THE AIM OF THE CLASS IS TO GAIN KNOWLEDGE OF THE DIFFERENT LEVELS OF MATERIALS STRUCTURES (ATOMIC, CRYSTALLINE, NANOMETRIC, MICROSCOPIC AND MESOSCOPIC) AND OF THE DEVIATIONS FROM THE STRUCTURAL PERFECTION (DEFECTS). KNOWLEDGE OF THE EFFECTS OF NANO- AND MICROSTRUCTURE ON MECHANICAL PROPERTIES OF MATERIALS. KNOWLEDGE OF THE SCIENTIFIC BASIS FOR THE DEVELOPMENT OF MICRO AND NANOSTRUCTURE. KNOWLEDGE OF THE RELATIONSHIPS BETWEEN NANO- AND MICROSTRUCTURE, PROCESS, PROPERTIES AND PERFORMANCES OF THE DIFFERENT MATERIALS, WITH PARTICULAR ATTENTION TO METALS: STEELS, CAST IRONS, LIGHT ALLOYS AND HIGH TEMPERATURE ALLOYS. THE FUNDAMENTAL CONCEPTS NEEDED TO CORRELATE THE PROPERTIES OF MATERIALS TO THEIR NATURE, PRODUCTION AND FORMING PROCESSES WILL BE DISCUSSED, AS WELL AS NOTIONS ON THE CLASSIFICATION AND APPLICATION PROBLEMS.
teacher profile teaching materials
- Composition: molecules, chemical bonding, Condon-Morse curves; ionic materials, molecular materials
- Thermodynamic origin of elasticity
- Structures: amorphous and crystalline, Bravais lattices, and Miller indices
- Defects in crystalline solids: point, line, and surface defects
Mechanical Behavior of Materials
- Influence of T (temperature) and t (time) on mechanical behavior depending on the nature of the material
- Static tensile stresses at low T: stress-strain curve (elastic field, plastic field, critical points)
- Mechanical properties: ductility, hardness, brittleness, resilience, and toughness (property measurement techniques)
- Fracture mechanics: Griffith's energy theory, stress intensity factor, fracture toughness
- Dynamic stresses: fatigue, Wohler curve, Paris-Erdogan law
Single-Phase and Multi-Phase Systems
- Thermodynamics of systems: thermodynamics of condensed states, basic concepts, first law, second law, equilibrium conditions, non-equilibrium states, combined first and second laws, characteristic state functions
- Solid-state solubility: cooling curves of single-component systems, aggregation state, Hume-Rothery rules, solid solutions, phases
- Solubility dependence on composition, temperature, and pressure: Gibbs rule and lever rule, Gibbs energy, Gibbs curves, phase equilibria in binary systems
- Solid-state phase transformations: diffusion mechanisms, activation energy, and Fick’s laws
- Solidification kinetics and microstructures: nucleation and growth, key thermodynamic transformations, microstructures
Introduction to the Main Classes of Metallic Materials
- Iron-based alloys: classification of steels and cast irons, main phase diagrams, classification of specific heat treatments; special steels, stainless steels, and applications
- Titanium alloys: properties, processes – applications
- Aluminum alloys: properties, processes – applications
- Superalloys: properties, processes – applications
Introduction to the Main Classes of Non-Metallic Materials
- Polymers and polymer matrix composites: properties, processes, applications
- Ceramics: properties, processes, an introduction to Weibull statistics – applications
- Recap, Complements, In-Depth Topics, and Numerical Exercises for Each Subject
Course management: https://moodle1.ing.uniroma3.it/
Slides and course notes: https://moodle1.ing.uniroma3.it/
Online notes, www.stm.uniroma3.it
Programme
Composition and Structure of Matter at Different Dimensional Scales- Composition: molecules, chemical bonding, Condon-Morse curves; ionic materials, molecular materials
- Thermodynamic origin of elasticity
- Structures: amorphous and crystalline, Bravais lattices, and Miller indices
- Defects in crystalline solids: point, line, and surface defects
Mechanical Behavior of Materials
- Influence of T (temperature) and t (time) on mechanical behavior depending on the nature of the material
- Static tensile stresses at low T: stress-strain curve (elastic field, plastic field, critical points)
- Mechanical properties: ductility, hardness, brittleness, resilience, and toughness (property measurement techniques)
- Fracture mechanics: Griffith's energy theory, stress intensity factor, fracture toughness
- Dynamic stresses: fatigue, Wohler curve, Paris-Erdogan law
Single-Phase and Multi-Phase Systems
- Thermodynamics of systems: thermodynamics of condensed states, basic concepts, first law, second law, equilibrium conditions, non-equilibrium states, combined first and second laws, characteristic state functions
- Solid-state solubility: cooling curves of single-component systems, aggregation state, Hume-Rothery rules, solid solutions, phases
- Solubility dependence on composition, temperature, and pressure: Gibbs rule and lever rule, Gibbs energy, Gibbs curves, phase equilibria in binary systems
- Solid-state phase transformations: diffusion mechanisms, activation energy, and Fick’s laws
- Solidification kinetics and microstructures: nucleation and growth, key thermodynamic transformations, microstructures
Introduction to the Main Classes of Metallic Materials
- Iron-based alloys: classification of steels and cast irons, main phase diagrams, classification of specific heat treatments; special steels, stainless steels, and applications
- Titanium alloys: properties, processes – applications
- Aluminum alloys: properties, processes – applications
- Superalloys: properties, processes – applications
Introduction to the Main Classes of Non-Metallic Materials
- Polymers and polymer matrix composites: properties, processes, applications
- Ceramics: properties, processes, an introduction to Weibull statistics – applications
- Recap, Complements, In-Depth Topics, and Numerical Exercises for Each Subject
Core Documentation
Textbook: W.D. Callister, Scienza e Ingegneria dei Materiali EdiSESCourse management: https://moodle1.ing.uniroma3.it/
Slides and course notes: https://moodle1.ing.uniroma3.it/
Online notes, www.stm.uniroma3.it
Reference Bibliography
Textbook: W.D. Callister, Scienza e Ingegneria dei Materiali EdiSES Course management: https://moodle1.ing.uniroma3.it/ Slides and course notes: https://moodle1.ing.uniroma3.it/ Online notes, www.stm.uniroma3.itAttendance
It is recommended (although not mandatory) to attend the lessons in person, also for the laboratory activities and practical sessions on the advanced materials studied.Type of evaluation
The students' preparation is assessed through a written test, followed by an oral examination (optional, if the written test is sufficient). The possibility of an intermediate test to be made halfway through the course will also be assessed, depending on the specific needs of the students.