The Paton Welding Journal, 2008, №05

2008 №05 (01)

2008 №05 (03)

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The Paton Welding Journal, 2008, #5, 7-12 pages

Improvement of delayed cracking resistance of welded joints of cast hardenable steels

V.D. Poznyakov

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

Abstract
Results of evaluation of delayed fracture resistance of the HAZ metal in welded joints on cast steel of 35L type depending on weld saturation with diffusible hydrogen, welding heat input and preheating temperature, are given. Data on the influence of welding technique on formation of the stressed state of rigidly fixed joints of heavy metal sections are presented.
Keywords: cast carbon steel, cold cracks, preheating, diffusible hydrogen, welding stresses, welding technology, restoration of metal structures

References

1. Maccocaire, C. (1991) Repair welding: how to set up a shop. Welding J., 8, 54–56.
2. Ye Dong-lin, Yongfu He, Rangez Zhang et al. (1982) A study on cracks on the oxygas cut surfaces of weld grooves of 14MnMoVN steel plates during cold forming. Transact. of China Welding Inst., 4, 159–164.
3. Larionov, V.P. (1986) Electric arc welding of structures in northern version. Novosibirsk: Nauka.
4. Volkov, A.S. (1974) Causes of appearance of defects near the repaired zones of welds. Svarochn. Proizvodstvo, 8, 33–34.
5. Irving, R.R. (1980) Can industry afford the high cost of weld repair? Iron Age, 3, 49–55.
6. Makarov, E.L. (1981) Cold cracks in welding of alloy steels. Moscow: Mashinostroenie.
7. Shorshorov, M.Kh., Belov, V.V. (1972) Phase transformations and change of properties of steel in welding: Atlas. Moscow: Nauka.
8. Korolkov, P.M., Dikun, V.N. (1993) Influence of technological welding processes and volume heat treatment on welding stress level in spherical vessels for liquid ammonia. Montazh i Spets. Raboty v Stroitelstve, 8, 24–26.
9. Vinokurov, V.A., Grigoriantz, A.G. (1984) Theory of welding strains and stresses. Moscow: Mashinostroenie.
10. Trochun, I.P. (1964) Internal forces and deformations in welding. Moscow: Mashgiz.
11. Berezhnytska, M.P. (2001) Methods of determination of residual stresses and their relaxation. Fizyko-Khim. Mekhanika Materialiv, 6, 69–74.
12. Makhnenko, V.I. (1976) Computational methods for investigation of kinetics of welding stresses and strains. Kiev: Naukova Dumka.
13. Pokhodnya, I.K., Paltsevich, A.P. (1980) Chromatographic method for determination of diffusion hydrogen in welds. Avtomatich. Svarka, 1, 37–39.
14. Musiyachenko, V.F., Zhdanov, S.L. (1987) Application of acoustic emission method for investigation of cold cracking process in high-strength steel welded joint. Diagnostika i Prognoz. Razrusheniya Sv. Konstruktsij, Issue 5, 73–77.
15. Lazko, V.E., Borisov, M.T., Kovalchuk, V.D. et al. (1977) Effect of cerium on delayed fracture of high-strength weld metal. Avtomatich. Svarka, 2, 27–29.
16. Sarak, V.I., Suvorova, S.O., Filippov, G.A. (1974) About internal microstresses resulting from martensite transformation in steel. Metallofizika, 54, 94–97.

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Suggested Citation

V.D. Poznyakov (2008) Improvement of delayed cracking resistance of welded joints of cast hardenable steels. The Paton Welding J., 05, 7-12.

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