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

Massimi, Lorenzo ; Clark, Samuel J ; Marussi, Sebastian ; Doherty, Adam ; Shah, Saurabh M ; Schulz, Joachim ; Marathe, Shashidhara ; Rau, Christoph ; Endrizzi, Marco ; Lee, Peter D ; Olivo, Alessandro

Scientific reports, 2022-07, Vol.12 (1), p.12136-12136, Article 12136 [Periódico revisado por pares]

London: Nature Publishing Group

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  • Título:
    Time resolved in-situ multi-contrast X-ray imaging of melting in metals
  • Autor: Massimi, Lorenzo ; Clark, Samuel J ; Marussi, Sebastian ; Doherty, Adam ; Shah, Saurabh M ; Schulz, Joachim ; Marathe, Shashidhara ; Rau, Christoph ; Endrizzi, Marco ; Lee, Peter D ; Olivo, Alessandro
  • Assuntos: Applied physics ; Imaging techniques ; Investigations ; Laboratories ; Lasers ; MATERIALS SCIENCE ; Melting ; Metals ; Refraction ; Solidification ; Titanium
  • É parte de: Scientific reports, 2022-07, Vol.12 (1), p.12136-12136, Article 12136
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    AC02-06CH11357
    Engineering and Physical Sciences Research Council (EPSRC)
  • Descrição: 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.
  • Editor: London: Nature Publishing Group
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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