ENGINEERING MATERIALS AND TECHNOLOGY

Ingegneria Gestionale ENGINEERING MATERIALS AND TECHNOLOGY

0612600007
DIPARTIMENTO DI INGEGNERIA INDUSTRIALE
EQF6
INDUSTRIAL ENGINEERING AND MANAGEMENT
2022/2023

OBBLIGATORIO
YEAR OF COURSE 1
YEAR OF DIDACTIC SYSTEM 2018
SPRING SEMESTER
CFUHOURSACTIVITY
660LESSONS
Objectives
OBJECTIVES
THE COURSE IS AIMED AT PROVIDING BASIC CONCEPTS ON STRUCTURE, MECHANICAL BEHAVIOR AND PROPERTIES, EVEN AFTER HEAT TREATMENT, OF METAL ALLOYS USED FOR STRUCTURAL COMPONENTS IN THE MANUFACTURING INDUSTRY. THE STUDENTS ARE GUIDED TO UNDERSTAND THE DEPENDENCE AMONG MATERIAL PROPERTIES, THEIR TRANSFORMATIONS AND POSSIBLE USE IN ENGINEERING.
KNOWLEDGE AND UNDERSTANDING
CHARACTERISTICS AND STRUCTURE OF METALLIC MATERIALS
MECHANICAL BEHAVIOR OF METALLIC MATERIALS
INFLUENCE OF HEAT TREATMENTS ON THE MECHANICAL CHARACTERISTICS OF METAL ALLOYS
APPLIED KNOWLEDGE AND UNDERSTANDING
READ AND INTERPRET THE STATE DIAGRAM OF A TWO-COMPONENT SYSTEM.
ANALYZE THE TTT DIAGRAMS.
DETERMINE THE STRESS-STRAIN CURVES FROM THE MACHINE DIAGRAM OF A TENSILE TEST.
INTERPRET THE RESULTS OF THE MECHANICAL CHARACTERIZATION TESTS.
JUDGMENT AUTONOMY
CHOOSE THE APPROPRIATE MECHANICAL TEST AND INTERPRET THE RESULTS FOR THE SELECTION OF THE MATERIALS
COMMUNICATION SKILLS
PRESENTING THE CONTENTS OF THE COURSE AND THE CALCULATION PROCEDURES WITH PROPER LANGUAGE.
Prerequisites
PREREQUISITES
BASIC MATERIAL STRUCTURE
BALANCING OF SIMPLE CHEMICAL REACTIONS
ALGEBRAIC AND TRIGONOMETRIC FUNCTIONS
BASIC OPERATIONS WITH VECTORS
FORCES AND MOMENTS
Contents
CONTENTS
1) METALS (6 H THEORY, 4 H EXERCISE)
A PRODUCT TO BE MANUFACTURED AND THE STUDY OF MATERIALS. SOLID STATE: CRYSTALLINE LATTICE AND DEFECTS.
2) MECHANICAL BEHAVIOR OF METALS (12 H THEORY, 8 H EXERCISE)
FORCE AND STRESSES, SINGLE-AXIAL LOADING. PLASTIC DEFORMATION. HARDENING, EFFECT OF TEMPERATURE AND STRAIN RATE HOT AND COLD PLASTIC DEFORMATIONS. ENERGY FOR ELASTIC AND PLASTIC DEFORMATION.
3) THERMAL TREATMENTS (12 H THEORY, 8 H EXERCISE)
SOLID SUBSTITUTIONAL AND INTERSTITIAL SOLUTIONS. PHASE LAW. BINARY DIAGRAMS. THE IRON-CARBON PHASE DIAGRAM. NUCLEATION AND GROWTH OF GRAINS. DIAGRAMS OF ISOTHERMAL PHASE TRANSFORMATION. SOLID STATE DIFFUSION, SEGREGATION. CLASSIFICATION OF THERMAL TREATMENTS FOR METALS. THERMAL TREATMENTS FOR STEEL, MARTENSITIC TRANSFORMATION AND THERMAL HYSTERESIS, TTT DIAGRAMS.
4) MECHANICAL TESTS (6 H THEORY, 4 H EXERCISE)
BRINELL, VICKERS, POLDI AND ROCKWELL HARDNESS TESTS. MICRO-HARDNESS TEST. RESILIENCE TEST. TENSILE TEST: SIZING OF TEST SPECIMENS, RESULTS AND TEST REPORTS.
Teaching Methods
TEACHING METHODS
TEACHING INCLUDES THEORETICAL CLASSES AND NUMERICAL EXERCISES; NAMELY, THE PROBLEMS ARE INTENDED TO BE DISCUSSED IN COOPERATION BEFORE THE EVENTUAL SOLUTION BY THE PROFESSOR, SO THAT EACH STUDENT CAN PROCEED TO SELF-EVALUATION OF THE PREPARATION. DURING THE COURSE EDUCATIONAL VIDEOS AND INTERACTIVE SIMULATIONS ARE EVEN PROPOSED TO THE PURPOSE OF EASIER UNDERSTANDING OF THE TOPICS.
Verification of learning
THE EXAMINATION CONSISTS OF A WRITTEN TEST AND A MANDATORY ORAL TEST. THE WRITTEN TEST IS PASSED IF THE STUDENT REACHES AT LEAST 18/30; THE TEST CONSISTS IN CARRYING OUT 5 NUMERICAL EXERCISES, IN 2 HOURS, TO ASSESS THE KNOWLEDGE OF THE METHODS OF PROBLEM SOLVING RELATING TO MECHANICAL BEHAVIOR AND CRYSTAL STRUCTURE OF METALS, BINARY DIAGRAMS, HEAT TREATMENTS AND MECHANICAL CHARACTERIZATION TESTS.
THE ORAL EXAM IS AIMED AT VERIFYING THE LANGUAGE AND THE ABILITY TO ILLUSTRATE THE CONTENT OF THE COURSE.
THE FINAL MARK IS DETERMINED BY THE AVERAGE OF THE WRITTEN TEST AND THE ORAL TEST; HONORS ARE AWARDED IF THE STUDENT SHOWS AUTONOMOUS PROCESSING SKILLS AND LOGICAL CONNECTION AMONG THE COURSE TOPICS. SUFFICIENCY IS REACHED IF THE STUDENT SHOWS THE KNOWLEDGE OF THE MECHANICAL BEHAVIOUR OF METALLIC MATERIALS, OF THE STEEL DIAGRAM AND OF THE HEAT TREATMENTS OF STEELS.
DURING THE COURSE IT IS POSSIBLE TO CARRY OUT TWO PARTIAL TESTS, APPROXIMATELY AFTER HALF OF THE CLASSES AND AT THE END. THE FIRST TEST IS ATTRIBUTED A WEIGHT OF 25%; THE SECOND TEST, EVEN INCLUDING EXERCISES CONCERNING THE FIRST PART OF THE COURSE, IS ASSIGNED A WEIGHT OF 75%; IF THE OVERALL MARK OF THE PARTIAL TESTS EXCEEDS 18/30, THE STUDENT IS EXEMPTED FROM THE WRITTEN TEST. THE EXEMPTION IS ONLY VALID FOR THE EXAM SESSION FOLLOWING THE COURSE.
Texts
BOOKS AND REFERENCES
F. CAIAZZO, V. SERGI: TECNOLOGIE GENERALI DEI MATERIALI, CITTÀ STUDI EDIZIONI, TORINO, 2012
F. CAIAZZO, V. SERGI: PROBLEMI DI TECNOLOGIE GENERALI DEI MATERIALI, MAGGIOLI EDITORE, 2013
MULTIMEDIA PRESENTATIONS OF THE CONTENTS ARE AVAILABLE AT ELEARNING.UNISA.IT
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