Corrosão e Protecção de Materiais
Description
Objectives
The student should identify a corrosion process, distinguishing the different types of corrosion and the most relevant corrosive media, evaluating the extension and severity of the corrosive process (thus predict the lifetime of a component ) and implementing the adequate strategy for corrosion protection
Syllabus
1. Social and economic importance of corrosion; the electrochemistry of corrosion; corrosion thermodynamics and kinetics. 2. Passivation. 3. Types of corrosion: uniform corrosion; pitting corrosion; crevice corrosion; filiform corrosion; galvanic corrosion; selective leaching; intergranular corrosion; biologically induced corrosion; environmentally induced cracking (stress corrosion cracking, corrosion fatigue, fretting corrosion, erosion corrosion, cavitation corrosion and hydrogen embrittlement).Degradation of ceramics and polymers. 4. Corrosion in different media: atmospheric corrosion, corrosion in waters, in soils, concrete, … 5. Corrosion monitoring: natural exposure; accelerated tests; electrochemical methods.. 6. Corrosion protection: selection of materials, design principles, corrosion inhibitors, cathodic protection and anodic protection; coatings (surface preparation, organic coatings,metallic and non-metallic inorganic coatings).
Prerequisites
No suggested prerequisites
Cross Competence Component
Several strands of soft skills will be explored in this UC First of all, its objectives focus on the corrosion of materials, which implies taking into account issues of global citizenship in particular social and civic responsibility, especially in the evaluation and management of the life cycle of materials. On the other hand, in the laboratory component, students, in groups, will work in a laboratory environment and develop written reports. In this component, several skills will be developed and evaluated: intrapersonal skills (productivity and time management, in the development of the theme and in its presentation), interpersonal (oral communication, teamwork and leadership) and skills of information and media literacy (search and management of information, structuring and formatting of reports and presentations). Thus, the weight of soft skills will correspond, at least, to 20% of UC ECTS, i.e. 0.6 ECTS.
Laboratorial Component
Laboratory classes will involve a number of experimental work on corrosion principles, on different materials and in several simulated conditions. If feasible, remote access to lab facilities will be foreseen. The students will perform the practical work along the quarter, organized in groups, and will write one or more reports. The laboratory component accounts for 30% of the total evaluation of the student.
Programming And Computing Component
Ethical Principles
All members of a group are responsible for the group´s work. In any assessment, every student shall honestly disclose any help received and sources used. In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.