The Paton Welding Journal, 2008, №09

2008 №09 (02)

2008 №09 (04)

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The Paton Welding Journal, 2008, #9, 10-13 pages

Influence of oxide film macroinclusions on the strength of welds in plate joints of AMg6 alloy

A.G. Poklyatsky

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

Abstract
Effect of oxide film macroinclusions on mechanical properties of welds made on aluminium alloy AMg6 6–12 mm thick by TIG welding in argon atmosphere has been investigated. Dependencies of strength of the welds on surface area of such defects escaping to the surface on the side of penetration and located inside the weld have been derived. The relationships can be used to estimate the admissibility of oxide film macroinclusions in the welds in fabrication of welded structures.
Keywords: argon-arc welding, nonconsumable electrode, AMg6 aluminium alloy, oxide film macroinclusions, ultimate tensile strength, defect length

References

1. Mashin, V.S., Poklyatsky, A.G., Fedorchuk, V.E. (2005) Mechanical properties of aluminium alloys in consumable and nonconsumable electrode arc welding. The Paton Welding J., 9, 39–45.
2. Rabkin, D.M. (1986) Metallurgy of fusion welding of aluminium and its alloys. Kiev: Naukova Dumka.
3. Poklyatsky, A.G. (2001) Peculiarities of formation of macroinclusions of oxide film in weld metal of aluminium alloys (Review). The Paton Welding J., 3, 36–38.
4. Voropaj, N.M., Manzhelej, G.P. (1969) Detection of oxide inclusions in welds of aluminium alloys. Avtomatich. Svarka, 3, 71–72.
5. Makarov, I.I., Volynsky, V.N., Prokhorov, N.N. (1976) Influence of pores and oxide inclusions on strength of AMg6 alloy welded joints. Ibid., 4, 27–30.
6. Ishchenko, A.Ya., Poklyatsky, A.G., Yavorskaya, M.R. (1989) Prevention of oxide film inclusions in argon arc welds of aluminium alloys. Ibid., 6, 38–41.

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Suggested Citation

A.G. Poklyatsky (2008) Influence of oxide film macroinclusions on the strength of welds in plate joints of AMg6 alloy. The Paton Welding J., 09, 10-13.

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