Materials Science

Code:

L.EM002

Acronym:

CM

Keywords
Classification	Keyword
OFICIAL	Materials

Instance: 2022/2023 - 1S

Active?	Yes
Responsible unit:	Materials and Technological Processes Group
Course/CS Responsible:	Bachelor in Mechanical Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
L.EM	281	Syllabus	1	-	6	45,5	162

Teaching language

Portuguese

Objectives

Acquisition of fundamental knowledge in materials science, namely:

• Know the main materials used in Mechanical Engineering, the main properties (thermal and mechanical) and applications.


• Understand and relate the various factors that contribute to the great diversity of mechanical behaviour of the materials


• (structure, chemical composition, defects, chemical bonds, processing).


• Use equilibrium diagrams.


• Understand the basic principles of fracture mechanics, fatigue and fluence.


• Know the main mechanical tests (traction, hardness, toughness, fatigue, creep) to determine the mechanical properties of the materials.


• Understand the main forms of materials degradation and processes to minimize or avoid them.

Experimental Skills
Experimental work related to the contents of the UC.

Transversal Competencies
Extracurricular teamwork and reports.

Learning outcomes and competences

Engineers must understand in an integrated, deep and diverse way the material issues - structure, properties, processing and performance - that are fundamental to produce everything we use and need.
Thus, the essential objective of this UC is to provide students with the fundamental concepts of materials science. The 8 topics of the programmatic content constitute a natural sequence of presentation of the concepts, from the atom, through the structure, chemical bonds, defects, general notions of material processing, in order to relate all these factors with the properties that can be obtained in the different types of materials.
At the end of the course, students should have knowledge of materials and be aware of the great diversity of factors that are fundamental in their selection.

Working method

Presencial

Pre-requirements (prior knowledge) and co-requirements (common knowledge)

Not applicable.

Program

MATERIALS SCIENCE: Materials and applications.

MATERIAL DEGRADATION: Electrochemical concepts. Rates and forms of corrosion. Main methods of materials protection.

CHEMICAL BONDS AND STRUCTURES: Atom structure. Chemical bonds. Crystalline and amorphous structures. X-ray diffraction.

PHASE DIAGRAMS: Diffusion. Phases. Binary diagrams: rules of interpretation, cooling curves. Ternary diagrams.

MECHANICAL BEHAVIOR: Tension and extension. Elastic and plastic behaviour. Hooke's law and elastic properties. Tensile test and engineering curve. Strength and ductility. Theoretical resistance of crystals. Defects in metallic materials. Plastic deformation of monocrystals and polycrystals. Hardening mechanisms. Recrystallization.

THERMAL PROPERTIES: Heat capacity. Thermal expansion. Thermal conductivity. Thermal stresses.

FLUENCE: Fluence mechanical behaviour. Tests, curves, mechanisms.

FATIGUE AND FRACTURE: Fragile and ductile fracture. Toughness. Fatigue behaviour of materials.

Mandatory literature

Lucas Silva; Comportamento mecânico dos materiais, Publindústria, 2012
Jones, D. R., & Ashby, M. F.; Engineering materials 1:An introduction to properties, applications and design, Butterworth-Heinemann, 2018
Silva, L. F. M.; Duarte, T. M. G. P.; Antunes, V. T. A.; Problemas e trabalhos práticos de metalurgia, Publindústria, 2016
Smith, W. F., & Hashemi, J.; Fundamentos de engenharia e ciência dos materiais, AMGH Editora, 2013

Complementary Bibliography

W., Callister; Ciência E Engenharia de Materiais: Uma Introdução, Grupo Gen-LTC. CALLISTER JR, W. D., 2000

Teaching methods and learning activities

The curricular unit works in the regime of two theoretical-practical classes per week with a duration of 2h each.
This typology of classes allows the teacher to present in the initial part the theoretical concepts, followed by practical exercises of application solved by the teacher and suggestion of similar exercises for students to solve autonomously.
This typology of classes presents the advantage of the absence of gaps between the presentation of theoretical concepts and their application in the resolution of practical problems.
Some experimental activities will be carried out during the semester, demonstrating and consolidating the fundamental concepts.
The attendance to the students by the teachers exists throughout the semester at a pre-established time. At the test times, the teachers offer more extensive periods of service on previous days.

Evaluation Type

Distributed evaluation without final exam

Assessment Components

Designation	Weight (%)
Teste	90,00
Trabalho laboratorial	10,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Estudo autónomo	98,00
Frequência das aulas	52,00
Trabalho laboratorial	12,00
Total:	162,00

Eligibility for exams

Not applicable.

Calculation formula of final grade

Two partial tests (November and January), with a weight of 45% each in the final classification (minimum score of 7.0
values in each). Experimental activities and their reports, with a weight of 10% (average of the reports) in the final classification.

Terms to students can access the resource (weight 90%) of the 1st and/or 2nd part:
- do not get the final grade of 10 values;
- do not get the minimum classification in one or two tests;
- have missed at least one of the evaluations (tests).

Approved students may access the resource if they wish to make grade improvement.

It is not possible to improve the classification of experimental activities.

Examinations or Special Assignments

Not applicable.

Internship work/project

Not applicable.

Special assessment (TE, DA, ...)

FEUP rules.

Classification improvement

FEUP rules.