publication . Article . 2009

THE INFLUENCE OF POSTHEAT TREATMENT ON FERRITE REDISTRIBUTION IN DUPLEX STEELS ELECTRON BEAM WELDS

Zita Iždinská; František Kolenič;
Open Access English
  • Published: 01 Apr 2009 Journal: Materiálové Inžinierstvo, volume 16, issue 1, pages 1-8 (issn: 1335-0803, eissn: 1338-6174, Copyright policy)
  • Publisher: Univerzity of Zilina. Faculty of Mechanical Engineering
Abstract
The duplex stainless steel is two-phase steel with the structure composed of austenite and ferrite with optimum austenite/ferrite proportion 50%. At present, classical arc processes for welding duplex steels are generally regarded as acceptable. On the other hand electron and laser beam welding is up to now considered less suitable for welding duplex steels. The submitted work presents the results of testing various thermal conditions at welding duplex stainless steel with electron beam. It was shown, that application of suitable postheat made possible to reduce the ferrite content in weld metal.
Subjects
free text keywords: Duplex stainless steel, Electron beam welding ferrite, Austenite, Postweld heat treatment, lcsh:Materials of engineering and construction. Mechanics of materials, lcsh:TA401-492
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[1] Křeček, I.: Duplexní korozivzdorné oceli, metalurgie a jejich svařovaní (Duplex stainless steels, metallurgy and their welding), Zvárač, Prvá zváračská (First Welding Company), Volume1, No.1 2004, pp. 8-13.

[2] Cvijivic, Z. et al.: Effect of welding process on the microstructure of duplex stainless steel. In.: Proceedings of Japan-Slovak Symposium Welding Science and Technology, Tatranská Lomnica, 1996, pp.109-114.

[3] Ku, J. S. - Ho, N. J.- Tjong, S. C.: Properties of electron beam welded SAF 2205 duplex stainless steel, Journal of Materials Processing Technology, 63, 1997, pp. 770-775. [OpenAIRE]

[4] Lippold, J. C. Kotecki J. D.: Welding metallurgy and weldability of stainless steels. Wiley Iinterscience publication, 2005.

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