ID:
23039
Dettaglio:
SSD: Science and Technology of Materials
Duration: 72
CFU: 9
Located in:
DALMINE
Url:
MECHANICAL ENGINEERING - 23-270/PERCORSO COMUNE Year: 2
Year:
2025
Overview
Date/time interval
Secondo Semestre (23/02/2026 - 06/06/2026)
Syllabus
Course Objectives
The course provides the basic knowledge on materials, with particular regards to metallic materials. In the first part of the course microstructure and mechanical properties of different materials are illustrated, with particular attention on the experimentally tests to characterize them. In the second part of the course the metallurgy of steel and cast iron metal alloys are studied. The final part of the course is on the non ferrous alloys (aluminum, copper, titanium, nickel alloys).
Course Prerequisites
Knowledge of basic notions of chemistry (chemical bonds and bond energy) and physical (strength)
Teaching Methods
Lesson and laboratory exercitation
Assessment Methods
Ongoing tests during the course. Telematic written exam with 30 closed questions with answer chosen from 4 possibilities, each valid 1 point. At the end of the ongoing tests, those who have obtained the sufficiency in both will be able to take a short oral interview. Those who do not participate or pass the ongoing tests will have to take the written exam which will always focus on 30 closed questions with a choice of 4 answers. The score is similar to the ongoing tests, 1 point on request. Only by passing the written exam will the oral exam be accessed. At the end of the writing the results (in 30simi) will be displayed on the web page of the course with the calendar of the oral interviews.
Students who have obtained at least 18/30 in the written test will be admitted to the oral exam.
Students who have obtained at least 18/30 in the written test will be admitted to the oral exam.
Contents
Main classes of materials.
Macrostructure and microstructure, states of aggregation in the solid state: amorphous and crystalline state. Microstructural investigation techniques, metallographic microscopy optics and electronics. Main crystal lattices of metallic materials. Point defects (solid state diffusion, alloying), line defects- dislocation (plastic strain of materials), surface defects (grain boundaries), volume defects (microvoids, inclusions and segregations).
Stress and strain. Tensile test. Elastic behavior. Young's modulus. Plastic behavior and strain hardening. Yield strength and tensile strength. Absorption of elastic and plastic energy, and energy to create new surfaces (fracture). Toughness. Elements of fracture mechanics, experimental determination of fracture toughness. Impact test. Hardness testing. Resilience. Fatigue behavior of materials, experimental tests for determining the resistance to fatigue. Behavior at high temperatures (Creep).
State diagrams. Structures of equilibrium and non-equilibrium of metallic materials. Hardening and recrystallization.
Steel. Steel production. Classification. Diagram of Fe-C. TTT diagrams and CCC. Heat treatment: annealing, normalizing, quenching and tempering. Surface hardening. Thermo-chemical treatments. Hardening solution. Effect of alloying elements.
Construction steel. Welding. Nondestructive testing. HSLA steels. Quenched and tempered steels. Stainless steels. Materials for low temperature. High-temperature materials: special steels and nickel alloys. Cast Iron.
Aluminum and its alloys. Copper and its alloys. Titanium and its alloys. Magnesium and its alloys.
Criteria for selection of materials.
Macrostructure and microstructure, states of aggregation in the solid state: amorphous and crystalline state. Microstructural investigation techniques, metallographic microscopy optics and electronics. Main crystal lattices of metallic materials. Point defects (solid state diffusion, alloying), line defects- dislocation (plastic strain of materials), surface defects (grain boundaries), volume defects (microvoids, inclusions and segregations).
Stress and strain. Tensile test. Elastic behavior. Young's modulus. Plastic behavior and strain hardening. Yield strength and tensile strength. Absorption of elastic and plastic energy, and energy to create new surfaces (fracture). Toughness. Elements of fracture mechanics, experimental determination of fracture toughness. Impact test. Hardness testing. Resilience. Fatigue behavior of materials, experimental tests for determining the resistance to fatigue. Behavior at high temperatures (Creep).
State diagrams. Structures of equilibrium and non-equilibrium of metallic materials. Hardening and recrystallization.
Steel. Steel production. Classification. Diagram of Fe-C. TTT diagrams and CCC. Heat treatment: annealing, normalizing, quenching and tempering. Surface hardening. Thermo-chemical treatments. Hardening solution. Effect of alloying elements.
Construction steel. Welding. Nondestructive testing. HSLA steels. Quenched and tempered steels. Stainless steels. Materials for low temperature. High-temperature materials: special steels and nickel alloys. Cast Iron.
Aluminum and its alloys. Copper and its alloys. Titanium and its alloys. Magnesium and its alloys.
Criteria for selection of materials.
Online Resources
More information
on Moodle are available the slides of the lessons
Degrees
Degrees
MECHANICAL ENGINEERING - 23-270
Bachelor's Degree
3 years
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People
People (2)
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Other
Main module
METALLIC MATERIALS