Validation of a Front-Tracking Model of the Columnar to Equiaxed Transition using Solidification Results from the Maxus 7 Microgravity Platform
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|Title:||Validation of a Front-Tracking Model of the Columnar to Equiaxed Transition using Solidification Results from the Maxus 7 Microgravity Platform||Authors:||McFadden, Shaun; Sturz, Laszlo; Jung, Hyejin; Browne, David J.; et al.||Permanent link:||http://hdl.handle.net/10197/11977||Date:||Mar-2008||Online since:||2021-02-24T16:44:26Z||Abstract:||To study the columnar-to-equiaxed transition (CET) in alloy castings, three aluminum-silicon samples were solidified onboard the MAXUS 7 sounding rocket. Temperature measurements were made during the flight and the samples were retrieved and analyzed for their solidified macrostructure. Two of the samples produced a CET while the third sample produced a mixed structure with grains nucleating on the crucible walls. A novel front tracking model of solidification and a model of the MACE test apparatus are presented. Validation of the solidification code is carried out. Cooling curves from the experiments are predicted. A simulation of the solidified macrostructure is also given for each experiment. The CET positions are predicted in agreement with the experimental results.||Type of material:||Journal Article||Publisher:||The Japan Society of Microgravity Application||Journal:||Journal of the Japan Society of Microgravity Application||Volume:||25||Issue:||3||Start page:||489||End page:||494||Copyright (published version):||2020 The Japan Society of Microgravity Applicaiton||Keywords:||Metallic alloys; Aluminium-silicon alloys; Microgravity conditions; Crystallographic macrostructure; MAXUS 7 sounding rockets||Other versions:||http://www.jasma.info/journal/archives/report/validation-of-a-front-tracking-model-of-the-columnar-to-equiaxed-transition-using-solidification-results-from-the-maxus-7-microgravity-platform||Language:||en||Status of Item:||Peer reviewed||ISSN:||0915 3616||This item is made available under a Creative Commons License:||https://creativecommons.org/licenses/by-nc-nd/3.0/ie/|
|Appears in Collections:||Mechanical & Materials Engineering Research Collection|
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