Glass-Forming Ability and Corrosion Resistance of AlYFe (x = 0, 1, 2 at.%) Alloys.

The effect of iron and yttrium additions on glass forming ability and corrosion resistance of AlYFe (x = 0, 1, 2 at.%) alloys in the form of ingots and melt-spun ribbons was investigated. The crystalline multiphase structure of ingots and amorphous-crystalline structure of ribbons were examined by a number of analytical techniques including X-ray diffraction, Mössbauer spectroscopy, and transmission electron microscopy.

Surface Modification of Biomedical MgCa and MgCaGd Alloys by Micro-Arc Oxidation.

The aim of this work was to characterize the structure and corrosion properties of the MgCa(Gd) alloys surface treated by the micro-arc oxidation (MAO) process. The MgCa and MgCaGd alloy samples were processed by MAO in an electrolyte composed of NaOH (10 g/dm), NaF (10 g/dm), NaHPO (5 g/dm), NaSiO·5HO (10 g/dm) and water. Two different voltages (120 V and 140 V) were used in the MAO process.

Structural Characterization of AlCuFe Melt-Spun Alloy by X-ray, Neutron Diffraction, High-Resolution Electron Microscopy and Mössbauer Spectroscopy.

The aim of the work was to characterize the structure of AlCuFe alloy obtained with the use of conventional casting and rapid solidification-melt-spinning technology. Based on the literature data, the possibility of an icosahedral quasicrystalline phase forming in the Al-Cu-Fe was verified. Structure analysis was performed based on the results of X-ray diffraction, neutron diffraction, Fe Mössbauer and transmission electron microscopy.