Ms Annie Andersson

I research nickel-based superalloys, which are the primary materials used for the high-temperature components of aero-engines. My research focuses on developing strategies to enhance dwell fatigue crack growth resistance in polycrystalline turbine disc alloys. I am particularly interested in how compositional variations and novel heat treatments can be used to control the microstructure and oxidation behaviour to improve properties. By understanding the interplay between environmental embrittlement and microstructural evolution, I aim to design next-generation alloys that offer improved durability and affordability for higher-temperature operation.

Techniques used: Metallographic preparation (precision cutting, mounting, grinding, and polishing), thermodynamic modeling (Thermo-Calc), computational alloy design, Scanning Electron Microscopy (BSE, EDX, and EBSD), X-ray diffraction (lab and synchrotron), and mechanical testing (including Electro-Thermal Mechanical Testing, ETMT).