Institute of Solid State Physics


SS22WS22SS23WS23SS24WS24      Guidelines for Master Students

The resolution-depth trade-off in steel component metrology using Synchrotron micro-CT
Aniket Tekawade
15:30 - 16:00 Tuesday 12 May 2020 

Video: https://drive.google.com/file/d/1fMfMQmU4R-l7ep4-9HghqRM0IH2CzU0H/view

Video Presentation:

Link to HD video:
https://drive.google.com/file/d/1fMfMQmU4R-l7ep4-9HghqRM0IH2CzU0H/view
Link to SD video:
https://drive.google.com/file/d/1uyQSsuczCcNnPuECivDGdUXMaRRdjENu/view

Synchrotron X-ray micro-CT can provide valuable insights through dimensional measurements of automotive fuel injectors. A case study is presented of micro-CT for such injector nozzles, with orifices in the 100-200 micrometer range. Synchrotron sources are highly collimated and brilliant, allowing for micrometer resolution but this resolution depends on achievement of acceptable signal-to-noise ratio which in turn is affected by the thickness of the steel injector sample. CTSegNet, an open-source toolkit developed in-house for tomographic data segmentation based in deep-learning provides automation for scalability while minimizing resolution-loss during post-processing even with low SNR (~ 3). This allows us to push the limitations on sample thickness. A regime map is shown comparing resolution-depth trade-off in synchrotron micro-CT as compared to benchtop micro-CT for steel samples. Micro-CT coupled with automated metrology workflows has several applications in the field of metal additive manufacturing, specifically for millimeter-sized components with micron-scale features.

At 16:00, there will be an opportunity to ask questions at https://tugraz.webex.com/meet/p.hadley