Influence of aging time to achieve tensile build direction heat treated T74 forging properties in lubricant free AFSD AA7050
The need for long-lead time aluminum alloy casting and forging replacements requires innovative solutions such as Additive Friction Stir Deposition (AFSD), a solid-state additive manufacturing technique that uses frictional heat and severe plastic deformation to create metallurgical bonds through la...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Additive Manufacturing Letters |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772369025000301 |
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| author | I. Liu J. Hoarston N. Zhu A. Birt N. Palya B. Slote B.J. Phillips D.Z. Avery P.G. Allison J.B. Jordon |
| author_facet | I. Liu J. Hoarston N. Zhu A. Birt N. Palya B. Slote B.J. Phillips D.Z. Avery P.G. Allison J.B. Jordon |
| author_sort | I. Liu |
| collection | DOAJ |
| description | The need for long-lead time aluminum alloy casting and forging replacements requires innovative solutions such as Additive Friction Stir Deposition (AFSD), a solid-state additive manufacturing technique that uses frictional heat and severe plastic deformation to create metallurgical bonds through layer-by-layer deposition. While AFSD has demonstrated isotropic mechanical properties in the as-deposited condition, post-deposition heat treatment (PDHT) of precipitation hardened aluminum alloys processed by AFSD has led to poor ductility, particularly in the build direction. In this feasibility study, a lubricant-free twin rod AFSD (TR-AFSD) approach printed a 100 millimeter tall AA7050 build. Mechanical properties in the build direction were determined for a range of artificial aging times. Experimental results showed that a one hour aging time following a 24-hour solution treatment produced tensile yield, ultimate tensile strength, and strain to failure results of 360 ± 5.5 MPa, 463 ± 10.3 MPa, and 7.55 ± 2.00 %, respectively. Our feasibility study shows that forging-like tensile properties can be achieved in the build direction from TR-AFSD prints using a featureless tool coupled with a temperature control lubricant-free round feedstock approach and a custom PDHT schedule. |
| format | Article |
| id | doaj-art-0ab07fc293ee46a59ee64fd59bb9f66a |
| institution | Kabale University |
| issn | 2772-3690 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Additive Manufacturing Letters |
| spelling | doaj-art-0ab07fc293ee46a59ee64fd59bb9f66a2025-08-21T04:17:51ZengElsevierAdditive Manufacturing Letters2772-36902025-07-011410029610.1016/j.addlet.2025.100296Influence of aging time to achieve tensile build direction heat treated T74 forging properties in lubricant free AFSD AA7050I. Liu0J. Hoarston1N. Zhu2A. Birt3N. Palya4B. Slote5B.J. Phillips6D.Z. Avery7P.G. Allison8J.B. Jordon9Point-of-Need Innovations Center, Baylor University, Waco, TX, USAPoint-of-Need Innovations Center, Baylor University, Waco, TX, USAPoint-of-Need Innovations Center, Baylor University, Waco, TX, USASolvus Global, Worcester, MA, USASolvus Global, Worcester, MA, USASolvus Global, Worcester, MA, USAU.S. Army Combat Capabilities Development Command Aviation & Missile Center, Redstone Arsenal, AL, USAU.S. Army Combat Capabilities Development Command Aviation & Missile Center, Redstone Arsenal, AL, USAPoint-of-Need Innovations Center, Baylor University, Waco, TX, USA; Department of Mechanical Engineering, Baylor University, Waco, TX, USAPoint-of-Need Innovations Center, Baylor University, Waco, TX, USA; Department of Mechanical Engineering, Baylor University, Waco, TX, USA; Corresponding author.The need for long-lead time aluminum alloy casting and forging replacements requires innovative solutions such as Additive Friction Stir Deposition (AFSD), a solid-state additive manufacturing technique that uses frictional heat and severe plastic deformation to create metallurgical bonds through layer-by-layer deposition. While AFSD has demonstrated isotropic mechanical properties in the as-deposited condition, post-deposition heat treatment (PDHT) of precipitation hardened aluminum alloys processed by AFSD has led to poor ductility, particularly in the build direction. In this feasibility study, a lubricant-free twin rod AFSD (TR-AFSD) approach printed a 100 millimeter tall AA7050 build. Mechanical properties in the build direction were determined for a range of artificial aging times. Experimental results showed that a one hour aging time following a 24-hour solution treatment produced tensile yield, ultimate tensile strength, and strain to failure results of 360 ± 5.5 MPa, 463 ± 10.3 MPa, and 7.55 ± 2.00 %, respectively. Our feasibility study shows that forging-like tensile properties can be achieved in the build direction from TR-AFSD prints using a featureless tool coupled with a temperature control lubricant-free round feedstock approach and a custom PDHT schedule.http://www.sciencedirect.com/science/article/pii/S2772369025000301 |
| spellingShingle | I. Liu J. Hoarston N. Zhu A. Birt N. Palya B. Slote B.J. Phillips D.Z. Avery P.G. Allison J.B. Jordon Influence of aging time to achieve tensile build direction heat treated T74 forging properties in lubricant free AFSD AA7050 Additive Manufacturing Letters |
| title | Influence of aging time to achieve tensile build direction heat treated T74 forging properties in lubricant free AFSD AA7050 |
| title_full | Influence of aging time to achieve tensile build direction heat treated T74 forging properties in lubricant free AFSD AA7050 |
| title_fullStr | Influence of aging time to achieve tensile build direction heat treated T74 forging properties in lubricant free AFSD AA7050 |
| title_full_unstemmed | Influence of aging time to achieve tensile build direction heat treated T74 forging properties in lubricant free AFSD AA7050 |
| title_short | Influence of aging time to achieve tensile build direction heat treated T74 forging properties in lubricant free AFSD AA7050 |
| title_sort | influence of aging time to achieve tensile build direction heat treated t74 forging properties in lubricant free afsd aa7050 |
| url | http://www.sciencedirect.com/science/article/pii/S2772369025000301 |
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