Regensburg 2022 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 16: Mechanical Properties

MM 16.1: Talk

Tuesday, September 6, 2022, 14:00–14:15, H44

co-electrodeposition of compositionally complex co-cr-fe-mo-ni alloy thin films — •hongshuai li, martin peterlechner, and gerhard wilde — Institute of Materials Physics, University of Münster, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany

Co-Cr-Fe-Mo-Ni, a compositionally complex alloy with a face-centered cubic structure, was successfully obtained by electrochemical deposition. To achieve a smooth morphology, an aqueous electrolyte with several additives was used as the solution for electrodeposition. Since the characterization of the sample requires a certain thickness, the electrodeposition time was set to 10 min. Characterization of the film deposited under a constant current density reveals the deposit is metallic with a face-centered cubic structure. The adhesion properties as well as the effective mechanical performance have also been tested by nano-scratch experiments, indicating a microscopically ductile behavior. The electrolytes developed in this study may be a promising approach for the electrodeposition of Co-Cr-Fe-Mo-Ni medium entropy alloys.