The Paton Welding Journal, 2001, №03

2001 №03 (07)

2001 №03 (09)

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The Paton Welding Journal, 2001, #3, 36-38 pages

Peculiarities of formation of macroinclusions of oxide film in weld metal of aluminium alloys (Review)

A.G. Poklyatsky

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

Abstract
The effect of quality of manufacture and preparation of materials to be welded and a filler wire and also conditions of assembly and welding of joints on the appearance of macroinclusions of an oxide film in the weld metal during welding advanced aluminium alloys is considered. The regularities of formation and location of defects in weld section depending on the causes of their initiation are described. The conditions which contribute to the oxidizing processes and reduce the effectiveness of the cathode destroying of the oxide film in the zone of welding are analyzed. Peculiarities of formation of thread-like longitudinal inclusions of oxide film in the weld central part during welding Li-containing alloys are defined.
Keywords: argon-arc welding, high-strength Li-containing alloys, aluminium alloys, macroinclusions of oxide film, thread-like longitudinal oxide inclusions

References

1. Moiseenko, I.G., Stolbov, V.I., Turchenko, M.A. (1968) Oxide inclusions in welding alloy AMg6. Svarochnoye Pro- izvodstvo, 5, 23 - 24.
2. Moiseenko, I.G., Lukashin, N.V. (1969) About the problem of improving the leak-tightness of AMg6 alloy welded ves¬sels. Ibid., 8, 31 - 32.
3. Lukianov, V.F., Fomin, V.N., Moiseenko, V.P. et al. (1970) Effect of oxide inclusions on strength of welded joints of AMg6 alloy pressure vessels. Ibid., 6, 24
4. Erofeeva, M.M., Bykov, V.V., Konkevich, V.Yu. et al. (1989) Evaluation of feasibility of using granulated alloy of Al-Zn-Mg sustem in welded prefabrications. Ibid., 8, 19 - 20.
5. Kryukovsky, V.N., Novikov, O.M., Meshkova, O.V. et al. (1970) Dicontinuities in weld of AMg6 alloy in presence of oxide inclusions. Ibid., 12, 25 - 27.
6. Oboturov, V.I., Tolkachev, Yu.I. (1973) Some peculiarities of formation and destroying of oxide films in argon-arc welding of aluminium allovs. Ibid., 11, 22 - 24.
7. Stolbov, V.I., Moiseenko, I.G., Lukashin, N.V. (1969) Effect of some technological factors on formation of oxide inclusions in AMg6 alloy welding. Ibid., 3, 26 - 28.
8. Terentiev, I.M., Barutkin, F.E., Konovalov, G.S. (1965) Effect of conditions of aluminium alloy welding on weld metal density. Ibid., 10, 16 - 18.
9. Terentiev, I.M., Slyusarevsky, V.V., Kalinichenko, B.G. et al. (1971) Effect of technological parameters of quality of weld metal of AMg6 alloy welded joints. Ibid., 4, 36 - 37.
10. Sushkov, V.N., Skachkov, Yu.N., Novikov, O.M. et al. (1975) Susceptibility of light alloys to the formation of oxide inclusions in welding. Ibid., S, 23 - 24.
11. Skachkov, Yu.N., Novikov, O.M., Mamon, M.D. (1973) Causes of appearance of oxide films on AMg6 allov welds. Ibid., 4, 27 -29.
12. Yusufova, Z.A. (1979) About the mechanism of destroying of oxide films in butt during argon-arc welding of aluminium allovs. Ibid., 10, 25 - 26.
13. Skachkov, Yu.N., Mamaev, A.A., Novikov, O.M. (1974) Improvement of quality of AMg6 alloy welds. Ibid., 2, 44.
14. Sushkov, V.N., Kryukovsky, V.N., Zhandarev, A.P. et al. (1976) Effect of some parameters of atmosphere of welding shop on the quality of aluminium allov welds. Ibid., 6,27 – 29.

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Suggested Citation

A.G. Poklyatsky (2001) Peculiarities of formation of macroinclusions of oxide film in weld metal of aluminium alloys (Review). The Paton Welding J., 03, 36-38.

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