The influence of welding thermal cycles on corrosion resistance of duplex stainless steel

• Autorzy: Łabanowski J. , Krzysztofowicz K.
• Języki publikacji: EN

Abstrakty

EN

The susceptibility of heat affected zone (HAZ) of duplex stainless steel weldments to stress corrosion cracking was investigated. Corrosion tests were performed with the use of Slow Strain Rate Test technique in the boiling MgCl2 corrosive environment. It has been shown that high ferrite content in HAZ structure deteriorate its corrosion resistance. The metallographic and scanning electron microscopy (SEM) observations revealed various fracture propagation modes strongly dependent on austenite content in the HAZ structure.

Słowa kluczowe

EN

duplex stainless steel; heat-affected zone; stress corrosion cracking

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2005
• Tom: Vol. 5, nr 1-3
• Strony: 55--61
• Opis fizyczny: Bibliogr. 7 poz., 5 rys., 3 tab.

Twórcy

autor

Łabanowski J.

• Gdańsk University of Technology, Department of Materials Science and Engineering, Gdańsk, Poland

autor

Krzysztofowicz K.

• Gdańsk University of Technology, Department of Materials Science and Engineering, Gdańsk, Poland

Bibliografia

• 1. Nickel, NiDI publication, 1997, 12 (3).
• 2. Charles J., Composition and properties of duplex stainless steels, Welding in the World, 1995, 36.
• 3. Hertzman S., Ferreria P., Brolund B., An experimental and theoretical study of heat –affected- zone austenite reformation in three duplex stainless steels, Metall. Trans. A, 1997, 28A, 277-285.
• 4. Desestert A., Oltra R., The influence of plastic straining on localised and general corrosion of stainless steels, Corrosion Sci., 1980, 20 (6).
• 5. Bernhardsson S., et al., Stress corrosion cracking resistance of duplex stainless steels in chloride environments, Proc. Conf. “Duplex stainless steels”, ASM, St Louis, USA, Oct. 25-28, 1982.
• 6. Gooch T.G., A review of stress corrosion cracking of welded duplex ferritic/austenitic stainless steels, Welding in the World, 1986, 24 (7/8).
• 7. Jones R.H., Stress corrosion cracking, ASM International, Materials Park, Ohio, 1992.