Enhancing significantly the strength and tribological response of Al7075 alloy using nano-ZrO2 reinforcement
Ball milling is an effective method for developing a homogenous and refined microstructure for composites. In this study, we synthesized ultrahigh strength Al7075/xZrO2 alloy nanocomposites. These nanocomposites were specially fabricated by the in-situ powder metallurgy technique from high-purity el...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423029332 |
| _version_ | 1797301479677100032 |
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| author | Vivek Sharma Ashis Mallick Manoj Gupta |
| author_facet | Vivek Sharma Ashis Mallick Manoj Gupta |
| author_sort | Vivek Sharma |
| collection | DOAJ |
| description | Ball milling is an effective method for developing a homogenous and refined microstructure for composites. In this study, we synthesized ultrahigh strength Al7075/xZrO2 alloy nanocomposites. These nanocomposites were specially fabricated by the in-situ powder metallurgy technique from high-purity elemental powders through a multi-step process, which included ball milling, uniaxial cold compaction, traditional sintering in an inert atmosphere, and hot extrusion. The ZrO2 nanoparticles with varying volume percentages (x vol.% = 0, 1.25, 2.53, 3.84, and 5.19) were used as a reinforcement. Ball milling was performed to mechanically alloy the elemental powders that reduce the grain size of the powder and homogeneously disperse the nano ZrO2 in the matrix. The physical, mechanical, microstructural, and tribological properties of the nanocomposites were determined. The results showed that adding 2.53 vol.% ZrO2 nanoparticles considerably improved the mechanical and tribological properties. The tensile strength and yield strength of the 2.53 vol.% alloy nanocomposites increased significantly. The wear resistance of the nanocomposite increased up to 5.19 vol.% ZrO2. The results obtained from the newly developed composites were compared with those of Al7075 alloy composites produced earlier. |
| first_indexed | 2024-03-07T23:23:11Z |
| format | Article |
| id | doaj.art-bb8c238f19924bd8a7deb2887b264154 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-07T23:23:11Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-bb8c238f19924bd8a7deb2887b2641542024-02-21T05:28:11ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012772807292Enhancing significantly the strength and tribological response of Al7075 alloy using nano-ZrO2 reinforcementVivek Sharma0Ashis Mallick1Manoj Gupta2Department of Mechanical Engineering, Indian Institute of Technology (ISM.) Dhanbad, 8260004, IndiaDepartment of Mechanical Engineering, Indian Institute of Technology (ISM.) Dhanbad, 8260004, India; Corresponding author.Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, 117576, SingaporeBall milling is an effective method for developing a homogenous and refined microstructure for composites. In this study, we synthesized ultrahigh strength Al7075/xZrO2 alloy nanocomposites. These nanocomposites were specially fabricated by the in-situ powder metallurgy technique from high-purity elemental powders through a multi-step process, which included ball milling, uniaxial cold compaction, traditional sintering in an inert atmosphere, and hot extrusion. The ZrO2 nanoparticles with varying volume percentages (x vol.% = 0, 1.25, 2.53, 3.84, and 5.19) were used as a reinforcement. Ball milling was performed to mechanically alloy the elemental powders that reduce the grain size of the powder and homogeneously disperse the nano ZrO2 in the matrix. The physical, mechanical, microstructural, and tribological properties of the nanocomposites were determined. The results showed that adding 2.53 vol.% ZrO2 nanoparticles considerably improved the mechanical and tribological properties. The tensile strength and yield strength of the 2.53 vol.% alloy nanocomposites increased significantly. The wear resistance of the nanocomposite increased up to 5.19 vol.% ZrO2. The results obtained from the newly developed composites were compared with those of Al7075 alloy composites produced earlier.http://www.sciencedirect.com/science/article/pii/S2238785423029332Al7075 alloyNanocompositeMicrostructureTensile propertiesWear properties |
| spellingShingle | Vivek Sharma Ashis Mallick Manoj Gupta Enhancing significantly the strength and tribological response of Al7075 alloy using nano-ZrO2 reinforcement Journal of Materials Research and Technology Al7075 alloy Nanocomposite Microstructure Tensile properties Wear properties |
| title | Enhancing significantly the strength and tribological response of Al7075 alloy using nano-ZrO2 reinforcement |
| title_full | Enhancing significantly the strength and tribological response of Al7075 alloy using nano-ZrO2 reinforcement |
| title_fullStr | Enhancing significantly the strength and tribological response of Al7075 alloy using nano-ZrO2 reinforcement |
| title_full_unstemmed | Enhancing significantly the strength and tribological response of Al7075 alloy using nano-ZrO2 reinforcement |
| title_short | Enhancing significantly the strength and tribological response of Al7075 alloy using nano-ZrO2 reinforcement |
| title_sort | enhancing significantly the strength and tribological response of al7075 alloy using nano zro2 reinforcement |
| topic | Al7075 alloy Nanocomposite Microstructure Tensile properties Wear properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423029332 |
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