Surface Engineering

Recommended Prerequisites

knowledge of Structure and Properties of Materials, Materials Science and Engineering.

Teaching Methods

In a first part of the course the procedure to performing the materials selection is presented. In this phase, theoretical courses are complemented with theoretical-practical classes where specific examples of each step of selection procedure are taught to the students. The students are also invited to develop the resolution of the practical problems which are briefly solved in the text book. 

Some study visits will be done that will culminate with the presentation of written reports.

Learning Outcomes

The course has the main objective of forming students in the most different variants of the surface modification technologies for improving wear and corrosion behaviour of materials. 

This course intends to supply the student with the ability to:

– select the best procedure for surface modification in order to achieve the envisaged objectives considering not only technical problems but also processing costs.

 – achieve a basic knowledge level about surface modification technologies which allow the students to easily access future detailed information about each one.

– be motivated for new techiques with potential to be developed worldwide.

– analyse and understand the main phenomena intervening on the degradation of materials, mainly those related with wear and corrosion

– understand the importance of the technologies of surfasse modification to avoid and control the problems created by the degradation of materials.

Work Placement(s)

No

Syllabus

1. Introduction and motivation – modification of surfaces; advantages and inconveniences; economic aspects.

2. Surface modification processes – with and without chemical composition; coating (atomic deposition; particle deposition; diffusion; solid coatings); selecting a coating technology; main steps of the deposition process; fields of application.

3. Surface treatment for tribological applications – mechanic, thermal, by superficial fusion, thermochemical (carburizing, nitriding and carbonitriding), ion implantation, chemical treatment, welding, plasma processes, CVD, PVD.

4. Cathodic pulverization: reactive cathodic pulverization; residual tensions; adhesion.

5. Growth and deposition of coatings – nucleation / structure; chemical composition; morphology.

6. Tear – main types; assessment methods; tear mechanisms.

7. Corrosion – corrosion from an electrochemical perspective; main types and prevention methods.

Head Lecturer(s)

Bruno Miguel Quelhas de Sacadura Cabral Trindade

Assessment Methods

Assessment
Report of a seminar or field trip: 30.0%
Frequency: 70.0%

Bibliography

Review and regular scientific and technical papers on Surface Modification Technologies

Slides of classes