Calibrated X-ray computed tomography for testing micro-scale pore defect in metallic powder particles for additive manufacturing

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Calibrated X-ray computed tomography for testing micro-scale pore defect in metallic powder particles for additive manufacturing
Title:
Calibrated X-ray computed tomography for testing micro-scale pore defect in metallic powder particles for additive manufacturing
Journal Title:
Measurement: Sensors
Publication Date:
20 September 2021
Citation:
Wang, S., & Xu, B. (2021). Calibrated X-ray computed tomography for testing micro-scale pore defect in metallic powder particles for additive manufacturing. Measurement: Sensors, 18, 100110. https://doi.org/10.1016/j.measen.2021.100110
Abstract:
In this paper, a non-destructive X-ray computed tomography (XCT) was introduced to measure hidden pore defects inside metallic powder used in additive manufacturing. The internally hidden pores were found to have sizes ranging from 10 μm to 30 μm within those powder particles (size: up to 100 μm). Corresponding porosity in four (4) different metallic powders were determined to be about 0.11% for Inconel 718, 0.02% for virgin Inconel 625, 0.31% for Recycled Inconel 625 and 0.03% for Stainless steel 316 powder materials. It demonstrated that the proposed XCT is applicable to determine the porosity of the powder particles.
License type:
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Funding Info:
This research / project is supported by the SERC A*STAR - RIE2020 Advanced Manufacturing and Engineering (AME) Industry Alignment Fund-Pre Positioning
Grant Reference no. : A19E1a0097
Description:
ISSN:
2665-9174