The Paton Welding Journal, 2011, №06



2011 №06 (01)

2011 №06 (03)

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The Paton Welding Journal, 2011, #6, 6-8 pages  

FORECASTING THE CONTENT OF σ-PHASE IN THE HAZ OF WELDED JOINTS OF DUPLEX STEELS IN ARC WELDING

V.I. MAKHNENKO, S.S. KOZLITINA and L.I. DZYUBAK

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Numerical algorithm is suggested for calculation of the content of s -phase in HAZ metal of multipass butt-welded joints on duplex steel DSS 2205. Experimental temperature-time diagrams of formation of s-phase under isothermal conditions at different temperatures are used in combination with thermal cycles of points of welded joint HAZ.
 
 
Keywords: arc welding, duplex steels, butt joints, heat-affected zone, s-phase, temperature-time diagram
 
 
Received:                ??.??.??
Published:               28.06.11
 
 
References
1. Palmer, T.A., Elmer, J.W., Wonq, J. (2002) In-site observations of ferrite-austenite transformations in duplex stainless steel weldments using synchrotron radiation. Sci. and Techn. of Welding and Joining, 7(3), 159-171.
2. (1998) Welding Handbook. Vol. 4: Materials and Applications. Pt 2. Miami: AWS.
3. Elmer, J.W., Palmer, T.A., Specht, E.D. (2002) Synchrotron based observations of sigma phase formation and dissolution in duplex stainless steel. In: Mathematical modelling of weld phenomena. Ed. by H. Cerjak. London: Maney Publ.