Materials Degradation

Code:

EMM0025

Acronym:

DMAT

Keywords
Classification	Keyword
OFICIAL	Science and Technology of Materials

Instance: 2009/2010 - 1S

Active?	Yes
Responsible unit:	Materials Section
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	32	Syllabus since 2006/2007	3	-	6	42	162

Teaching language

Suitable for English-speaking students

Objectives

JUSTIFICATION:
There is nowadays a wide range of materials available for the project of parts and equipment. However, the risk of loss of functionality, related to degradation of the original properties, should be considered in the project phase. To note that the loss of functionality of the equipment often involves important costs to the campanies and even environmental pollution and risk to the workers.

OBJECTIVES:
The course is focused on the interaction between the materials and their environment, with an emphasis in the cases where this interactions put at risk the integrity of the equipment. Essentially and most important, the student must develop the sensibility to evaluate the possible consequences of the contact of a given material (mainly metals or polymers) with the environment where it will be exposed

COMPETENCES AND LEARNING OUTPUTS:
- integration of the already acquired knowledge from several areas and its application to the resolution of engineering oriented problems.
- ability to identify the problems and plan the investigation to solve them.
- development of team work skills

Program

Introduction
- What is the corrosion ?
- Costs of corrosion
- Consequences of corrosion

- Revision of the fundamental electrochemistry concepts

The Pourbaix Diagrams
- Principles
-Applications

Metallic Corrosion
- Uniform corrosion
- Galvanic corrosion
- Crevice corrosion
- Pitting Corrosion
- Intergranular corrosion
- Erosion
- Cavitation

The mixed Potentials theory

Passivation: the good side of corrosion

Corrosion prevention
- Anodic protection
- Cathodic protection

High temperature metallic corrosion

Polymers Degradation

Ceramics degradation

Mandatory literature

Fontana, Mars G.; Corrosion engineering. ISBN: 0-07-100360-6
Scott, Gerald 340; Degradable polymers. ISBN: 0-412-59010-7
Pourbaix, Marcel; Atlas of Electrochemical Equilibria in Aqueous Soluctions
Bockris, J. O.M; Modern electrochemistry. ISBN: 0-306-46167-6 (vol. 2A)

Teaching methods and learning activities

The subjecst are presented and discussed with the students, incorporating industrial examples whenever appropriate. In the lab sessions the students carry out a series of set experimental works and a small research project.

keywords

Technological sciences > Engineering > Materials engineering
Physical sciences > Chemistry

Evaluation Type

Evaluation with final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Subject Classes	Participação presencial	42,00
laboratory work	Trabalho laboratorial	30,00		2010-02-05
reports	Defesa pública de dissertação, de relatório de projeto ou estágio, ou de tese	30,00		2010-02-12
homework	Trabalho escrito	60,00		2010-02-11
	Total:	-	0,00

Eligibility for exams

The student must have a positive grade (equal to or higher than 10 in 20) in the laboratory sessions.

Calculation formula of final grade

Final Grade = 0.75*NEF + 0.25*NTG

NEF: grade on the final exam. It should not be bellow 7.5 in a 20 scale

NTG: grade for the group small lab. project. The grades will be individual and each group element will be evaluated for the work developed during the semester + final report

Examinations or Special Assignments

Students who, for legal reasons, cannot attend the laboratory sessions have to carry out an experimental work in a special exam.

Special assessment (TE, DA, ...)

As approved by the Faculty of Engineering for all the courses.

Classification improvement

As approved by the Faculty of Engineering for all the courses.

Observations

Not applicable.