The Paton Welding Journal, 2006, №11

2006 №11 (03)

2006 №11 (05)

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The Paton Welding Journal, 2006, #11, 17-21 pages

Influence of structural transformations in welding of aluminium alloy B96 on fracture resistance parameters

T.M. Labur, T.G. Taranova, V.A. Kostin, A.Ya. Ishchenko, G.M. Grigorenko, V.E. Fedorchuk

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

Abstract
The nature of structural transformation occurring in aluminium alloy B96 during heating in welding was studied by scanning electron microscopy. The composition of the phases and their morphological peculiarities were estimated quantitatively and qualitatively, depending on the thermophysical conditions of nonconsumable electrode and electron beam welding. Effect of the volume content of phases on the processes of initiation and propagation of cracks under the conditions of off-centre fracture of samples of welded Joints was evaluated.
Keywords: high-strength aluminium alloy, thermal cycle of fusion welding, heat-affected zone, cooling rate, fracture resistance, microstructure, inclusions, investigations

References

1. Davydov, V.G. (1997) Metals science and technological researches of aluminium-lithium alloys at the current stage. Tekhnologiya Lyog. Splavov, 5, 15–25.
2. Fujiwara, T. (2001) Technologies of joining of light metals in aircraft and space engineering. Keikinzoku Yosetsu, 39(3), 1–11.
3. Kiyoto, S. (1993) Materials and joining technologies for rocket structures. J. JWS, 62(8), 46–52.
4. Ishchenko, A.Ya., Sklabinskaya, I.E. (1979) Peculiarities of transformations in heat-affected zone during welding of some high-strength aluminium alloys. Avtomatich. Svarka, 5, 26–29.
5. Rabkin, D.M. (1986) Metallurgy of fusion welding of aluminium and its alloys. Kiev: Naukova Dumka.
6. (1974) Aluminium alloys. Structure and properties of aluminium-alloy semi-finished products: Refer. Book. Ed. by V.A. Livanov. Moscow: Metallurgiya.
7. (1979) Aluminium alloys (properties, treatment, application): Refer. Book. Ed. by H. Nilsen et al. Moscow: Metallurgiya.
8. Mondolfo, L.F. (1979) Structure and properties of aluminium alloys. Moscow: Metallurgiya.

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Suggested Citation

T.M. Labur, T.G. Taranova, V.A. Kostin, A.Ya. Ishchenko, G.M. Grigorenko, V.E. Fedorchuk (2006) Influence of structural transformations in welding of aluminium alloy B96 on fracture resistance parameters. The Paton Welding J., 11, 17-21.

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