Effect of processing on structure and properties of aluminium alloys with the elements from reduced deep-sea nodules – POSTER

Tsepeleva Alisa - University of Chemical Technology in Prague (Czech Republic)

The alloying of pure aluminum with a reduction product of manganese-based deep-sea concretion brings a new type of aluminum alloy to research. In order to investigate the structural and phase changes, the originally cast samples of our alloys were subjected to a set of modern powder metallurgy operations. At the beginning of the work, thin metal ribbons were prepared by rapid solidification technology, which were further processed by milling in cryogenic atmosphere and spark plasma sintering. The microstructure, phase and chemical composition of the alloys were described and their tribological properties were measured. The mechanical properties of the obtained materials were tested by compression and bending tests. The response of the alloys to thermal stress was tested by performing a thermal stability test and quantitatively evaluated by measuring the hardness before and after test.

This research was financially supported by Czech Science Foundation, project No. 20-15217S.

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