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Fe-based metallic glasses are distinguished by high mechanical strength, good corrosion resistance and reasonable price, but due to limited ductility cracks often appear during thermal processing like laser cladding. This problem is especially visible when several beads are deposited. Therefore, an alloy with increased ductility was selected for tests to check if it can facilitate cladding of defect-free coatings. The alloy was gas atomized and then sieved to desired fraction. The coatings were then deposited with laser cladding. The obtained coatings were fully crystallized with microstructure varied from dendritic to globular one and strong segregation of the phosphorous and molybdenum.

For qualitative statements concerning influences of the substrate's surface on thickness and morphology of the films different surface states were prepared. Aluminium alloys (6000 series alloy) were applied as substrate for the hard anodization. The characterization (thickness, surface morphology) of the alumina films implies significant correlations between surface states of the substrate and film thickness. The results of the film thickness were confirmed with two investigation methods independently. Using Atomic Force Microscopy (AFM) the surface morphologies of both as-received and polished surface states were shown. The obtained roughness values correspond to the values by the conventional roughness measuring station. The comparison between the bare and the subsequently anodized surface morphologies implies an increasing film thickness growth rate with a decreasing roughness of the substrate. All experimental parameters for the hard anodizing process were maintained. Smooth surfaces of the substrate result in less rough anodized films. The effects of pre-treatment on the growth rate and morphology of hard anodized aluminium oxide films on AlSi1MgMn-alloy were summarized in a “hard anodization map”.

The complex demands of construction units require an adjusted coating concept, in order to avoid unintentional changes of characteristics up to eventual failure. The paper makes a contribution to the clarification of the connections between the deposition parameters, the structure and the characteristics of nickel dispersion layers with incorporated micron and nano-particles. The material characterisation by different testing methods supplies abstractive results. Starting from the layer structure (incorporation rate, particle distribution, agglomeration, type of crystallisation of the matrix), correlations between textures, internal tensions and hardness are described. It is shown that the nature of the particles (material structure, hardness, conductivity, shape and size) influences the incorporation behaviour as well as the layer characteristics. The desired fine dispersion of the small particles in the Ni-layers is considerably improved by the use of ultrasound. As a promising result, the corrosion behaviour can be improved using particles the size of 200 nm up to particles the size of microns. The corrosion tests were carried out by means of potentiometric measurements. Applying a strip projection measuring instrument, the volumetric corrosion erosion was quantified.