About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-83: Enhanced Work Hardening in 6061 Aluminum Alloy/Al2O3 Nanolaminate |
| Author(s) |
Jeongbin Park, Zion Lee, JungHun Park, Zhuo Feng Lee, Gi-Dong Sim |
| On-Site Speaker (Planned) |
Jeongbin Park |
| Abstract Scope |
Multilayer materials have garnered significant attention due to their exceptional mechanical properties. However, nanostructured films often suffer from low work hardening rate; this triggers strain localization and premature cracking, which compromises the functional durability of coatings under external deformation.
In this study, we investigated the tensile behavior of a lightweight-alloy-based nanolaminate structure consisting of 16 alternating layers of 6061 aluminum alloy(40nm) and Al2O3(10nm) with a total thickness of 400 nm, fabricated via magnetron sputtering. The nanolaminate film exhibited a high work hardening rate of 45.4GPa, representing a remarkable enhancement compared to monolithic 6061AA films(9.57GPa). This enhancement is attributed to the effective constraint of dislocation motion at the metal-ceramic interfaces and the resulting increase in dislocation density. These findings provide critical insights into tailoring the strength and work hardening rate of nanostructured films, establishing a fundamental basis for highly durable protective coatings and advanced functional thin films. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Aluminum, Thin Films and Interfaces, Mechanical Properties |