Microstructural Transition from Eutectic to Dendritic Structures and Its Effect on Mechanical Properties During Directional Solidification of Al–Si–Co Alloy.
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| Title: | Microstructural Transition from Eutectic to Dendritic Structures and Its Effect on Mechanical Properties During Directional Solidification of Al–Si–Co Alloy. |
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| Authors: | Üstün, Erkan1 (AUTHOR) erkanustun_07@hotmail.com, Çadırlı, Emin2 (AUTHOR) |
| Source: | International Journal of Metalcasting. May2026, Vol. 20 Issue 3, p1851-1865. 15p. |
| Subjects: | Directional solidification, Mechanical behavior of materials, Ternary alloys, Eutectic structure, Dendritic crystals, Aluminum-silicon alloys, Phase transitions, Solidification |
| Abstract: | In this study, the Al–12Si–1Co (at%) ternary alloy was directionally solidified using a Bridgman-type growth apparatus under a constant temperature gradient (G=7.42 K/mm) over a wide range of growth rates (V=8.3–498.0 μm/s). At a growth rate of 166.0 μm/s, transitions from eutectic to dendritic structures were observed in the microstructure. In both transverse and longitudinal specimens of the directionally solidified alloy, flake spacing at low growth rates (8.3–166.0 μm/s) and dendritic arm spacing (λ) at high growth rates (498.0 μm/s), along with microhardness (HV), tensile yield strength, ultimate tensile strength, and compressive yield strength (σTYS, σUTS, σCYS), were measured. The dependence of flake and dendritic arm spacing, microhardness, and tensile and compressive strengths on the growth rate (V) was also determined through statistical analysis. According to the results, it was found that as the V value increased, HV, σTYS, σUTS, and σCYS values also increased. The findings of this study were compared with previous similar experimental results obtained for binary and ternary alloys. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Metalcasting is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 193884007 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Microstructural Transition from Eutectic to Dendritic Structures and Its Effect on Mechanical Properties During Directional Solidification of Al–Si–Co Alloy. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Üstün%2C+Erkan%22">Üstün, Erkan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> erkanustun_07@hotmail.com</i><br /><searchLink fieldCode="AR" term="%22Çadırlı%2C+Emin%22">Çadırlı, Emin</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Metalcasting%22">International Journal of Metalcasting</searchLink>. May2026, Vol. 20 Issue 3, p1851-1865. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Directional+solidification%22">Directional solidification</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Ternary+alloys%22">Ternary alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Eutectic+structure%22">Eutectic structure</searchLink><br /><searchLink fieldCode="DE" term="%22Dendritic+crystals%22">Dendritic crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum-silicon+alloys%22">Aluminum-silicon alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Solidification%22">Solidification</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this study, the Al–12Si–1Co (at%) ternary alloy was directionally solidified using a Bridgman-type growth apparatus under a constant temperature gradient (G=7.42 K/mm) over a wide range of growth rates (V=8.3–498.0 μm/s). At a growth rate of 166.0 μm/s, transitions from eutectic to dendritic structures were observed in the microstructure. In both transverse and longitudinal specimens of the directionally solidified alloy, flake spacing at low growth rates (8.3–166.0 μm/s) and dendritic arm spacing (λ) at high growth rates (498.0 μm/s), along with microhardness (HV), tensile yield strength, ultimate tensile strength, and compressive yield strength (σTYS, σUTS, σCYS), were measured. The dependence of flake and dendritic arm spacing, microhardness, and tensile and compressive strengths on the growth rate (V) was also determined through statistical analysis. According to the results, it was found that as the V value increased, HV, σTYS, σUTS, and σCYS values also increased. The findings of this study were compared with previous similar experimental results obtained for binary and ternary alloys. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Metalcasting is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s40962-025-01701-9 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 1851 Subjects: – SubjectFull: Directional solidification Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Ternary alloys Type: general – SubjectFull: Eutectic structure Type: general – SubjectFull: Dendritic crystals Type: general – SubjectFull: Aluminum-silicon alloys Type: general – SubjectFull: Phase transitions Type: general – SubjectFull: Solidification Type: general Titles: – TitleFull: Microstructural Transition from Eutectic to Dendritic Structures and Its Effect on Mechanical Properties During Directional Solidification of Al–Si–Co Alloy. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Üstün, Erkan – PersonEntity: Name: NameFull: Çadırlı, Emin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19395981 Numbering: – Type: volume Value: 20 – Type: issue Value: 3 Titles: – TitleFull: International Journal of Metalcasting Type: main |
| ResultId | 1 |
