After successful completion of the course, students are able to understand why certain materials are suitable for specific applications. What is the requirement profile (for example in turbine engines) and how can materials be improved to that effect. The students will have an overview of the variety of engineering materials for the realization of technical products. You will understand that the properties of engineering materials are essentially determined by their composition, manufacturing process and processing.
The students will understand the structure of various materials (metals, ceramics, polymers) and their important mechanical, thermal and magnetic properties. You will also understand that especially the temperature control during the solidification of alloys can lead to special forms of crystallites and microstructures. The focus of the metallic materials is on special steels, Al, Ti, Ni alloys, refractory metals and amorphous metals. Furthermore, ceramic materials and polymers are discussed.
At the beginning, the "Strength Increasing Mechanisms" will be reviewed and "Thermal Stability" will be discussed in terms of recovery, recrystallization, creep, as well as oxidation. Some magnetic materials and their applications are also covered. Using "Casting of Metallic Alloys" as an example, we will discuss how and why solidification processes and crystal growth affect microstructure and associated properties.
With the help of special steels, Al, Ti, Ni alloys (including shape memory alloys), refractory metals, amorphous metals, as well as hard metals and ceramic materials, the principles previously gone through are analyzed on real alloy developments and application cases. In addition, Mg, Cu and Co alloys are also briefly discussed.
Systematics of engineering plastics (high temperature plastics, shape memory polymers, composites).
Discussion of case studies and exercises.
The lecture will be given in German OR English:
Thursdays (13:00 - 15:00 Uhr, Radinger HS).
Both parts of the exam (written and oral) need to be positive (>50 %).
During the lecture, it is possible to take part on the offered small tests. These are announced during the lecture. The points obtained will be added to the points of the written exam, if the exam is performed within the same year of study and at least 50% are obtained for the written part. It is not possible to worsen the result of the exam by taking part at the small tests.
The exams, written or oral, are based on the script.
Oral part: The oral exam is mandatory if the written part was between 50 and 55%, or if major sections of the written exam were below 50%. From the 3rd examination-entrance onward, an oral examination is always required for a positive assessment. Typically, the oral part is 1-3 weeks after the written part. Procedure: 1h per group of 4-5 students (online or in the BE building 4. floor). The subject matters of the oral part are the metallic and ceramic materials.
Covid-specific: Written exams are held as attendance exams, if permitted. If not allowed, online exams (via zoom) will take place on the dates indicated. Details will follow a few days before the respective exam dates. In any case, please register in time for the desired dates and consider the coditions given in TUWEL.
A script is available (in color) for the part of the lecture "Engineering Materials" which deals with metallic and ceramic materials. It also lists the books recommended for this.A script is also available for the polymer materials part. The following book is also recommended for this purpose: "Hochleistungs-Kunststoffe", L. Bottenbruch (Ed.), Hanser, Munich 1994.The individual scripts are available from the institute's secretariat (9 a.m. to 12 p.m. and 1 p.m. to 5 p.m.), Getreidemarkt 9 (building BE, 4th floor).
Materials science of metallic materials
