Research Landscape at the IPP and Introduction to the Topic
At the beginning of the meeting of the working group “Mechanical Surface Treatments” Prof. Rudolf Neu presented the research at the IPP, particularly in the field of fusion materials, and warmly welcomed the participants. This classification formed the framework for subsequent contributions and illustrated the close interconnection between materials development and fusion research. 

Broad Range of Topics on Superalloys and High-Temperature Behavior
A total of ten technical presentations addressed the topics of high-temperature materials and their mechanical behavior. The focus was particularly on classic materials such as nickel-based superalloys and tungsten materials for use in fusion reactors. In addition, new iron- and cobalt-based superalloys, the influence of hydrogen, additively manufactured titanium alloys, and the characterization of materials using high-energy X-ray diffraction were also discussed. The determination of elastic properties using resonance ultrasonic spectroscopy was also discussed. A highlight of the event was the presentation by Dr. Johann Riesch, who provided deeper insights into novel “tungsten fiber-reinforced tungsten composites.” 

Outlook and Synergies With MSE 2026
Following the presentations, the working group discussed its next steps as well as the location and date of its next meeting, which is expected to take place in early October 2026. 

Dr. Neumeier also provided information about the two symposia on “Metallic High Temperature Materials for Structural Applications” and “Materials for Plasma Facing Components in Future Fusion Reactors,” which will take place at MSE 2026 and are sure to be of great interest to the working group participants. 

Insights Into the Research Facilities of the IPP
A tour of the IPP rounded off the day. During the tour, participants had the opportunity to gain interesting insights into the ASDEX Upgrade experimental facility for the development of fusion reactors (see photo), the GLADIS heat flux test stand, and the tandem accelerator. 

The DGM office would like to thank the IPP in Garching, and in particular Dr. Daniel Dickes and Prof. Rudolf Neu for their hospitality, as well as PD Dr. Neumeier for the successful organization.