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dc.contributor.authorXu, Yijiang
dc.contributor.authorZhao, Dongdong
dc.contributor.authorLi, Yanjun
dc.date.accessioned2019-02-26T13:57:21Z
dc.date.available2019-02-26T13:57:21Z
dc.date.created2018-03-19T17:46:54Z
dc.date.issued2018
dc.identifier.citationMetallurgical and Materials Transactions. A. 2018, 49 (5), 1770-1781.nb_NO
dc.identifier.issn1073-5623
dc.identifier.urihttp://hdl.handle.net/11250/2587570
dc.description.abstractChemical composition is known to have significant effects on the grain refinement behavior of inoculated Al alloys during solidification. In this study, the influences of solute contents on the thermodynamic nucleation driving force and solid–liquid interfacial energy of binary Al alloys have been studied by CALPHAD method. The solute effect on the nucleation barrier and nucleation rate, thus on the grain refinement of Al alloys both with and without high potency nucleation particles, was analyzed based on the classical heterogeneous nucleation theory and free growth concept. Based on the classical heterogeneous nucleation theory, the calculation results reveal that Si has the effect of increasing the nucleation barrier of heterogeneous nucleation of grains and thus reduce the nucleation rate significantly. Alloying elements Cu and Mg have the effect of promoting heterogeneous nucleation and grain refinement. However, peritectic-forming elements, e.g., Ti, Zr, V, have only negligible effects on the nucleation barrier. For solidification of Al alloys inoculated with high potency nucleation particles, the effect of nucleation driving force caused by different solute elements on the grain size of inoculated aluminum alloys has been quantitatively studied by a grain size prediction model for isothermal melt solidification. It is revealed that the solute dependent Gibbs–Thompson coefficients of Al-Cu, Al-Mg, and Al-Si alloys have the influence of promoting the grain refinement by reducing the free growth undercooling.nb_NO
dc.language.isoengnb_NO
dc.publisherSpringer Verlagnb_NO
dc.titleA Thermodynamic Study on the Effect of Solute on the Nucleation Driving Force, Solid?Liquid Interfacial Energy, and Grain Refinement of Al Alloysnb_NO
dc.typeJournal articlenb_NO
dc.description.versionsubmittedVersionnb_NO
dc.source.pagenumber1770-1781nb_NO
dc.source.volume49nb_NO
dc.source.journalMetallurgical and Materials Transactions. Anb_NO
dc.source.issue5nb_NO
dc.identifier.doi10.1007/s11661-018-4542-2
dc.identifier.cristin1574129
dc.relation.projectNorges forskningsråd: 236675nb_NO
dc.description.localcode© The Minerals, Metals & Materials Society and ASM International 2018. This is a pre-print of an article published in Metallurgical and Materials Transactions A. The final authenticated version is available online at: https://doi.org/10.1007/s11661-018-4542-2nb_NO
cristin.unitcode194,66,35,0
cristin.unitnameInstitutt for materialteknologi
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode2


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