Effect of Laser Beam Welding on the Microstructure of Duplex Stainless Steels

Article Preview

Abstract:

This study addressed the evolution of microstructure across some duplex stainless steel joints welded by laser beam without and with applying additional materials. The chemical composition and the thickness of the parent material modify the welded joints profile also. Similar technological parameter results different macrostructure and ferrite content at different type of additional material. Pitting corrosion resistance were also studied.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

245-250

Citation:

Online since:

February 2017

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2017 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] J. Nilsson: Super duplex stainless steels. Materials Science and Technology. V. 8. pp.685-700. (1992).

DOI: 10.1179/mst.1992.8.8.685

Google Scholar

[2] J.O. Nilsson, A. Wilson: Influence of isothermal phase transformations on toughness and pitting corrosion of duplex stainless steel SAF 2507. Materials Science and Technology. V. 9. pp.545-554. (1993).

DOI: 10.1179/mst.1993.9.7.545

Google Scholar

[3] J. Nilsson; P. Kangas; T. Karlsson; A. Wilson: A. Mechanical properties, microstructural stability and kinetics of σ phase formation in 29Cr-6Ni-2Mo-0. 38N super duplex stainless steel. Metallurgical and Materials Transactions A. v. 31. pp.35-40. (2000).

DOI: 10.1007/s11661-000-0050-1

Google Scholar

[4] L. Karlsson; L Ryen; S. Pak: Precipitation of intermetallic phases in 22% Cr duplex stainless weld metals. Welding Journal. v. 74. pp.28-40. (1995).

DOI: 10.1080/09507119509548850

Google Scholar

[5] E. Westin; A. Fellman: Effect of laser and laser hybrid welding on the corrosion performance of a lean duplex stainless steel. Journal of Laser Applications. v. 22. n. 4. pp.150-158. (2010).

DOI: 10.2351/1.3533146

Google Scholar

[6] J. C. Lippold and D. J. Kotecki: Welding Metallurgy and Weldability of Stainless steels. 2005. Wiley, NewJersey. 357 pp.

Google Scholar

[7] J. M. G. Salazar, A. Soria, M. I. Barrena: The effect of N2 addition upon the MIG welding process of duplex steels. Journal of Materials Science, 2007 v. 42 ISS. 13, pp.4892-4898.

DOI: 10.1007/s10853-006-0557-y

Google Scholar

[8] P.S. Mohanty & J. Mazumder: Solidification Behaviour and Microstructural Evolution during Laser Beam– Material Interaction. Metallurgical and materials transactions B, December 1998, Vol. 29B, pp.1269-1279.

DOI: 10.1007/s11663-998-0050-x

Google Scholar

[9] J. Pekkarinen.; V. Kujanpӓӓ: The effects of laser welding parameters on the microstructure of ferritic and duplex stainless steels welds. Physics Procedia. v. 5. pp.517-523. (2010).

DOI: 10.1016/j.phpro.2010.08.175

Google Scholar

[10] N. Mcpherson; H. Samson; T. Baker S. Fernandez: Steel microstructures in autogenous laser welds. Journal of Laser Applications. v. 15. pp.200-211. (2000).

DOI: 10.2351/1.1619997

Google Scholar

[11] CO Pettersson, S-Å Fager: Welding practice for the Sandvik duplex stainless steels SAF 2304, AF 2205 and SAF 2507; AB Sandvik Steel, S-811 81 Sandviken, Sweden, (1995).

Google Scholar

[12] A. M El-Batahgy, A.F. Khourshid, T Sharef: Effect of Laser Beam Welding Parameters on Microstructure and Properties of Duplex Stainless Steel, Materials Sciences and Applications, 2011, 2, 1443-1451.

DOI: 10.4236/msa.2011.210195

Google Scholar