2026-10-08T23:00:56Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33972418 2026-09-25T13:17:50Z category_26650 portal_615 item_type_3 month_year_09_2026

Micro-CT scans of additively manufactured AlSi10Mg cylinders Tebogo Martina Ledwaba (25095358) Additive manufacturing lack of fusion defect keyhole porosity Laser defocusing X-ray tomogaphy parameter optimization experiments wiper blade <p dir="ltr">This dataset contains three independent original micro-CT scans of AlSi10Mg cylinders fabricated using powder bed fusion using a laser beam (PBF-LB). All three cylinders were fabricated using the same process parameters, which are: scanning speed of 1250 mm/s, hatch distance of 150 µm, and layer thickness of 50 µm. The difference is that batches 1 and 2 were fabricated with a focused beam, while batch 3 was fabricated with a negative laser beam defocus. Additionally, a stainless steel wiper blade was used for batch 1, whereas a carbon fiber wiper blade was used for batches 2 and 3. The micro-CT scans reveal defect conditions in these samples. In particular, micro-CT-based porosity analysis enables a deeper understanding of the effects of different parameters in PBF-LB fabrication of AlSi10Mg.</p><p dir="ltr">All details of this dataset are provided in the associated thesis (Title: Imaging and image enhancement of additive manufacturing defects) and manuscript (Title: Porosity reduction in laser powder bed fusion of AlSi10Mg through laser beam defocusing). Citation of the mentioned paper and thesis is encouraged when using this data.</p> 2026-09-25T13:17:50Z Dataset Dataset 10.25413/sun.33972418.v1 https://figshare.com/articles/dataset/Micro-CT_scans_of_additively_manufactured_AlSi10Mg_cylinders/33972418 CC BY 4.0