Corrosion and Damage Analysis

11B0252

Bachelor

German

5.0

only winter term

1 semester

Reclamation processes are part of everyday working life for both materials technologists and dental technologists. The application-related changes in and to the technical materials can lead to an unwanted reduction in performance or to the failure of constructions, machines and other technical objects. Metals for components in various applications, but also dental prostheses, are exposed to particular corrosive and/or erosive stresses due to the daily chewing loads in the ‘biotope’ of the oral cavity. Knowledge of the electrochemical prerequisites for corrosion processes and the formation of different corrosion elements and erosion processes, as well as their correlation with the microstructure of a material, is of great importance for the utilisation of technical products and constructions.

Understanding and interpreting the damage caused and the failure of components of different material classes helps to extend the service life of products, systems and devices and to avoid faults in the future. Furthermore, optimised materials can be developed with the help of knowledge about the causes and conditions of damage and how to prevent it.

Corrosion
1.1 Basic laws of corrosion, hydrogen and oxygen corrosion, inter- and transcrystalline corrosion, localised elements
1.2 Manifestations of corrosion, passivity of metals
1.3 Reactions in corrosive media and ageing phenomena on ceramics
1.4 Ageing phenomena on plastics
1.5 Corrosion test methods and standards for the various material classes

Failure analysis
2.1 Fracture behaviour and types
2.2 Influence of surface properties on failure
2.3 Tribological systems
2.4 Recognising and evaluating fractures and classifying damage
2.4 Systematic processing of damage, preparation of expert reports

The total workload for the module is 150 hours (see also "ECTS credit points and grading").

• Written examination

• Field work / Experimental work

• Written exam: According to the valid study regulations
• Experimental work: According to the scope of the laboratory activities

Basic knowledge of chemistry, physics, materials engineering, basic knowledge of materials, e.g. metallurgy, glass and ceramics. Furthermore, knowledge in the field of material and product analysis is recommended, as analytical techniques must be selected independently and in some cases also applied.

Students at Osnabrück University of Applied Sciences who have successfully completed this course,

- will be able to describe and differentiate between basic electrochemical processes.
- will be able to explain many practical corrosion and erosion phenomena from everyday life.
- will be able to recognise and interpret basic types of fracture and fracture behaviour.

On completion of the course, students will have in-depth knowledge in the field of damage detection and claims processing.

After completing the course, students will be able to systematically analyse and describe basic electrochemical processes. Additionally, based on an analysis of environmental conditions and loading factors, they can propose suitable corrosion-resistant materials and corrosion protection measures. Basic types of fracture and fracture behaviour are recognised and interpreted. Erosion and corrosion-related surface damage can be identified. Damage cases are analysed using material science and mathematical methods and corresponding reports on the findings are prepared.

On completion of the module, students will be able to predict the different types of failure, as well as the resulting failure patterns, and will be able to determine the reasons for failure. Furthermore, corrosion-resistant solutions can be developed depending on the application.

On completion of the module, students will be able to carry out analyses and measurements for selected cases of damage and prepare, present and discuss the results.

They can identify suitable protective measures and recommend or develop suitable investigation methods with regard to technical challenges and discuss economic implications.

• Strickstrock, Monika

• Mola, Javad
• Strickstrock, Monika