Fundamental study of multi-track friction surfacing deposits for dissimilar aluminum alloys with application to additive manufacturing
نویسندگان
چکیده
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 fine-grained recrystallized microstructure temperatures below melting point. The generation sound, defect-free metallurgical joints between multiple adjacent overlapping friction deposits, also referred as multi-track surfacing, from dissimilar aluminum alloys focus this experimental work. An extensive volumetric defect analysis carried out for various overlap configurations, including post-processing strategies in order assess inter-track bonding integrity using microscopic characterization techniques and micro-computed tomography. effect layer arrangement distance formation both layer-to-substrate interface quantified discussed. Post-processing via hybrid diffusion process demonstrates significant reduction volume ratio, proving higher material efficiency. gained knowledge was used successfully build multi-layer stack, demonstrating suitability large-scale additive manufacturing components. subsequent mechanical reveals excellent homogeneous isotropic tensile properties structure range base strength.
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ژورنال
عنوان ژورنال: Materials & Design
سال: 2022
ISSN: ['1873-4197', '0264-1275']
DOI: https://doi.org/10.1016/j.matdes.2022.110786