In-situ X-ray monitoring of solidification and related processes of metal alloys

G Reinhart, DJ Browne, F Kargl, F García-Moreno… - npj …, 2023 - nature.com
X-ray radioscopy enables the in-situ monitoring of metal alloy processes and then gives
access to crucial information on the dynamics of the underlying phenomena. In the last …

Heterogeneous nucleation and grain growth of inoculated aluminium alloys: An integrated study by in-situ X-radiography and numerical modelling

Y Xu, D Casari, Q Du, RH Mathiesen, L Arnberg, Y Li - Acta Materialia, 2017 - Elsevier
A comprehensive study on the heterogeneous nucleation and grain growth of Al-10 wt.% Cu
alloys inoculated with Al-5Ti-1B was carried out. To further reveal the solute segregation …

Revealing the heterogeneous nucleation behavior of equiaxed grains of inoculated Al alloys during directional solidification

Y Xu, D Casari, RH Mathiesen, Y Li - Acta Materialia, 2018 - Elsevier
An in-situ study on the directional solidification of an inoculated Al-20 wt% Cu alloy under
well-controlled constant cooling rates and temperature gradients has been carried out using …

X-ray imaging of alloy solidification: crystal formation, growth, instability and defects

S Feng, E Liotti, PS Grant - Materials, 2022 - mdpi.com
Synchrotron and laboratory-based X-ray imaging techniques have been increasingly used
for in situ investigations of alloy solidification and other metal processes. Several reviews …

Impact of solute flow during directional solidification of a Ni-based alloy: In-situ and real-time X-radiography

G Reinhart, D Grange, L Abou-Khalil… - Acta Materialia, 2020 - Elsevier
Understanding the impact of thermo-solutal convection during alloy solidification is of central
importance in the casting industry. Convective flow generated from density variations in the …

In situ investigation of the Columnar-to-Equiaxed Transition during directional solidification of Al–20 wt.% Cu alloys on Earth and in microgravity

F Ngomesse, G Reinhart, H Soltani, G Zimmermann… - Acta Materialia, 2021 - Elsevier
Solidification experiments on Al–20 wt.% Cu alloys with grain refiner were performed in a
Bridgman-type furnace to investigate the impact of gravity-driven phenomena on the …

In situ observation of solidification patterns in diffusive conditions

S Akamatsu, H Nguyen-Thi - Acta Materialia, 2016 - Elsevier
We present a review of recent in situ experimentation studies of solidification front patterns
and microstructures in alloys. Front-tracking diagnostics and real-time observation methods …

In-situ X-ray radiography of primary Fe-rich intermetallic compound formation

S Feng, E Liotti, A Lui, MD Wilson, T Connolley… - Acta Materialia, 2020 - Elsevier
The formation of primary Fe-rich intermetallic compound crystals and the effect of TiB 2 and
TiC inoculation during solidification of a hypereutectic Al-Fe alloy has been investigated …

Equiaxed dendritic solidification and grain refiner potency characterised through in situ X-radiography

AG Murphy, WU Mirihanage, DJ Browne… - Acta Materialia, 2015 - Elsevier
Results of near-isothermal equiaxed solidification experiments on the Al–Cu system
performed in situ with laboratory-based radiography are presented. The ability to align the X …

A modified cellular automaton model for the quantitative prediction of equiaxed and columnar dendritic growth

R Chen, Q Xu, B Liu - Journal of Materials Science & Technology, 2014 - Elsevier
Since the characteristic of dendrite is an important factor determining the performance of
castings, a two-dimensional cellular automaton model with decentered square algorithm is …