The increase of weight efficiency and flight-technical characteristics of the aircraft engineering is presently the actual task, requiring the constant search for new materials. The aluminum alloys low density (< 2500 kg/m ) based on Al-Mg-Li system developed allowed to solve the problem of creating the pressurized sections of the aircraft airframe, where the basic semiproduct are die forgings of the Al-alloy 1420, containing 5,1 Mg, 1,9 Cr, 0,1 Zr and 0,1 Sc. The tensile mechanical properties, low cycle fatigue at axial loading (LCF), the critical stress intensity factor under plain strain (K1C), fatigue crack growth (FCGR) were determined in forgings of 1420 alloy and its weldments.
The die forgings of high corrosion resistance, wieldable, super light 1420 aluminum alloy
Mechanische Eigenschaften einschließlich der Ermüdungsfestigkeit und Bruchzähigkeit von Gesenkschmiedestücken und Schweißverbindungen der superleichten AlMgZrSc-Legierung 1420 für den Flugzeugbau
2006
5 Seiten, 5 Bilder, 4 Tabellen, 4 Quellen
Aufsatz (Konferenz)
Englisch
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