Investigation of impact energy absorption of AA6061 and its composites: role of post-aging cooling methods
Al6061 and its composites are widely employed in applications requiring high strength and impact resistance. Heat treatment, particularly ageing, is a well-established method for enhancing the mechanical properties of these composites. However, the influence of post-ageing cooling methods on the imp...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Gruppo Italiano Frattura
2023-10-01
|
| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/4449/3893 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832544285793189888 |
|---|---|
| author | G. V. Krishna Reddy B. K. Naveen Kumar G. Hareesha A. M. Rajesh Saleemsab Doddamani |
| author_facet | G. V. Krishna Reddy B. K. Naveen Kumar G. Hareesha A. M. Rajesh Saleemsab Doddamani |
| author_sort | G. V. Krishna Reddy |
| collection | DOAJ |
| description | Al6061 and its composites are widely employed in applications requiring high strength and impact resistance. Heat treatment, particularly ageing, is a well-established method for enhancing the mechanical properties of these composites. However, the influence of post-ageing cooling methods on the impact energy absorption capacity of Al6061 and its composites is not well understood. This investigation aims to examine the impact energy absorption of Al6061 and its composites after ageing at 460�C for 2 hours, employing different cooling methods, including furnace cooling, air cooling, and water cooling. The composites were produced using the stir casting technique with varying weight fractions of graphite and SiC particles based on Taguchi's design of experiments. Charpy impact tests were conducted using a specialised testing machine. The results reveal that the impact energy absorption capacity of the composites is influenced by the cooling method used after the ageing treatment. Furnace cooling demonstrated the highest impact energy absorption capacity compared to the other cooling methods, exhibiting a 28% increase relative to the monolithic aluminium alloy. Furthermore, it was observed that the impact energy absorption capacity of the composites did not improve with an increase in the weight fraction of SiC particles, while the addition of graphite negatively impacted the absorption capacity |
| format | Article |
| id | doaj-art-aa56f866d07f412da4392806347e49eb |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-aa56f866d07f412da4392806347e49eb2025-02-03T10:44:05ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932023-10-01176626127210.3221/IGF-ESIS.66.1610.3221/IGF-ESIS.66.16Investigation of impact energy absorption of AA6061 and its composites: role of post-aging cooling methodsG. V. Krishna ReddyB. K. Naveen KumarG. HareeshaA. M. RajeshSaleemsab DoddamaniAl6061 and its composites are widely employed in applications requiring high strength and impact resistance. Heat treatment, particularly ageing, is a well-established method for enhancing the mechanical properties of these composites. However, the influence of post-ageing cooling methods on the impact energy absorption capacity of Al6061 and its composites is not well understood. This investigation aims to examine the impact energy absorption of Al6061 and its composites after ageing at 460�C for 2 hours, employing different cooling methods, including furnace cooling, air cooling, and water cooling. The composites were produced using the stir casting technique with varying weight fractions of graphite and SiC particles based on Taguchi's design of experiments. Charpy impact tests were conducted using a specialised testing machine. The results reveal that the impact energy absorption capacity of the composites is influenced by the cooling method used after the ageing treatment. Furnace cooling demonstrated the highest impact energy absorption capacity compared to the other cooling methods, exhibiting a 28% increase relative to the monolithic aluminium alloy. Furthermore, it was observed that the impact energy absorption capacity of the composites did not improve with an increase in the weight fraction of SiC particles, while the addition of graphite negatively impacted the absorption capacityhttps://www.fracturae.com/index.php/fis/article/view/4449/3893metal matrix compositeal-graphite compositeimpact energyal-sicpost-ageing cooling |
| spellingShingle | G. V. Krishna Reddy B. K. Naveen Kumar G. Hareesha A. M. Rajesh Saleemsab Doddamani Investigation of impact energy absorption of AA6061 and its composites: role of post-aging cooling methods Fracture and Structural Integrity metal matrix composite al-graphite composite impact energy al-sic post-ageing cooling |
| title | Investigation of impact energy absorption of AA6061 and its composites: role of post-aging cooling methods |
| title_full | Investigation of impact energy absorption of AA6061 and its composites: role of post-aging cooling methods |
| title_fullStr | Investigation of impact energy absorption of AA6061 and its composites: role of post-aging cooling methods |
| title_full_unstemmed | Investigation of impact energy absorption of AA6061 and its composites: role of post-aging cooling methods |
| title_short | Investigation of impact energy absorption of AA6061 and its composites: role of post-aging cooling methods |
| title_sort | investigation of impact energy absorption of aa6061 and its composites role of post aging cooling methods |
| topic | metal matrix composite al-graphite composite impact energy al-sic post-ageing cooling |
| url | https://www.fracturae.com/index.php/fis/article/view/4449/3893 |
| work_keys_str_mv | AT gvkrishnareddy investigationofimpactenergyabsorptionofaa6061anditscompositesroleofpostagingcoolingmethods AT bknaveenkumar investigationofimpactenergyabsorptionofaa6061anditscompositesroleofpostagingcoolingmethods AT ghareesha investigationofimpactenergyabsorptionofaa6061anditscompositesroleofpostagingcoolingmethods AT amrajesh investigationofimpactenergyabsorptionofaa6061anditscompositesroleofpostagingcoolingmethods AT saleemsabdoddamani investigationofimpactenergyabsorptionofaa6061anditscompositesroleofpostagingcoolingmethods |