Materials for mechanical industries
Powder metallurgy technology. Powders (types and properties), compacting pressing (materials classes, types of dies, methods), sintering (furnaces, atmospheres, operating conditions, mechanism) post-treatments, products. Corrosion. Anodic and cathodic behavior. Oxygen, temperature and solution concentration influences. The different types of corrosion. Galvanic corrosion coupling different materials or in case of different phases. Active and passive behavior of stainless steels. Protection methods of metallic materials. Stainless steels. Schaeffler and De Long diagram. Stainless steels classes and designation. Heat treatment, welding, deformability and tool work-ability. Surface finishing. Sanification. Metallic ions release. Tool steels. Cold and hot working classes. Heat treatment and tempering parameters. High speed steels. Deep drawing steels and aluminum alloys for "Body in White" car components. Surface coating technologies and materials. Titanium alloys. Grades, alloying elements, phase diagrams, properties, heat treatments, influence of microstructure. Applications and products. Metallic materials microstructure and failure analysis: fracture modes and morphologies. Overview of cellular materials, applications. Metal foams with open and closed cells. Elastic and plastic compression behavior, density effect. Absorption of energy during the impact.