The Paton Welding Journal, 2007, №02

2007 №02 (02)

2007 №02 (04)

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The Paton Welding Journal, 2007, #2, 9-15 pages

Nature of fracture of B96 alloy depending on heating conditions in welding

T.M. Labur, T.G. Taranova, V.A. Kostin, A.Ya. Ishchenko, G.M. Grigorenko, A.A. Chajka

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
Fracture surface relief peculiarities of samples cut out from different segments of the HAZ of weldedjoints in high-strength aluminium alloy B96 were studied by fractography analysis method. General laws of crack initiation and propagation at eccentric tension were determined. The reasons for initiation of centers of crack concentration and microcrack formation on grain boundaries were established.
Keywords: fractographic analysis, high-strength aluminium alloy, thermophysical conditions of welding, failure mode, fracture relief, avalanche crack

References

1. Ishchenko, A.Ya., Sklabinskaya, I.E. (1979) Specifics of transformations in heat-affected zone during welding of some high-strength aluminium alloys. Avtomatich. Svarka, 5, 26–29.
2. Rabkin, D.M. (1986) Metallurgy of fusion welding of aluminium and its alloys. Kiev: Naukova Dumka.
3. Labur, T.M., Ishchenko, A.Ya., Taranova, T.G. et al. (2005) Features of crack initiation and propagation under the conditions of off-center tension of 1441 Al–Li alloy welded Joints. The Paton Welding J., 11, 6–10.

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Suggested Citation

T.M. Labur, T.G. Taranova, V.A. Kostin, A.Ya. Ishchenko, G.M. Grigorenko, A.A. Chajka (2007) Nature of fracture of B96 alloy depending on heating conditions in welding. The Paton Welding J., 02, 9-15.

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