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Scheda Riassuntiva
Anno Accademico 2018/2019
Scuola Scuola di Ingegneria Industriale e dell'Informazione
Insegnamento 052450 - SOLIDIFICATION AND WELDING METALLURGY
Cfu 6.00 Tipo insegnamento Monodisciplinare
Docenti: Titolare (Co-titolari) Castrodeza Enrique Mariano

Corso di Studi Codice Piano di Studio preventivamente approvato Da (compreso) A (escluso) Insegnamento
Ing Ind - Inf (Mag.)(ord. 270) - BV (483) MECHANICAL ENGINEERING - INGEGNERIA MECCANICA*AZZZZ052450 - SOLIDIFICATION AND WELDING METALLURGY

Obiettivi dell'insegnamento

The goal of this course is to achieve a deep comprehension on the principles of solidification and welding metallurgy, as well as the most common welding processes for metals. The fundamentals of solidification of metals are presented and the main industrial welding processes are discussed in depth. The fracture toughness of welded joints is also discussed and guidelines for its experimental evaluation are provided.


Risultati di apprendimento attesi

After attending the course and after the final examination, the student will:

  • understand the basic aspects of the solidification of metals;
  • know and understand the main industrial welding processes for metals, including your advantages, limitations and field of application;
  • understand the metallurgical processes that occur in every region of fusion welding, including the main variables that controls the final microstructure of the weld metal and the heat affected zone for minimizing the presence of fragile zones.

Argomenti trattati

Introduction: Fusion Welding Processes; Heat Flow in Welding; Chemical Reactions in Welding; Fluid Flow and Metal Evaporation in Welding; Residual Stresses and Distortion.

The Fusion Zone: Basic Solidification Concepts; Weld Metal Solidification; Post-Solidification Phase Transformations; Weld Metal Chemical Inhomogeneities; Weld Metal Solidification Cracking.

The Partially Melted Zone: Formation of the Partially Melted Zone; Problems Associated with the Partially Melted Zone.

The Heat-Affected Zone (HAZ): HAZ in Work-Hardened Materials; HAZ in Precipitation-Hardening Aluminum Alloys; HAZ in Precipitation-Hardening Nickel-Base Alloys; HAZ in Transformation-Hardening Carbon and Alloy Steels; HAZ in Stainless Steels.

Fracture Toughness of Welded Joints: Elastic-Plastic Fracture Mechanics (CTOD, J-Integral, etc.); Crack Growth Resistance Curves; Standardized Methodologies for Fracture Toughness Evaluation.


Prerequisiti

The previous attendance of Mechanical Technology I (Tecnologia Meccanica I) is suggested.


Modalità di valutazione

Written test with some exercise and questions. This test will verify if the students have got the theoretical knowledge and understanding about welding of metals and its fracture toughness, as well as the ability of apply these concepts on the assessment of welded joints.


Bibliografia
Risorsa bibliografica obbligatoriaK. Weman, Welding Processes Handbook, Editore: Woodhead Publishing, Anno edizione: 2012
Risorsa bibliografica obbligatoriaK. Easterling, Introduction to the Physical Metallurgy of Welding, Editore: Butterworth-Heinemann, Anno edizione: 1992
Risorsa bibliografica obbligatoriaS. Kou, Welding Metallurgy, Editore: Wiley-Interscience, Anno edizione: 2003

Software utilizzato
Nessun software richiesto

Forme didattiche
Tipo Forma Didattica Ore di attività svolte in aula
(hh:mm)
Ore di studio autonome
(hh:mm)
Lezione
39:00
58:30
Esercitazione
21:00
31:30
Laboratorio Informatico
0:00
0:00
Laboratorio Sperimentale
0:00
0:00
Laboratorio Di Progetto
0:00
0:00
Totale 60:00 90:00

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
schedaincarico v. 1.10.0 / 1.10.0
Area Servizi ICT
26/06/2024