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The Metallurgy course is based on the assumption that students have a basic knowledge of Chemistry
The primary focus of the Metallurgy Course is to provide undergraduates with a fundamental knowledge of metals and metallic alloys – especially ferrous alloys – their properties and selection. A further goal is the introduction of the main damage phenomena involving metallic materials: fatigue, brittleness, corrosion, wear and creep. At the end of the course the students have to acquire the ability to understand the problems concerning the best choice of a metallic material for a specific application starting from its microstructure and mechanical behavior.
A basic knowledge of metallic materials used in mechanical engineering applications is provided. A particular attention will be devoted to different steel grades in order to evaluate their mechanical properties related to their microstructure.
1.1 The structure of crystalline solids; point defects, dislocations, bulk or volume defects. Solid solutions. Intermetallic compounds. Diffusion mechanisms.Polymorphic transformations. 1.2 Solidification of metals and metallic alloys. 1.3 Binary phase diagrams: eutectic systems; equilibrium diagrams having intermediate phases or compounds. The Iron-Iron Carbide Phase Diagram 1.4 Mechanical testing: Tensile test; Hardness and impact test. 1.5 Phase transformations: Isothermal transformation diagrams; Continuous Cooling Transformation diagrams. Microstructure: Perlite, Bainite and Martensite. Steel quenchiability. 1.6 Heat treatments: Annealing, normalizing, quenching and tempering. Solution treatment and aging. Carburizing and nitriding. 1.7 Strengthening mechanisms 1.8 Failure: Fatigue, creep, brittleness, wear and corrosion 1.9 Introduction to steel production 1.10 Steels: Designation according to different standards. Carbon steels, tool steels, stainless steels. 1.11 Cast Irons: microstructure and mechanical behavior 1.12 Non-ferrous alloys: Al alloys; Mg alloys; Ti alloys and Cu alloys.
W. Nicodemi, Metallurgia - Principi generali, Zanichelli, 2007 W.D. Callister, Scienza e Ingegneria dei materiali, EdiSES, 2007 W.Nicodemi, Acciai e leghe non ferrose, Zanichelli, 2007
The course programme includes modules with theoretical lectures as well as practical exercises
The final exam consists of a written part.
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