Academic Year 2016/2017 - 2° Year
Teaching Staff: Antonino POLLICINO
Credit Value: 6
Scientific field: ING-IND/22 - Materials science and technology
Taught classes: 36 hours
Term / Semester:

Learning Objectives

The course aims to provide basic knowledge about materials of interest for civil engineering, correlating the application characteristics to the composition, structure, production and processing technologies.

Detailed Course Content

1.GENERAL INTRODUCTION TO MATERIALS. The Price and Availability of Materials. 2. STRUCTURE AND PROPERTIES. MECHANICAL PROPERTIES. The Elastic Moduli. Definition of Stress. Definition of Strain. Hooke's Law. Measurement of Young's Modulus. Bonding between Atoms. The condensed states of matter. Interatomic forces. Packing of Atoms in Solids. Atom Packing in Crystals. Crystallography. Atom Packing in Polymers. The Physical Basis of Young's Modulus. Moduli of Crystals. Rubbers and the Glass Transition Temperature. Composites. Yield Strength, Tensile Strength, and Ductility. Linear and Nonlinear Elasticity. Load–Extension Curves for Nonelastic (Plastic) Behavior. True Stress–Strain Curves for Plastic Flow. Plastic Work. Tensile Testing. The Hardness Test. Dislocations and Yielding in Crystals. Strengthening Methods and Plasticity of Polycrystals Continuum Aspects of Plastic Flow Fast Fracture and Toughness. Micromechanisms of Fast Fracture. Probabilistic Fracture of Brittle Materials. Fatigue Failure. Creep and Creep Fracture. Kinetic Theory of Diffusion. Mechanisms of Creep, and Creep-Resistant Materials. 3. METALS Metal Structures. Phase Diagrams. Driving Force for Solidification. Solid-State Phase Diffusive Transformations. Solid-State Phase Changes. Nucleation. Displacive Transformations. Diffusive F.C.C. to B.C.C. Transformation in Pure Iron. Time–Temperature–Transformation Diagram. Displacive F.C.C. to B.C.C. Transformation. Details of Martensite Formation. Light Alloys. Solid Solution Hardening. Age (Precipitation) Hardening. Carbon Steels. Microstructures After Slow Cooling (Normalizing). Mechanical Properties of Normalized Steels. Quenched-and-Tempered Steels. Alloy Steels. Stainless Steels. Cast Iron. 4.POLYMERS AND COMPOSITES. Polymer Structures. Molecular Length. Molecular Architecture. Molecular Packing and Glass Transition. Mechanical Properties of Polymers. Stiffness—Time and Temperature Dependent Modulus. Strength—Cold Drawing and Crazing. Composites. Properties of Composites. Fiber Composites. Modulus. Tensile Strength. Toughness. 5. CORROSION. Oxidation of Materials. The Energy of Oxidation. Rates of Oxidation. Micromechanisms. Wet Corrosion of Materials. Voltage Differences as the Driving Force for Wet Oxidation. Pourbaix (Electrochemical Equilibrium) Diagrams. Localized Attack. 6. CEMENT AND CONCRETE Chemistry of Cement. Structure of Portland Cement. Concrete. Strength of Cement and Concrete. High-Strength Cement. Reinforcing Cement and Concrete. Durability.

Textbook Information

1. W. D. Callister, Jr.: “Scienza e Ingegneria dei Materiali una introduzione” (Edises)

2. W. F. Smith: “Scienza e Tecnologia dei Materiali” (McGraw - Hill)

3 . L. Bertolini: Materiali da costruzione – Città Studi Ed. Vol. 1 e 2

4. G.Bianchi, F. Mazza Corrosione e protezione dei metalli – Collana tecnica AIM

5. Class notes