The focus of this working group is on the qualification of suitable methods for efficient damage characterization. From the very beginning of their research, the projects of project area A rely on having at least a qualitative characterization of damage states. The same applies to the determination of the degree of purity of the materials in the initial state. Due to the large number of characterizations, these are distributed among the projects involved. In order to achieve a consistent approach within TRR 188 and, accordingly, a comparability of the results of different projects, a standardization of the approach within TRR 188 is indispensable. Project area A depends on the expertise of project area B.

The methods of light microscopic and scanning electron microscopic examinations already described serve as a basis. Therefore, a consistent approach for gathering damage conditions for each material is coordinated by the working group on "Efficient damage characterization" (within the scope of B02 and in cooperation with project area A and B) at the beginning of TRR 188. This approach will be tested by round robin tests. The implementation of the characterizations in the individual subprojects is coordinated by the working group.

Subsequently, the methods mentioned above are to be further developed within the framework of this working group with the aim of obtaining an efficient damage quantification. This can also be done by means of indirect measuring methods such as electrical potential measurements or temperature measurements. The new methods to be developed represent an important milestone and an innovation of the TRR 188.

Group leader
Project B02
Carl F. Kusche M. Sc.
Institute of Physical Metallurgy and Metal Physics (IMM), RWTH Aachen University