Corrosion surface damage in the form of pitting and micro-cracks is observed in many metals. Cracks usually initiate from the pits and grow under cyclic stresses and eventually lead to material failure. An image analysis based on wavelet transforms and fractals was used to study the corrosion morphology of nickel aluminum bronze metal under varying corrosion conditions and applied stresses. Ima...

This paper presents long-term condition assessment approaches of cables and bridge decks under in-service loads based on Structural Health Monitoring (SHM) technique. Aiming to the critical structural components, three important issues related to the long term performance evaluation, including loads and responses modelling, resistance degradation and fatigue life assessment, were investigated i...

Pitting is a form of localized corrosion. One way to increase pitting resistance is, therefore, cover surfaces with inhibitor molecules. Many plant extracts have been reported be able adsorb onto metal surfaces. According uniform corrosion, the corrosion rate decreased due adsorption. Terminalia bellirica fruit contains organic chemicals which can The extract was used in this work as for 304 st...

Semi-solid metal processing results in liquid segregation at the surface of the components. The pitting behavior of this surface layer of semi-solid metal processed alloy F357 was compared with the centre (or bulk) of cast plates in 3.5% NaCl aqueous solution. It is shown that pitting attack occurs preferentially in the eutectic regions at the interface between silicon particles and the alpha p...

The influence of the microstructure X5CrNi18-10 stainless steel welded joint on its resistance to general, pitting, and intergranular corrosion was analyzed. structure weld metal, heat affected zone (HAZ) base metal before after electrochemical testing analyzed using SEM/EDS. roughness level mentioned types also examined. Although degree sensitization HAZ significantly lower than limit value, s...

Air abrasion process is used for cleaning casting surface of prosthetic components, and to prepare the surface of these elements for the application of veneering items. Its side effect, however, is that abrasive particles are embedded in the treated surface, which can be up to 30% of the surface and it constitutes the side effect of this procedure. Such a significant participation of foreign ma...