Nichteisenmetallurgie, Nichteisen, Nichteisenmetalurgie, Metalurgie, Montan, Montanuni, Montanuniversität, Leoben, Metallurgie, Helmut Antrekowitsch, Stefan Pogatscher, Jürgen Antrekowitsch, Stefan Luidold, Stefan Steinlechner, Recyclingtechnik Leoben
Dipl.-Ing.

Patrick Willenshofer

Focus

• Materials engineering of aluminum
• Investigation of the radiation resistance of Al alloys
• Process development: conventional production and nanocrystalline alloys
• Development of a better combination of strength and conductivity of Al alloys in overhead line technology

Contact

Education/Professional experience

2007–2012Higher Technical Education Institute (HTL) Kapfenberg / education focus on Electrical engineering
2013–2019Bachelor’s degree program in Metallurgy, University of Leoben, Austria (BSc)
2019–2020Master’s degree program in Metallurgy, University of Leoben, Austria, with focus on Nonferrous Metallurgy and Metallic Materials
2020Graduation (Dipl.-Ing.)
Topic: Optimisation of the combination of strength and conductivity of Al alloys in overhead line technology
2020–presentPhD student and research associate at Institute of Nonferrous Metallurgy, University of Leoben, Austria

Dissertation

Titel: Radiation resistant Al alloys for space applications

In order to reduce CO2 emissions, aluminum and its alloys are increasingly in the focus of attention in lightweight automotive construction. To improve the recyclability of aluminum, so-called “crossover alloys” have been developed. By mixing AlMg (5xxx) with AlZnMg (7xxx) alloy classes, the novel alloys are age-hardenable through precipitation of T-phase (Mg32(Al,Zn)49) and the advantageous properties of both classes are combined. Recent research results showed the irradiation-resistance of the T-phase.

This research investigates the relationship between microstructure and mechanical properties by different heat treatment strategies and, on the other hand, the precipitation sequence of T-phase using differential scanning calorimetry. In addition, two different approaches of manufacturing are investigated: conventional production of the alloy by hot and cold rolling and severe plastic deformation to produce a nanocrystalline microstructure by high pressure torsion (HPT).