The Paton Welding Journal, 2008, №04

2008 №04 (09)

2008 №04 (02)

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The Paton Welding Journal, 2008, #4, 2-4 pages

Corrosion fatigue resistance of welded joints strengthened by high-frequency mechanical peening

V.V. Knysh, I.I. Valteris, A.Z. Kuzmenko, S.A. Solovej

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

Abstract
The paper gives the results of investigation of the influence of corrosive environment on lowering of fatigue resistance of tee welded joints on 10KhSND steel unstrengthened and strengthened by high-frequency mechanical peening (HFMP). The high effectiveness of application of HFMP technology as a method of surface plastic deformation of metal near the areas of fatigue damage localization to improve corrosion fatigue was established experimentally. Application of HFMP technology improves the cyclic fatigue life of tee welded joints in a corrosive environment 3.5 times and endurance limit by 80 %.
Keywords: arc welding, metal structures, welded joints, corrosive environment, cyclic load, high-frequency mechanical peening, fatigue life improvement

References

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9. Prokopenko, G.I., Knysh, V.V., Kuzmenko, A.Z. et al. (2005) Structure of welded joint transition zone of ordinary carbon steel after high-frequency mechanical peening. In: Abstr. of Int. Sci. –Techn. Conf. on Dynamics, Strength and Service Life of Machines and Structures (Kiev), Vol. 2, 288–289.

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Suggested Citation

V.V. Knysh, I.I. Valteris, A.Z. Kuzmenko, S.A. Solovej (2008) Corrosion fatigue resistance of welded joints strengthened by high-frequency mechanical peening. The Paton Welding J., 04, 2-4.

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