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|Fundamental study of multi-track friction surfacing deposits for dissimilar aluminum alloys with application to additive manufacturing
|Soujon, Malte (Institut für Produktionstechnik und -systeme (IPTS), Leuphana Universität Lüneburg 02w2y2t16)
Kallien, Zina 0009-0003-5133-0624 (Helmholtz-Zentrum Hereon 03qjp1d79)
Roos, Arne (Helmholtz-Zentrum Hereon 03qjp1d79)
Zeller-Plumhoff, Berit 0000-0002-7562-9423 (Helmholtz-Zentrum Hereon 03qjp1d79)
Klusemann, Benjamin 0000-0002-8516-5087 (Institut für Produktionstechnik und -systeme (IPTS), Leuphana Universität Lüneburg 02w2y2t16)
|Friction surfacing is an emerging solid-state coating technology based on frictional heat induced plastic deformation at the tip of a consumable metallic stud that allows to deposit layers with a fine-grained recrystallized microstructure at temperatures below the melting point. The generation of sound, defect-free metallurgical joints between multiple adjacent overlapping friction surfacing deposits, also referred to as multi-track friction surfacing, from dissimilar aluminum alloys is the focus of this experimental work. An extensive volumetric defect analysis is carried out for various overlap configurations, including post-processing strategies in order to assess the inter-track bonding integrity using microscopic characterization techniques and micro-computed tomography. The effect of layer arrangement and overlap distance on the volumetric defect formation in both inter-track and layer-to-substrate interface is quantified and discussed. Post-processing via hybrid friction diffusion bonding process demonstrates a significant reduction in defect volume ratio, proving higher material efficiency. The gained knowledge was used to successfully build a multi-track multi-layer friction surfacing stack, demonstrating the suitability of this process for large-scale additive manufacturing components. The subsequent mechanical analysis reveals excellent homogeneous isotropic tensile properties of the additive structure in the range of the base material tensile strength.
|Multi-track friction surfacing; Hybrid friction diffusion bonding; microCT; Defect analysis; Tensile properties; Additive manufacturing
|Year of Publication in PubData
|Medien- und Informationszentrum, Leuphana Universität Lüneburg
Information regarding first publication
|Title of the resource type
|Materials and Design
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