The Paton Welding Journal, 2005, №10

2005 №10 (12)

2005 №10 (02)

---

The Paton Welding Journal, 2005, #10, 2-8 pages

Nature and features of microdeformation in the zone of crack initiation and propagation in high-strength aluminuim alloy D16AT

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

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

Abstract
Features of microdeformation of individual structural components within the zone of crack initiation and propagation in a high-strength aluminum alloy have been studied. Characteristics of crack initiation and propagation have been determined. It is shown that a proportional relationship exists between the conditions of microdeformation of metal internal structure caused by initial stresses and the resistance to crack propagation.
Keywords: welded structures, high-strength aluminium alloy, welded joint, properties, stresses, microdeformation, structure, fracture, crack initiation and propagation

References

1. Fujiwara, T. (2001) Technology of joining of light metals in aircraft and space engineering. Keikinzoku Yosetsu, 39(3), 1−11.
2. Broek, D. (1980) Principles of fracture mechanics. Moscow: Vysshaya Shkola.
3. Vladimirov, V.I. (1984) Physical nature of fracture of metals. Moscow: Metallurgiya.
4. Botvina, L.R. (1989) Kinetics of fracture of structural materials. Moscow: Nauka.
5. Davidenkov, N.N. (1981) Mechanical properties of materals and methods of deformation measurement. Vol. 2. Kiev: Naukova Dumka.
6. Ivanova, V.S., Botvina, L.R., Kudryashov, V.G. (1971) Strength and plasticity. Fracture under short-term loads. Ductile and brittle fracture. In: Results of science and technology. Series Materials Science and Heat Treatment. Moscow.
7. Kis, J.A., Smith, H.L., Romayi, Kh.E. et al. (1968) Fracture tests of welds. In: Applied problems of fracture toughness. Moscow: Mir.
8. Kishkina, S.I. (1981) Fracture resistance of aluminium alloys. Moscow: Metallurgiya.
9. Klevtsov, G.V. (1993) Kinetics of formation of plastic deformation zones at the crack tip in fracture of structural materials in plane-stressed state and plane deformation conditions. Problemy Prochnosti, 4, 57-63.
10. Neshpor, G.S., Miklyaev, P.G., Andreev, D.A. (1980) On the possibility of unification of the procedure for determination of fracture toughness in plane-stressed state. Zavod. Laboratoriya, 46(3), 261−265.
11. Ivanova, V.S., Kudryashov, V.G., Kopelovich, B.A. et al. (1974) Fractography and fracture toughness of aluminium and titanium alloys. Tekhnologiya Lyog. Splavov, 3, 65−70.
12. (1989) Strength analysis and testing in machine-building, classification kinds of the metal fracture (rupture) surface. Moscow: Standart.
13. Romaniv, O.N. (1981) Structural fracture mechanics as a new prospective trend in the problem of fracture of metals. Fiziko-Khim. Mekh. Materialov, 4, 28-32.

---

Suggested Citation

T.M Labur, A.Ya Ishchenko, T.G Taranova, V.A Kostin, G.M Grigorenko (2005) Nature and features of microdeformation in the zone of crack initiation and propagation in high-strength aluminuim alloy D16AT. The Paton Welding J., 10, 2-8.

---