The Paton Welding Journal, 2007, №03

2007 №03 (09)

2007 №03 (11)

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The Paton Welding Journal, 2007, #3, 37-39 pages

Method for increasing cyclic and service life of welded steel structures

V.S. Kovalchuk, V.V. Knysh, V.D. Poznyakov, S.B. Kasatkin

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

Abstract
A method for increasing fatigue resistance of welded Joints of plate steel in initial state and after repair welding of remote fatigue cracks according to standard technology, using recommended consumables with subsequent facing of the welds by austenite-martensite wire Kh10N10 that induces favorable residual compressive stresses, is suggested. It is determined that cyclic life of welded Joints in steel 09G2S, made and repaired according to the suggested technology, increases 5-7 times in comparison with that achieved in case of using standard technology.
Keywords: cyclic life, welded joints, facing welds, residual compressive stresses

References

1. Mirolyubov, Yu.P., Panin, E.I., Frolov, V.V. et al. (1983) Fatigue cracks in welded continuous wall spans. In: Problems of design and service of artificial buildings. Leningrad: LIIZhT.
2. Ohta, A., Suzuki, N., Maeda, Y. (1996) Effective means for improving the fatigue strength of welded structures. Welding in the World, 37, 84–89.
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5. Mazel, Yu.A. (2002) 10 % Cr–10 % Ni martensitic welding wires with a low temperature of the  transformation. Svarochn. Proizvodstvo, 49(12), 10–13.

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Suggested Citation

V.S. Kovalchuk, V.V. Knysh, V.D. Poznyakov, S.B. Kasatkin (2007) Method for increasing cyclic and service life of welded steel structures. The Paton Welding J., 03, 37-39.

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