| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Quantifying Microstructure Heterogeneity for Qualification of Additively Manufactured Materials
|
| Presentation Title |
Quantitative Analysis of Computed Tomography Characterization of Porosity in AM Ti64 Using Serial Sectioning Ground Truth |
| Author(s) |
Bryce R. Jolley, Christine Henry, Michael Uchic, Daniel Sparkman |
| On-Site Speaker (Planned) |
Bryce R. Jolley |
| Abstract Scope |
X-Ray Computed Tomography is widely-used for nondestructive characterization of porosity in Additively Manufactured parts. However, many factors can affect the accuracy of computer-based analysis of porosity from XCT data, including the XCT instrumentation settings, the choice of XCT reconstruction algorithms, and the segmentation and quantification metric(s) chosen. This presentation explores XCT porosity-characterization workflows for a 10 mm diameter cylindrical Ti-64 sample manufactured by laser powder bed fusion. The sample was characterized using four different XCT systems to explore the sensitivity to the XCT experimental, reconstruction, and segmentation workflows, after which automated serial sectioning was employed to estimate the true internal porosity distribution within a 2 mm thick subregion of the cylinder with ~2 micrometer spatial resolution. Notably, titanium alloy ball bearings were adhered to the sample (prior to XCT and serial sectioning characterization) to facilitate registration of the multi-modal datasets. Both global and local analysis of the porosity were made. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |