The Paton Welding Journal, 2007, №11

2007 №11 (06)

2007 №11 (08)

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The Paton Welding Journal, 2007, #11, 31-33 pages

Extension of service life of metal structures from low-alloy steels by high-frequency mechanical peening after repair welding

V.V. Knysh, V.S. Kovalchuk

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

Abstract
To extend the life time of metal structures in repair welding using the standard technology, it is recommended to treat the fusion zone between the repair weld and base metal by high-frequency mechanical peening (HFMP). HFMP strengthening of the welded joints on steel 09G2S in as-welded condition and after repair welding provides a 3–5 times increase of their cyclic life in single-frequency zero-to-tension axial stress cycle.
Keywords: repair welding, welded joints, steel, high-frequency mechanical peening, service life extension

References

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Suggested Citation

V.V. Knysh, V.S. Kovalchuk (2007) Extension of service life of metal structures from low-alloy steels by high-frequency mechanical peening after repair welding. The Paton Welding J., 11, 31-33.

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