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| Abstract No.: |
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Scheduled at:
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Thursday, May 05, 2022, Hall -2.32/33 10:00 AM
Metal Coatings I
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| Title: |
Amorphous metal coatings enabled by high-speed laser cladding technology
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| Authors: |
Tobias Stittgen* / ponticon GmbH, Germany
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| Abstract: |
The material class of metallic glasses/amorphous metals is continuosly receiving attention from various industry sectors. Due to the lack of grain boundaries, they exhibit outstanding corrosion resistance combined with high elasticity and mechanical strength. As high cooling rates when processing metallic glasses act in favor of an amorphous solidification, suitable manufacturing technologies are scarce and characterized by geometrical as well as metallurgical restrictions. The proposed contribution therefore sheds light onto a newly developed powder-laser-based cladding and AM technology build on the Directed Energy Deposition (DED-LB) principle. Introducing a high-speed DED-LB system enables precise control of the material's cooling rate for the first time. Based on this approach, coatings and manufacturing of bulk metallic glasses becomes feasible for industrial applications in areas suchs as hydrogen storage, consumer electronics and medical implants.
The proposed contribution covers the state of the art for processing bulk metallic glasses, available alloy systems, basics of the newly developed high-speed DED-LB process and an overview regarding the challenges to be overcome for widespread industrial applicationn.
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