Requirements Completed university studies (PhD) in the field of Materials Science, Materials Engineering, Physics, Nuclear Engineering or a comparable field Sound knowledge in materials characterization (microstructure, mechanical properties), ideally with experience in TEM/STEM and nanoindentation Practical experience or strong interest in ion irradiation and in studying irradiation-induced effects such as hardening, swelling, and embrittlement Familiarity with additively manufactured materials knowledge in fracture mechanics and creep experiments is desirable experience in coordinating scientific work and project management is a plus willingness to provide academic supervision to doctoral students strong team spirit in interdisciplinary research collaborations independent, structured, and solution-oriented way of working scientific curiosity and openness to new challenges strong communication skills and willingness to collaborate with internal and external partners enjoyment in working on complex scientific questions and implementing them experimentally confident use of scientific software (exempli gratia gatan digitalmicrograph, python, origin, matlab, srim/trim) solid skills in scientific data analysis and statistical evaluation good command of ms office and reference management tools (exempli gratia zotero, endnote) excellent written and spoken english, german skills desirable willingness to present research results at national and international conferences

As part of an interdisciplinary research project, we aim to assess whether additively manufactured variants of ferritic/martensitic steels meet the demanding requirements for use in fusion applications. The focus is on evaluating the irradiation tolerance. Ion irradiations using iron (Fe) and helium (He) ions are employed to simulate fusion-relevant damage mechanisms. The objective is to experimentally replicate effects such as hardening, embrittlement, and swelling, and to clarify their dependence on the microstructure induced by the manufacturing process. Tasks Design, execution, and evaluation of ion irradiation experiments to simulate damage phenomena typical of fusion environments Post-irradiation investigations using transmission electron microscopy (TEM/STEM) and nanoindentation Analysis of the interaction between additive manufacturing-induced microstructure, irradiation damage, and mechanical properties Literature research, data analysis, and development of scientific concepts Coordination of supplementary mechanical testing (e.g. fracture mechanics, small punch tests) and subcontracted experiments (e.g. creep testing) Supervision of a PhD student within the project team Documentation and publication of results in peer-reviewed journals and presentations at scientific conferences