Massimi, L;
Clark, SJ;
Marussi, S;
Doherty, A;
Shah, SM;
Schulz, J;
Marathe, S;
... Olivo, A; + view all
(2022)
Time resolved in-situ multi-contrast X-ray imaging of melting in metals.
Scientific Reports
, 12
, Article 12136. 10.1038/s41598-022-15501-2.
Preview |
Text
Olivo_s41598-022-15501-2.pdf Download (2MB) | Preview |
Abstract
In this work, the application of a time resolved multi-contrast beam tracking technique to the investigation of the melting and solidification process in metals is presented. The use of such a technique allows retrieval of three contrast channels, transmission, refraction and dark-field, with millisecond time resolution. We investigated different melting conditions to characterize, at a proof-of-concept level, the features visible in each of the contrast channels. We found that the phase contrast channel provides a superior visibility of the density variations, allowing the liquid metal pool to be clearly distinguished. Refraction and dark-field were found to highlight surface roughness formed during solidification. This work demonstrates that the availability of the additional contrast channels provided by multi-contrast X-ray imaging delivers additional information, also when imaging high atomic number specimens with a significant absorption.
| Type: | Article |
|---|---|
| Title: | Time resolved in-situ multi-contrast X-ray imaging of melting in metals |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s41598-022-15501-2 |
| Publisher version: | https://doi.org/10.1038/s41598-022-15501-2 |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| Keywords: | Applied physics, Imaging techniques |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10151195 |
Archive Staff Only
 |
View Item |
