Effect of B4C variation on the mechanical, fractographic and tribological performance of hybrid composites Al7075/Gr/ZrO2.
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| Title: | Effect of B4C variation on the mechanical, fractographic and tribological performance of hybrid composites Al7075/Gr/ZrO |
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| Authors: | R., Sampath Kumar1 Sampathkr39@gmail.com, Chittappa, H. C.2 chittappahc@uvce.ac.in, Anand, Praveena Bindiganavile3 praveen.ba@nmit.ac.in, Vatnalmath, Manjunath4 vmanjunathsit@gmail.com, Nagaral, Madeva5 madev.nagaral@gmail.com |
| Source: | Fracture & Structural Integrity. Apr2026, Issue 76, p67-81. 15p. |
| Subjects: | Composite materials, Boron carbides, Casting (Manufacturing process), Mechanical behavior of materials, Zirconium oxide, Aluminum alloys, Sliding wear |
| Abstract: | This article investigates the effect of varying boron carbide (B4C) content on the mechanical, fractographic, and tribological performance of hybrid composites based on the aluminum alloy Al7075 reinforced with fixed amounts of graphite (Gr) and zirconia (ZrO2). Using a two-step stir casting process, composites with 3 wt.% Gr, 3 wt.% ZrO2, and 2–4 wt.% B4C were fabricated and characterized. Results show that the hybrid composites exhibit uniform particle dispersion, enhanced hardness (up to 87 BHN), increased ultimate tensile strength (up to 293 MPa), and improved yield strength compared to the base Al7075 alloy, with a slight reduction in ductility. Wear resistance significantly improved due to the synergistic effect of hard ceramic reinforcements (B4C and ZrO2) increasing load-bearing capacity and graphite acting as a solid lubricant, with the 4 wt.% B4C composite demonstrating optimal performance under various loads and sliding speeds. These findings support the potential of Al7075/Gr/ZrO2/B4C hybrid composites for lightweight structural applications in automotive and aerospace industries. [Extracted from the article] |
| Copyright of Fracture & Structural Integrity is the property of Gruppo Italiano Frattura 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: 192612100 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effect of B4C variation on the mechanical, fractographic and tribological performance of hybrid composites Al7075/Gr/ZrO<subscript>2</subscript>. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22R%2E%2C+Sampath+Kumar%22">R., Sampath Kumar</searchLink><relatesTo>1</relatesTo><i> Sampathkr39@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Chittappa%2C+H%2E+C%2E%22">Chittappa, H. C.</searchLink><relatesTo>2</relatesTo><i> chittappahc@uvce.ac.in</i><br /><searchLink fieldCode="AR" term="%22Anand%2C+Praveena+Bindiganavile%22">Anand, Praveena Bindiganavile</searchLink><relatesTo>3</relatesTo><i> praveen.ba@nmit.ac.in</i><br /><searchLink fieldCode="AR" term="%22Vatnalmath%2C+Manjunath%22">Vatnalmath, Manjunath</searchLink><relatesTo>4</relatesTo><i> vmanjunathsit@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Nagaral%2C+Madeva%22">Nagaral, Madeva</searchLink><relatesTo>5</relatesTo><i> madev.nagaral@gmail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Fracture+%26+Structural+Integrity%22">Fracture & Structural Integrity</searchLink>. Apr2026, Issue 76, p67-81. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Boron+carbides%22">Boron carbides</searchLink><br /><searchLink fieldCode="DE" term="%22Casting+%28Manufacturing+process%29%22">Casting (Manufacturing process)</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Zirconium+oxide%22">Zirconium oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+alloys%22">Aluminum alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Sliding+wear%22">Sliding wear</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This article investigates the effect of varying boron carbide (B4C) content on the mechanical, fractographic, and tribological performance of hybrid composites based on the aluminum alloy Al7075 reinforced with fixed amounts of graphite (Gr) and zirconia (ZrO2). Using a two-step stir casting process, composites with 3 wt.% Gr, 3 wt.% ZrO2, and 2–4 wt.% B4C were fabricated and characterized. Results show that the hybrid composites exhibit uniform particle dispersion, enhanced hardness (up to 87 BHN), increased ultimate tensile strength (up to 293 MPa), and improved yield strength compared to the base Al7075 alloy, with a slight reduction in ductility. Wear resistance significantly improved due to the synergistic effect of hard ceramic reinforcements (B4C and ZrO2) increasing load-bearing capacity and graphite acting as a solid lubricant, with the 4 wt.% B4C composite demonstrating optimal performance under various loads and sliding speeds. These findings support the potential of Al7075/Gr/ZrO2/B4C hybrid composites for lightweight structural applications in automotive and aerospace industries. [Extracted from the article] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Fracture & Structural Integrity is the property of Gruppo Italiano Frattura 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: 10.3221/IGF-ESIS.76.05 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 67 Subjects: – SubjectFull: Composite materials Type: general – SubjectFull: Boron carbides Type: general – SubjectFull: Casting (Manufacturing process) Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Zirconium oxide Type: general – SubjectFull: Aluminum alloys Type: general – SubjectFull: Sliding wear Type: general Titles: – TitleFull: Effect of B4C variation on the mechanical, fractographic and tribological performance of hybrid composites Al7075/Gr/ZrO2. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: R., Sampath Kumar – PersonEntity: Name: NameFull: Chittappa, H. C. – PersonEntity: Name: NameFull: Anand, Praveena Bindiganavile – PersonEntity: Name: NameFull: Vatnalmath, Manjunath – PersonEntity: Name: NameFull: Nagaral, Madeva IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19718993 Numbering: – Type: issue Value: 76 Titles: – TitleFull: Fracture & Structural Integrity Type: main |
| ResultId | 1 |
