The Paton Welding Journal, 2005, №01

2005 №01 (03)

2005 №01 (05)

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The Paton Welding Journal, 2005, #1, 15-17 pages

Influence of the heating stage on structure formation of welded joints on hardening steels

A.M. Savitsky, V.G. Vasiliev, M.M. Savitsky, V.N. Vashchenko

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

Abstract
Studies have proved that formation of structure of a welded joint on high-strength steels starts at the stage of its heating at temperatures above Ac3, while at the cooling stage this process ends in overcooled austenite transformation. The main factor determining the role of the heating stage in formation of metal structure is the rate of heating of the welded joint, which is responsible for temperature Ac3.
Keywords: arc welding, hardening steels, welded joints, structure formation, kinetics, thermal cycle, heating rate, cooling

References

1. Gridnev, V.N., Meshkov, Yu.Ya., Oshkaderov, S.P. et al. (1973) Physical principles of electrothermal strengthening of steel. Kiev: Naukova Dumka.
2. Shorshorov, M.Kh., Belov, V.V. (1972) Phase transformations and changes of steel properties in welding. Moscow: Nauka.
3. Savitsky, A.M., Savitsky, M.M., Dudko, D.A. (2000) Effect of welding parameters on the rate of heating of the weld zone metal. The Paton Welding J., 11, 22–25.
4. Savitsky, M.M., Leskov, G.I. (1980) Mechanism of effect of electronegative elements on penetration capability of the arc with tungsten cathode. Avtomatich. Svarka, 9, 17–22.
5. Savitsky, M.M., Melnichuk, G.M., Karida, V.L. et al. (1981) Application of activating flux in welding of position butts of pipelines in mounting of nuclear stations. Ibid., 11, 71–72.
6. Rykalin, N.N., Pugin, A.I. (1959) Thermal processes in fusion welding. Moscow: Profizdat.

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Suggested Citation

A.M. Savitsky, V.G. Vasiliev, M.M. Savitsky, V.N. Vashchenko (2005) Influence of the heating stage on structure formation of welded joints on hardening steels. The Paton Welding J., 01, 15-17.

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