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Subject: AUTOMOTIVE MATERIALS (A.A. 2019/2020)

degree course in AUTOMOTIVE ENGINEERING

Course year 2
CFU 6
Teaching units Unit materiali per il veicolo
Related or Additional Studies (lesson)
  • TAF: Supplementary compulsory subjects SSD: ING-IND/22 CFU: 6
Teachers: Tiziano MANFREDINI, Paolo VERONESI
Exam type written
Evaluation final vote
Teaching language Italiano
Contents download pdf download

Teachers

Paolo VERONESI
Tiziano MANFREDINI

Overview

Sviluppare nello studente le conoscenze di base sulla scienza dei materiali in particolare sulla struttura dei materiali, e sulle correlazioni di questa rispetto alle proprietà chimico,fisiche e meccaniche e fornire informazioni su come sia possibile modificare le strutture con trattamenti fisici e chimici al fine di modificarne le proprietà ingegneristiche. Presentare i concetti di base relativi alle trasformazioni di fase e ai meccanismi di rinforzo. Introdurre lo studente alle prove sui materiali. Fornire allo studente un quadro il più ampio possibile delle proprietà di leghe metalliche, materiali compositi e ceramici, con particolare riguardo al loro utilizzo nel veicolo.

Admission requirements

CHEMISTRY

Course contents

Structure of materials: crystalline and amorphous materials. Defects. Microstructure of materials. Introduction to mechanical properties of materials. Solid state diffusion. Introduction to phase diagram. Solid state transformation: thermodynamic and kinetic aspects. Solid state reactions and sintering. Elastic and plastic deformation; Elements of dislocation theory; and strengthening mechanisms. Types of fracture, basic mechanism of ductile and brittle fracture. Characteristics of fatigue, initiation and propagation of fatigue cracks. Introduction to creep behaviour of metals. Fe-C alloys: Fe-C equilibrium diagram; phases and micro-constituents in steels and cast irons. Fundamental of heat treatment of steel. TTT diagram, CCT diagram. Hardening and tempering, annealing and normalizing of steels. Thermochemical treatments of steels. Types and designation of steel. Non ferrous alloys and their applications in the automotive field. Plastic materials and their applications in the automotive field. Ceramic materials and their applications in the automotive field. Composite materials and their application in the automotive field. Powder metallurgy

Teaching methods

lectures; seminars; projection of audio / video material

Assessment methods

written exam (theory + exercises) with open questions and barrier 18/30 and mandatory oral test in case of score below 21/30; oral exam (not compulsory for scores higher than 20/30). AN EXAMPLE OF WRITTEN TEST IS PROVIDED ON DOLLY

Learning outcomes

Knowledge and understanding: Through lectures, seminars and audio / video materials, students learn the basics of materials science applied to automotive and related technologies of production and gains the ability to solve simple problems regarding mechanical properties, phase diagrams and diffusion. Applying knowledge and understanding: Through exercises in class, the student is able to apply his/her knowledge to the design of a heat treatment, the design of simple structures and to forecast the consequences of a heating / cooling stage Making judgments: Through the presentation of different interpretations for the same phenomenon, the student is led to develop independent judgment; exercises with results "impossible" or infinite solutions enhance the ability to develop critical judgment. Communication skills: direct participation in exercises, in which the students have to communicate the results of their individual work Learning skills: the activities described allow the student to acquire the methodological tools to continue their studies and to be able to independently investigate the topics of interest.

Readings

William D. Callister,‎ David G. Rethwisch, Materiali per l'ingegneria civile ed industriale. - J. F. Shackelford , Scienza e ingegneria dei materiali, Ed. Pearson, Prentice Hall - Dispense del docente - W.F. Smith, Scienza e Tecnologia dei Materiali, Ed. McGraw-Hill - M.F. Ashby - Materials Selection in Mechanical Design".- Butterworth & Heinemann. - W. Nicodemi - Metallurgia: principi generali - Zanichelli - W. Nicodemi - Acciai e leghe non ferrose – Zanichelli