eprintid: 10091830
rev_number: 15
eprint_status: archive
userid: 608
dir: disk0/10/09/18/30
datestamp: 2020-02-21 15:34:03
lastmod: 2021-09-21 21:58:14
status_changed: 2020-02-21 15:34:03
type: article
metadata_visibility: show
creators_name: Nelson, T
creators_name: Cai, B
creators_name: Warnken, N
creators_name: Lee, PD
creators_name: Boller, E
creators_name: Magdysyuk, OV
creators_name: Green, NR
title: Gravity effect on thermal-solutal convection during solidification revealed by four-dimensional synchrotron imaging with compositional mapping
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F45
keywords: Solidification, Gravity, 4D, Synchrotron tomography
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: The effect of gravity on thermo-solutal convection and its impact on solidification dynamics of an Al-15 wt%Cu alloy were studied using high speed synchrotron tomography. A method for mapping the composition of the solidifying samples was developed, enabling three-dimensional quantification of the time evolved solute concentration and dendrite morphology. Differences in solute segregation, dendrite morphology and fragmentation between upwards and downwards solidification were identified, which were attributed to buoyancy-modulated thermal-solutal convection.
date: 2020-04-15
date_type: published
official_url: https://doi.org/10.1016/j.scriptamat.2019.12.026
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1751228
doi: 10.1016/j.scriptamat.2019.12.026
lyricists_name: Lee, Peter
lyricists_id: PLEEX57
actors_name: Lee, Peter
actors_id: PLEEX57
actors_role: owner
full_text_status: public
publication: Scripta Materialia
volume: 180
pagerange: 29-33
citation:        Nelson, T;    Cai, B;    Warnken, N;    Lee, PD;    Boller, E;    Magdysyuk, OV;    Green, NR;      (2020)    Gravity effect on thermal-solutal convection during solidification revealed by four-dimensional synchrotron imaging with compositional mapping.                   Scripta Materialia , 180    pp. 29-33.    10.1016/j.scriptamat.2019.12.026 <https://doi.org/10.1016/j.scriptamat.2019.12.026>.       Green open access   
 
document_url: https://discovery-pp.ucl.ac.uk/id/eprint/10091830/1/J310_Nelson_Cai_Scripta_as_accepted_191219.pdf