Two High Strength Low Alloy Steels for Offshore Application

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Abstract:

The purpose of this investigation is focused on two high strength low alloy steels for offshore application. TTT, CCT curves, Vickers depth profiles and microstructures of direct water quenched steels are evaluated in the experiment. Microhardness of the direct quenched surface is as high as 400 Hv, and the central region hardness of water quenched specimen is above 250 Hv. Martensite dominates the microstructure of quenched surface. In contrast, the mixture of martensite, bainite and ferrite is widely observed from the center of quenched specimen.

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1312-1316

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] B. K. Show, R. Veerababu, R. Balamuralikrishnan, G. Malakondaiah, Effect of vanadium and titanium modification on the microstructure and mechanical properties of a microalloyed HSLA steel, Mater. Sci. Eng. A 527 (6) (2010) 1595-1604.

DOI: 10.1016/j.msea.2009.10.049

Google Scholar

[2] J. Fernández, S. Illescas, J. M. Guilemany, Effect of microalloying elements on the austenitic grain growth in a low carbon HSLA steel, Mater. Lett. 61 (11-12) (2007) 2389-2392.

DOI: 10.1016/j.matlet.2006.09.021

Google Scholar

[3] Z. Wang, X. Mao, Z. Yang, X. Sun, Q. Yong, Z. Li, Y. Weng, Strain-induced precipitation in a Ti micro-alloyed HSLA steel, Mater. Sci. Eng. A 529 (2011) 459-467.

DOI: 10.1016/j.msea.2011.09.062

Google Scholar

[4] M. Kapsali, J.K. Kaldellis, Offshore Wind Power Basics, Technological Education Institute of Piraeus, Athens, Greece, (2012).

Google Scholar

[5] NORSOK Standfard, Material data sheets for structural steel, Norway Technology Center, N-0306 Oslo, Norway, (2000).

Google Scholar