Determination of Solidification of Rigidity Point Temperature Using a New Method

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dc.contributor.authorVillanueva, Ester
dc.contributor.authorVicario, Iban
dc.contributor.authorSánchez, Jon Mikel
dc.contributor.authorCrespo, Ignacio
dc.contributor.institutionPROMETAL
dc.contributor.institutionCIRMETAL
dc.date.issued2020-04-03
dc.descriptionPublisher Copyright: © 2020 by the authors.
dc.description.abstractThis work aims to calculate the rigidity point temperature of aluminum alloys by three new methods and compare them with currently employed methods. The influence of major and minor alloying elements over the rigidity point temperature is also discussed. Until now it has been difficult to determine the exact temperature of the rigidity point, since small variations in the data obtained give variable results, making it difficult to automate the process with high accuracy. In this work we suggested three new mathematic methods based on the calculation of higher order derivatives of (dT/dt) with respect to time or temperature compared to those currently employed. A design of experiments based on the Taguchi method was employed to compare the effect of the major and minor alloying elements for the AlSi10Mg alloy, and to evaluate the accuracy of each developed method. Therefore, these systems will allow better automation of rigidity point temperature (RPT) determination, which is one of the most important solidification parameters for solidification simulators. The importance of the correct determination of this parameter lies in its relation to quality problems related to solidification, such as hot tearing. If the RPT presents very low-temperature values, the aluminum casting will be more sensitive to hot tearing, promoting the presence of cracks during the solidification process. This is why it is so important to correctly determine the temperature of the RPT. An adequate design of chemical composition by applying the methodology and the novel methods proposed in this work, and also the optimization of process parameters of the whole casting process with the help of the integrated computational modeling, will certainly help to decrease any internal defective by predicting one of the most important defects present in the aluminum industry.en
dc.description.statusPeer reviewed
dc.format.extent1
dc.format.extent5874226
dc.identifier.citationVillanueva , E , Vicario , I , Sánchez , J M & Crespo , I 2020 , ' Determination of Solidification of Rigidity Point Temperature Using a New Method ' , Applied Sciences , vol. 10 , no. 7 , 2472 , pp. 2472 . https://doi.org/10.3390/app10072472
dc.identifier.doi10.3390/app10072472
dc.identifier.issn1454-5101
dc.identifier.otherresearchoutputwizard: 11556/899
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85083432477&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofApplied Sciences
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject.keywordsRigidity point temperature
dc.subject.keywordsCast metal alloys
dc.subject.keywordsAluminum
dc.subject.keywordsAdvanced thermal analysis
dc.subject.keywordsMicrostructure
dc.subject.keywordsRigidity point temperature
dc.subject.keywordsCast metal alloys
dc.subject.keywordsAluminum
dc.subject.keywordsAdvanced thermal analysis
dc.subject.keywordsMicrostructure
dc.subject.keywordsGeneral Materials Science
dc.subject.keywordsInstrumentation
dc.subject.keywordsGeneral Engineering
dc.subject.keywordsProcess Chemistry and Technology
dc.subject.keywordsComputer Science Applications
dc.subject.keywordsFluid Flow and Transfer Processes
dc.subject.keywordsFunding Info
dc.subject.keywordsThis research was partially funded by the Basque Government through the Etorgai Programme 2016, under the Filing Identification Number ZE-2016/00018 and the Elkartek Programme 2020, KK-2020-00047 for research, technological development and demonstration.
dc.subject.keywordsThis research was partially funded by the Basque Government through the Etorgai Programme 2016, under the Filing Identification Number ZE-2016/00018 and the Elkartek Programme 2020, KK-2020-00047 for research, technological development and demonstration.
dc.titleDetermination of Solidification of Rigidity Point Temperature Using a New Methoden
dc.typejournal article
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