vol. 35, no. 3, pp.31-32, (2006).

Google Scholar