| About this Abstract |
| Meeting |
2019 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Materials through High Resolution Imaging
|
| Presentation Title |
Multi-reflection Bragg Coherent Diffractive Imaging of Real-world Materials Samples |
| Author(s) |
Nicholas W. Phillips, Ross J. Harder, Wenjun Liu, Ruqing Xu, Gareth M. Hughes, James O. Douglas, Paul A.J. Bagot, Felix Hofmann |
| On-Site Speaker (Planned) |
Nicholas W. Phillips |
| Abstract Scope |
There is considerable need for development of methods that enable high resolution imaging of strain within 3D volumes. Multi-Reflection Bragg Coherent Diffractive Imaging (MBCDI) is a powerful X-ray tool to this end. Recovery of the full 3D lattice strain tensor is performed by the measurement of the displacement field from three or more reflections with non-collinear scattering vectors. However, the method is traditionally limited to samples with grain sizes below 1 μm. This has limited the suitability of the technique for many systems of interest within materials science. Recently developed sample fabrication protocols enable the study of real-world samples using MBCDI. We will present our recent results investigating the 3D lattice strain tensor in tungsten and nickel superalloy. The insight gained informs modelling approaches and enables a better understanding of the performance of these materials in real-life applications, which range from components of future fusion reactors to gas-turbine engines. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |