Mechanical and Microstructural Investigations of AA2124/SiC Metal Matrix Composites After Creep.
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| Title: | Mechanical and Microstructural Investigations of AA2124/SiC Metal Matrix Composites After Creep. |
|---|---|
| Authors: | Rutecka, Agnieszka1 (AUTHOR), Makowska, Katarzyna2 (AUTHOR) katarzyna.makowska@wat.edu.pl, Kowalewski, Zbigniew Ludwik3 (AUTHOR) |
| Source: | Materials (1996-1944). Oct2025, Vol. 18 Issue 19, p4495. 16p. |
| Subjects: | Creep testing, Silicon carbide, Strains & stresses (Mechanics), Failure mode & effects analysis, Metallic composites, Tensile strength, Aluminum composites, Microfabrication |
| Abstract: | The AA2124 aluminium alloy-based metal matrix composites (MMCs) reinforced with the silicon carbide (SiC) were examined under tensile creep at 300 °C. The tests were carried out for the materials of different SiC particle size (3 µm and 0.6 µm) and amount (17 vol.% and 25 vol.%). Creep curves under different constant stresses are presented. A high stress sensitivity of the composites tested was identified for a very narrow range of stress values. As a result, a threshold stress range separating the slow and fast creep stages was easily identified at around 5 Mpa for the composite with a larger SiC particle size and lower content and around 1 Mpa for the two other composites. It means that a very small change in stress applied to the structural element at elevated temperatures may lead to its very rapid collapse or even the destruction of the whole structure. The experimental programme was supplemented by the microstructural observations carried out using the scanning electron microscopy providing data necessary for better understanding the damage mechanisms of the material subjected to creep. An influence of voids on the mechanical response and fracture zones was identified. Attention was paid to the nature of degradation of the composites. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI 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: 188676863 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Mechanical and Microstructural Investigations of AA2124/SiC Metal Matrix Composites After Creep. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rutecka%2C+Agnieszka%22">Rutecka, Agnieszka</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Makowska%2C+Katarzyna%22">Makowska, Katarzyna</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> katarzyna.makowska@wat.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Kowalewski%2C+Zbigniew+Ludwik%22">Kowalewski, Zbigniew Ludwik</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Oct2025, Vol. 18 Issue 19, p4495. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Creep+testing%22">Creep testing</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon+carbide%22">Silicon carbide</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Failure+mode+%26+effects+analysis%22">Failure mode & effects analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+composites%22">Metallic composites</searchLink><br /><searchLink fieldCode="DE" term="%22Tensile+strength%22">Tensile strength</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+composites%22">Aluminum composites</searchLink><br /><searchLink fieldCode="DE" term="%22Microfabrication%22">Microfabrication</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The AA2124 aluminium alloy-based metal matrix composites (MMCs) reinforced with the silicon carbide (SiC) were examined under tensile creep at 300 °C. The tests were carried out for the materials of different SiC particle size (3 µm and 0.6 µm) and amount (17 vol.% and 25 vol.%). Creep curves under different constant stresses are presented. A high stress sensitivity of the composites tested was identified for a very narrow range of stress values. As a result, a threshold stress range separating the slow and fast creep stages was easily identified at around 5 Mpa for the composite with a larger SiC particle size and lower content and around 1 Mpa for the two other composites. It means that a very small change in stress applied to the structural element at elevated temperatures may lead to its very rapid collapse or even the destruction of the whole structure. The experimental programme was supplemented by the microstructural observations carried out using the scanning electron microscopy providing data necessary for better understanding the damage mechanisms of the material subjected to creep. An influence of voids on the mechanical response and fracture zones was identified. Attention was paid to the nature of degradation of the composites. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials (1996-1944) is the property of MDPI 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: 10.3390/ma18194495 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 4495 Subjects: – SubjectFull: Creep testing Type: general – SubjectFull: Silicon carbide Type: general – SubjectFull: Strains & stresses (Mechanics) Type: general – SubjectFull: Failure mode & effects analysis Type: general – SubjectFull: Metallic composites Type: general – SubjectFull: Tensile strength Type: general – SubjectFull: Aluminum composites Type: general – SubjectFull: Microfabrication Type: general Titles: – TitleFull: Mechanical and Microstructural Investigations of AA2124/SiC Metal Matrix Composites After Creep. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rutecka, Agnieszka – PersonEntity: Name: NameFull: Makowska, Katarzyna – PersonEntity: Name: NameFull: Kowalewski, Zbigniew Ludwik IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 18 – Type: issue Value: 19 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
