Course books:
S. Barella, A. Gruttadauria “Metallurgia e materiali non metallici” Esculapio editore
Alternatively:
William F. Smith, Scienza e Tecnologia dei Materiali, McGraw-Hill
Bernardo Marchese. Tecnologia dei Materiali e Chimica Applicata. Liguori Editore. James F. Shackelford, Scienza e ingegneria dei materiali 7/Ed., Pearson Education
Learning Objectives
The aim of the course is to provide the student with fundamental knowledge on the mechanical properties of materials, on measurement methods, on correlations of material properties with the microstructure and the production technologies, mainly referring to metallic materials and with a less extent to ceramics, polymers and composites. The course intends also to provide a basic knowledge on the durability of structural materials and on the use of material coupled with wood.
Provided knowledge: cc3-Systematic knowledge and understanding of the key aspects of mechanical design of industrial engineering and its methods. In particular: understanding of which are the most suitable methods in order to define a product and its characteristics; knowledge of the technology of the materials that can be used, of the mechanical study of parts and assemblies, their dimensioning, their static and dynamic behaviour and interactions between components. The technologies for their production and their graphic representation are also areas of knowledge and understanding.
Application ability: ca3-Applying knowledge and understanding related to the most appropriate methods of analysis, modelling, verification and experimentation to design, analyze and test machines and plants. This includes: the interpretation and drafting of mechanical parts and machines (also using dedicated CAD systems); the sizing and the functional and structural verification of components and mechanical groups subjected to static and fatigue stress; the functional setting of the design of a mechanical system, applying the principles of kinematics and static principles; analysis of the characteristics of metallic and polymeric materials for the production; the choice of the best production process aimed at the creation of mechanical components; analysis and design of production systems including the study of reliability, safety and economic and environmental sustainability.
Prerequisites
Chemistry and physics basic knowledge.
Teaching Methods
The course is hold by lectures.
Further information
Type of Assessment
The evaluation of the student consists in an oral exam. For each exam date, the scheduling is defined according to the reservation order (the student chooses between the available dates according to the registration order). Topics developed in class are proposed during the exam and the student must demonstrate a basic knowledge of the topics (cc3) and be able to correlate the structure, properties and production processes of materials (ca3).
Course program
Introduction to materials science and technology.
Classes of materials. Atomic and molecular bonds. Ionic, covalent, metallic and molecular solids.
Structure and properties
Crystalline and amorphous materials. Elementary unit cells and crystalline lattices. Crystalline structures of metals. Crystal defects.
Mechanical properties of metals.
Mechanical behavior of materials. Elastic deformation, plastic deformation. Determination of the mechanical properties of materials. Tensile test. Stiffness, strength, hardness, resilience and toughness. Strengthening of metallic materials.
Ductile and fragile fracture. Fatigue and creep.
Solid state transformations.
Two-component phase diagrams with complete, zero and partial solubility in the solid state. Compound formation. Eutectic and peritectic transformations. Fe-C diagram. Austenite transformation on cooling. Non-diffusive phase transformations.
Ferrous alloys
Production, classification and designation of steels and cast irons. Heat treatments of steels: annealing, normalization, hardening, tempering.
Non ferrous alloys: production and characteristics.
Ceramic materials: production and characteristics.
Polymeric materials: production and characteristics.
Composite materials: Types, production and charactetistics.