Time resolved in-situ multi-contrast X-ray imaging of melting in metals.

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 ch

SUBMITTER: Massimi L 

PROVIDER: S-EPMC9287332 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature