6063 aluminum anodized extrusions may exhibit a common surface defect known as streaking, characterized by the formation of narrow bands with a surface gloss different from the surrounding material. The origin of this banding lies in the differential surface topography produced after etching during the anodizing stage, shown to be connected to certain microstructural characteristics. The presen...

Abstract The results of experiments on low-energy implantation AISI 321 stainless steel by nitrogen ions are presented. treatment was carried out a pulsed beam obtained using ballistic ion focusing system. surface modification occurs with the formation two-layer structure, which is typical for ion-plasma nitriding processes steels. thickness modified layer can reach 27 μm after 1 hour treatment...

By using the developed finite-element models, we perform numerical investigation of nonstationary temperature fields and kinetics microstructural phase transformations in base material WWER -1000 reactor vessel (15Kh2NMFА steel) under conditions submerged-arc cladding protective anticorrosion layers austenitic materials. We comparative analysis results simulation obtained by two methods predict...

Abstract Graphitic cast irons are the most important and widely used materials for production of castings. Increasing requirements quality these castings lead to increased demands on control foundry from raw through technological operations finished product. An integral part this process is structural analysis, because properties graphitic depend mainly their structure (on shape, size number pa...

The study reports a systematic examination and analysis of low-tin wrought bronzes from archaeological burial environments in the Mediterranean. corrosion profiles occurring on samples taken thirty-six predominantly Corinthian Illyrian helmets excavations Greece, were analysed using polarised metallography, SEM-imaging, SEM-EDX X-Ray Diffraction methods. Analysis confirms expands understanding ...