Exposure tests in natural atmospheres are an indispensable means for determining the behaviour and durability of metallic materials in the atmosphere. The corrosion behaviour of bare aluminium and anodised aluminium with three different coating thicknesses has been evaluated for two years' exposure in two natural atmospheres of very different corrosivities: one urban and the other marine. Sever...

Precipitation behaviour of wrought Al-6Mg alloys with ternary scandium and quaternary zirconium and titanium has been studied. Hardness measurements and resistivity studies are employed to assess the precipitation behaviour of scandium doped Al-6Mg alloy without or with quaternary additions of zirconium and titanium. Further, the kinetics of precipitations are studied by differential scanning c...

Pure beryllium (Be) is a hard grey metal, the lightest of all metals, and can be found in mineral rocks, coal, soil, and volcanic dust and natural waters. It is lighter than aluminium yet three times as strong as steel. Beryllium compounds are commercially mined, and refined beryllium is used in a wide range of manufactured products and industries including ceramics, mirrors, special metal allo...

L. Blacha, A. Smalcerz Silesian University of Technology, Faculty of Materials Engineering and Matallurgy, Katowice, Poland K. Michalek Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Ostrava, Czech Republic M. Warzecha University of Częstochowa, Faculty of Materials Processing Technology and Applied Physics, Częstochowa, Poland In the paper, results of a kinet...

The Al-V alloys were synthetized by potentiostatic electrodeposition onto a glassy carbon electrode from equimolar AlCl3 + NaCl bath containing vanadium ions at 200 °C. alloy deposits characterized X-ray diffraction, scanning electron microscopy, and energy dispersive spectroscopy. identified as Al3V AlV3 alloys. It was found that intermetallic during aluminium underpotential deposition metal p...

Soft X-ray band-emission data for solid binary solutions are reviewed, with particular reference to aluminium alloys, and their interpretation is discussed in relation to the rigid-band and virtual-bound-state models. The emission spectra only rarely support the rigid-band model. Measurements on alloys of the noble and transition metals with aluminium are interpreted in terms of virtual-bound o...

High strength aluminium alloys are widely employed in aerospace applications. However specific environmental conditions may trigger corrosion and therefore these alloys require additional protection. Most current conversion coatings used for this purpose are Cr(VI) based, and thus environmentally undesirable. A possible replacement is a Ti based coating, Nabutan STI/310. The aim of this work is...