The Paton Welding Journal, 2004, №08

2004 №08 (08)

2004 №08 (10)

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The Paton Welding Journal, 2004, #8, 39-43 pages

Influence of welding speed, duration of periodical cooling on structure formation in welded joints of hardening steels in arc welding with thermal cycling

A.M. Savitsky, M.M. Savitsky, D.P. Novikova

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

Abstract
Proceeding from analysis of the relationship between the heating and cooling conditions of welded joints it is shown that the main welding parameters upon which the efficiency of thermal cycling depends, are welding speed and pause duration. These parameters determine the heating rate, number of heating and cooling cycles and thermal cycling interval, which, in turn, determine the kinetics of structural transformations in heating and cooling of a welded joint.
Keywords: arc welding, hardening steels, thermal power, thermal cycling, structure

References

1. Makara, A.M., Gotalsky, Yu.N. (1955) Investigation of thermal cycle of near-weld zone during electroslag welding in connection with the problem of welding of hardenable steels. Avtomatich. Svarka, 5, 25–32.
2. Makara, A.M., Malevsky, Yu.B. (1954) Peculiarities of decomposition of supercooled austenite in 30KhGSA steel during thermal cycle of near-weld zone. Ibid., 6, 3–18.
3. Kasatkin, B.S., Musiyachenko, V.F., Vasiliev, V.G. et al. (1972) Optimum thermal cycles of steels 14Kh2GMR and 14KhMNDFR. Ibid., 4, 14–17.
4. Kasatkin, B.S., Volkov, V.V. (1977) Influence of sub¬sequent heating on crack resistance of 14Kh2GMR steel welded joints. Ibid., 12, 39–41.
5. Kasatkin, B.S., Musiyachenko, V.F., Mikhoduj, L.I. et al. (1977) Welding of low alloy heat-resistant steels 14Kh2GMR and 14KhMNDFR. Ibid., 6, 39–42.
6. Dudko, D.A., Savitsky, A.M., Vasiliev, V.G. et al. (1996) Peculiarities of structure and properties in welded joints formed with thermocycling. Ibid., 2, 6–7.
7. Dudko, D.A., Savitsky, A.M., Savitsky, M.M. et al. (1998) Peculiarities of thermal processes in welding with thermocy¬cling. Ibid., 4, 8–12.
8. 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.

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Suggested Citation

A.M. Savitsky, M.M. Savitsky, D.P. Novikova (2004) Influence of welding speed, duration of periodical cooling on structure formation in welded joints of hardening steels in arc welding with thermal cycling. The Paton Welding J., 08, 39-43.

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