Learning outcomes of the course unit
Knowledge and ability to understand: Through the lectures held during the course, the student will acquire the methods and knowledge on the main classes of ferrous metals (steels and cast iron) and light alloys (Aluminum, Magnesium ) with emphasis On the relationship between mechanical properties and microstructure.Ability to apply knowledge and understanding: through practical classroom or laboratory exercises related to some topics in the program, students learn how to apply knowledge acquired in a real context of industrial issues.Judgment autonomyThe student should be able to comprehend and critically evaluate the alloying elements in the major classes of studied metals, thermal treatments, microstructure, mechanical and physical characteristics and main applications, so that they can aspire to give guidance on the design choice of the metallic material.Communication skillsThrough the frontal lessons and the comparison with the teacher, the student acquires the specific vocabulary inherent in the physical metallurgy and the main classes of ferrous metals and not. It is expected that at the end of the course the student will be able to transmit the content of the course and the metallurgical problems in oral and written form.Learning abilityThe student who has attended the course will be able to deepen his / her knowledge in the metallurgical field through the autonomous consultation of specialized texts, scientific or divulgative journals, even outside the subjects strictly dealt with in lesson, in order to effectively address the insertion In the world of work or undertake further training paths.
Course contents summary
The course proposes the main classes of ferrous metals (steels and cast iron) and light alloys (Aluminum, Magnesium and Titanium alloys) in order to understand the different types of use. Particular emphasis is placed on the influence of the microstructure on the mechanical properties of the components. The first part of the course therefore focuses on topics of physical metallurgical and fundamentals to have a solid basis for dealing with the different classes of ferrous and non-ferrous alloys envisaged in the program.
Fundamental physical metallurgy: solidification of metals, defetcs, diffusion and thermal treatments.
Microstructural investigation Techniques of Metals: Optical and electron Microscopy.
Classification of steels. General construction steels (low carbon), special steels (medium and high carbon), maraging steels, tool steels, stainless steels, high and low temperature steels, 13% Mn alloy steels, casting steels. Cast iron: classification, white iron, gray iron, graphite shape and distribution, mechanical properties, perlitic cast iron, alloyed cast iron, spheroidal cast iron, ADI.
Non-ferrous metals. Aluminum and its alloys: designation, casting alloys, wrought alloys. Magnesium and its alloys: designation, cast and wrought alloys.
Teaching notes and slides are made available to students in Elly web site. The following textbooks are recommended for study: : i) I.J. Polmear, Light alloys –Metallurgy of the Light Metals, 3 ed.Butterworth-Heinemann, Oxford (2000); ii) W. Nicodemi, Metallurgia: principi generali, Zanichelli (2007); iii) W. Nicodemi, Acciai e leghe non ferrose, Zanichelli editore (2008).
The course is held in 6 CFUs, which correspond to 48 hours of lesson. The didactic activities will be carried out by focusing on frontal classroom lessons in which the course topics will be discussed from a theoretical point of view, in order to promote understanding of the various classes of metal materials with particular emphasis on the relationship between the microstructure and the mechanical properties. Class exercises will be shown.
Assessment methods and criteria
The exam is a written test, divided into 7-8 questions that may relate to the theoretical contents and / or the exercises dealt with during the course. The exam is passed if the grade is at least 18/30. The grade ’30 cum laude’ is given if the maximum score is achieved and mastery of the disciplinary vocabulary is demonstrated.