Corrosion of Aircraft Structures Made of Aluminum Alloys

We analyze corrosion damages of the airframe load-bearing unit, made of aluminum alloys, of Antonov airplanes for 20–40 year of operation. We describe some examples of corrosion manifestations, its kinds, and ways of removal. The applicability of a series of aluminum alloys in Antonov airplanes is considered with regard for the influence of corrosion factor.     

Fatigue fracture of welded specimens made of T110 alloy

Fatigue tests of welded specimens made of experimental T110 titanium alloy have shown that joints made by electron-beam welding possess the highest endurance under cyclic loading. They have a small zone of thermal influence and finer grain sizes than after argon-arc welding.Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 40, No. 4, pp. 89–91, July–August, 2004.     

Structure,strength, and plasticity of semifinished products of VT22 titanium alloy

It is shown that the mechanical properties and structure of semifinished products of VT22 alloy are formed in the stage of hot deformation and depend on the kinetics and morphology of formation of the structure. It is shown that the α-edge and α-precipitates affect the properties of semifinished products of VT22 alloy, especially in the case of massive products, which means that the indicated structural inhomogeneities should be regulated by the technical specifications for supply and inspection. Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 44, No. 3, pp. 85–88, May–June, 2008.