Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite
In this study, aluminum alloy (Al7075) composites with a 4% weight fraction of tungsten carbide (WC) were manufactured using a stir casting process and the developed composites were subjected to various ageing temperatures. An attempt has been made to predict the age-hardening temperature with the e...
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MDPI AG
2022-08-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/15/5344 |
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| author | Srinivasan Rajaram Thirugnanam Subbiah Parammasivam Kanjikovil Mahali Muthuramalingam Thangaraj |
| author_facet | Srinivasan Rajaram Thirugnanam Subbiah Parammasivam Kanjikovil Mahali Muthuramalingam Thangaraj |
| author_sort | Srinivasan Rajaram |
| collection | DOAJ |
| description | In this study, aluminum alloy (Al7075) composites with a 4% weight fraction of tungsten carbide (WC) were manufactured using a stir casting process and the developed composites were subjected to various ageing temperatures. An attempt has been made to predict the age-hardening temperature with the enhanced mechanical and wear properties of Al7075-WC. The result shows that the composite specimen aged at 250 °C offered maximum tensile strength and the Brinell hardness number was increased by 37.1% and 50.5%, respectively; the maximum impact energy was observed to be 92.2% for the 450 °C aged composites, compared to the non-aged Al7075-WC composites. The strength properties of the Al7075-WC composite decreased to 30.86%, 4.7%, and 24.9% when the composite specimens aged at 350 °C. The mechanical properties of the Al7075-WC composite were increased at the age-hardening temperatures from 150 °C to 250 °C and decreased from 250 °C to 350 °C. The wear testing pin-on-disc setup utilized to determine the wear characteristics of the prepared MMC with wear parameters of load and sliding distance and the wear resistance of the composite specimens increased due to ageing. The fractography analysis of the composite samples carried out by scanning electron microscope (SEM) images revealed that the fracture of the composite during the tensile test is a mixture of ductile and brittle modes. |
| first_indexed | 2024-03-09T10:07:30Z |
| format | Article |
| id | doaj.art-78405c24a8b74e698d23f406c1f0db18 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T10:07:30Z |
| publishDate | 2022-08-01 |
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| spelling | doaj.art-78405c24a8b74e698d23f406c1f0db182023-12-01T23:01:17ZengMDPI AGMaterials1996-19442022-08-011515534410.3390/ma15155344Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide CompositeSrinivasan Rajaram0Thirugnanam Subbiah1Parammasivam Kanjikovil Mahali2Muthuramalingam Thangaraj3Department of Mechanical Engineering, SRM Valliammai Engineering College, Chennai 603203, IndiaDepartment of Mechanical Engineering, SRM Valliammai Engineering College, Chennai 603203, IndiaDepartment of Aerospace Engineering, Madras Institute of Technology Campus, Anna University, Chennai 600044, IndiaDepartment of Mechatronics Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, IndiaIn this study, aluminum alloy (Al7075) composites with a 4% weight fraction of tungsten carbide (WC) were manufactured using a stir casting process and the developed composites were subjected to various ageing temperatures. An attempt has been made to predict the age-hardening temperature with the enhanced mechanical and wear properties of Al7075-WC. The result shows that the composite specimen aged at 250 °C offered maximum tensile strength and the Brinell hardness number was increased by 37.1% and 50.5%, respectively; the maximum impact energy was observed to be 92.2% for the 450 °C aged composites, compared to the non-aged Al7075-WC composites. The strength properties of the Al7075-WC composite decreased to 30.86%, 4.7%, and 24.9% when the composite specimens aged at 350 °C. The mechanical properties of the Al7075-WC composite were increased at the age-hardening temperatures from 150 °C to 250 °C and decreased from 250 °C to 350 °C. The wear testing pin-on-disc setup utilized to determine the wear characteristics of the prepared MMC with wear parameters of load and sliding distance and the wear resistance of the composite specimens increased due to ageing. The fractography analysis of the composite samples carried out by scanning electron microscope (SEM) images revealed that the fracture of the composite during the tensile test is a mixture of ductile and brittle modes.https://www.mdpi.com/1996-1944/15/15/5344Al7075WCage hardeningtemperaturefractographywear |
| spellingShingle | Srinivasan Rajaram Thirugnanam Subbiah Parammasivam Kanjikovil Mahali Muthuramalingam Thangaraj Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite Materials Al7075 WC age hardening temperature fractography wear |
| title | Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite |
| title_full | Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite |
| title_fullStr | Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite |
| title_full_unstemmed | Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite |
| title_short | Effect of Age-Hardening Temperature on Mechanical and Wear Behavior of Furnace-Cooled Al7075-Tungsten Carbide Composite |
| title_sort | effect of age hardening temperature on mechanical and wear behavior of furnace cooled al7075 tungsten carbide composite |
| topic | Al7075 WC age hardening temperature fractography wear |
| url | https://www.mdpi.com/1996-1944/15/15/5344 |
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