Lecturers

Prof. Dr.-Ing. Alexander Kauffmann
Prof. Dr. rer. nat. Gerhard Dehm

Data

Lecture no.: 136330
Semester: Summer Term
Language: German
Event type: Lecture with Exercise
Contact hours: 4
Credit points: 5
Programs:

• B.Sc. Materials Science and Engineering, Specialization Experimental Materials Science
• B.Sc. Mechanical Engineering, Specialization Materials and Microengineering
• B.Sc. Mechanical Engineering, Specialization Modeling and Simulation of Mechanical Systems
• B.Sc. Sales Engineering and Product Management, Specialization Materials and Microengineering

Description

In this lecture, you become familiar with fundamental aspects of materials science, exploring the structure and microstructure of materials and their impact on material properties across all length scales.

Atomistic aspects such as atomic bonds and thermodynamic principles for describing materials are discussed in the beginning. These principles allow insights into phase diagrams and the driving forces of phase transformations, which are employed to adjust material properties in engineering. The description of the temporal progress of such phase transformations is based on the movement of atoms in the solid state, i.e. diffusion, which is introduced as well. During manufacturing and processing of materials, a variety of crystal defects are generated that significantly influence mechanical and functional properties. Therefore, crystal defects such as vacancies, dislocations, and grain boundaries are systematically introduced and characterized using examples. In the second part, the determining processes in materials under mechanical stress are discussed, including deformation behavior based on stress-strain curves, deformation at high temperatures, under fatigue or wear conditions, and in small dimensions. These phenomena are linked to the mechanisms of material and microstructure formation in the lecture.

For each lecture, materials are available for download, which also include references to helpful literature for self-study. The integrated exercises prepare optimally for the exam by addressing similar questions.