Materials Science

Code:

EMM0028

Acronym:

CMAT

Keywords
Classification	Keyword
OFICIAL	Science and Technology of Materials

Instance: 2018/2019 - 2S

Active?	Yes
Responsible unit:	Department of Metallurgical and Materials Engineering
Course/CS Responsible:	Master in Metallurgical and Materials Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEMM	36	Syllabus since 2006/2007	3	-	6	56	162

Teaching language

Portuguese

Objectives

Material Science aims the understanding of the relationships between structure and properties of engineering materials, providing the scientific basis to the selection of materials, as well as for, the development of new materials. Manipulation of microstructure, through modification of chemical composition, processing techniques and/or heat treating, has been used to develop new materials and modify conventional ones. This knowledge is essential for the material engineer to produce materials to operate in adverse conditions with improved performance.

The main objective of this course unit is to explore the scientific basis of material science; providing the students with the understanding of the relationship between structure, processing and properties of engineering materials. The most relevant techniques to structure modification and properties improvement are presented.

Learning outcomes and competences

With this course unit students are expected to:

1) understand how materials properties are affected by recovery, recristalization and grain growth;

2) acquire the scientific basis of diffusion, being able to apply it to real cases;

3) understand how diffusion enables changes in the chemical distribution and microstructure of materials and the role of driving force on solidification and solid state transformations;

4) discuss a variety of hardening mechanisms and relate them with known examples of high strength materials, being able to develop strategies for processing higher strength alloys; 5) develop group work skills, through the organization and task distribution that will enable to successfully conclude the laboratory work;

6) improve skills in oral and written communication.

Working method

Presencial

Program

Diffusion: Fick laws and solutions for some typical cases in materials sciences; atomic diffusion mechanisms; variables affecting diffusion, Kirkendall effect. Recovery, recrystallization and grain growth. Solidification: homogeneous and heterogeneous nucleation; pure metals and alloys solidification; defects and casting structure. Solid state phase transformations: nucleation; growth; microstructures; kinetics. Hardening mechanisms: strain hardening; grain boundaries; solid solution; second phase; precipitation (thermal cycle, precipitation sequence, mechanical properties).

Mandatory literature

D.A. Porter, K.A. Easterling, M.Y. Sherif; Phase Transformations in Metals and Alloys , CRC Press, 2009. ISBN: SBN: 978-1-4200-6210-6
Smallman, R. E.; Modern Physical Metallurgy. ISBN: 0-408-71051-9

Complementary Bibliography

Cahn, Robert W.; Physical metallurgy. ISBN: 0-444-89875-1

Comments from the literature

The bibliography is complemented with teacher presentations.A bibliogarfia é complementada com apresentaçãoes

Teaching methods and learning activities

Lectures followed by discussion of cases of industrial application. Solving problems in small groups of students. Laboratory classes: groups of students form teams to work on one of the proposed topics, from the design of the experiment to its implementation and analysis of results. Oral presentation and discussion of a written report.

keywords

Technological sciences > Engineering > Mechanical engineering > Metalurgia Metallurgy
Technological sciences > Technology > Materials technology
Technological sciences > Engineering > Materials engineering

Evaluation Type

Distributed evaluation without final exam

Assessment Components

Designation	Weight (%)
Teste	60,00
Trabalho laboratorial	40,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Elaboração de relatório/dissertação/tese	36,00
Estudo autónomo	48,00
Frequência das aulas	56,00
Trabalho laboratorial	20,00
Total:	160,00

Eligibility for exams

The number of classes absences not exceed 1/4 of the total number of classes.

Execution of a teamwork, final report and oral presentation.

Calculation formula of final grade

Final grade= 0.4 of the report classification + 0.6 of the average test classification

Special assessment (TE, DA, ...)

Written exam and a laboratory work report.

Classification improvement

Students may improve the tests classification in a final exam.