|Politecnico di Torino|
|Academic Year 2007/08|
Technology of Metallic Materials
1st degree and Bachelor-level of the Bologna process in Automotive Engineering - Torino
Objectives of the course
The module proposes to correlate the composition, structure and modes of manufaucturing of components of metal alloys and their
properties with the aim of identifying the most suitable materials, from the technological and economical points of view, for the
realization of motor vehicles.
The student must be familiar with metal alloys, and in particular with the mechanical and technological charateristics, thus building up
the criteria for the choice of metalic materials for the manufacturing of motor vehicle components.
It is considered essential a knowledge of the contents of the modules Material Technology and Applied Chemistry and Mechanical
behaviour of Materials.
· outlines on the crystalline structure of metals; solid solutions for substitution and intrusions, intermetallic phases, composite semimetallics,
· substutional and interstizial diffusion phenomenoms, strain hardening and recristallization processes, grain growth, solidification
mechanism, nucleation and growth of solid phases.
· phase diagrams Fe-C, Fe-N, Fe-Ni, Fe-Cr, Al-Cu, Al-Si, Al-Mg, Cu-Zn, Cu-Sn, etc.
· casting: solidifications and microstructure of the casting, defects and their affect on the charateristics of the components; foundary:
models, forms, cores, meltdown in gravity, in sand and in chill, die casting, moulding of semi.solid materials.
· metallurgic problems of the moulding processes in plastic deformations: forging, lamination, extrusion, drawing, stamping; hot and cold
deformation; effects on the microstructure and mechanical characteristics of the plastic deformation.
· sintering: traditional processes, powder forging, metal injection molding, hot isostatic pressing; microstructure and mechanical
characteristics of sintered components.
" outline of the problems of metal alloy corrosion and the protective systems used.
· influence of alloying elements on the properties of steel
· steel designation
· heat treatment of steels: annealing, normalizing, quenching and tempering, hardenability of the steels
· surface heat treatments of steels: surface quenching, carburizing and nitriding treatments
· steel for motor vehicle components: sheet metal, carpentry steels, quenching steels, spring steels, bearing steels, tool steels,
welding metallurgical problems of steels
· inoxidable steels; austenite, ferrite, martensite microstucture
· cast irons: grey cast irons, ductile cast irons, white cast irons, heat treatment on cast irons, austempered cast irons
· sintered steels
NON-FERROUS METAL ALLOYS (1 credit, 6 hours of lessons, 4 hours of workshops)
· alluminium; alluminium alloys of interest to the motor vehicle: foundry and wrought alloys; thermomechanical treatments of alluminium
· magnesium; magnesium alloys of interest to the motor vehicle: foundry and wrought alloys; thermomechanical treatment of
· outlines of copper and its alloys; brasses and bronzes.
The Lecturer is available for clarifications of the subjects covered and to informally verify the level of understanding of the students. The
students are divided in two reams.
A. Burdese, "Metallurgia e Tecnologia dei Materiali Metallici", UTET, Torino.
W. Nicodemi, "Metallurgia, Principi Generali" e "Acciai e Leghe Non Ferrose", Zanichelli, Bologna.
There will also be available teaching material in the form of photocopies and duplicated lecture notes.
The exam consists of a written test.
Programma provvisorio per l'A.A.2005/06