About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing Fatigue and Fracture: Effects of Surface Roughness, Residual Stress, and Environment
|
Presentation Title |
Role of the Oxide Layer in Cold Sprayed Metallic Structures |
Author(s) |
Mobin Vandadi, Nima Rahbar, Winston Soboyejo |
On-Site Speaker (Planned) |
Mobin Vandadi |
Abstract Scope |
The lightweight of aluminum alloys and incredible properties of titanium alloys make them desirable for many applications. Additive manufacturing is one of the fastest and easiest methods for making new parts and cold spray is a new method in this field. In this method, micron size particles are accelerated towards the substrate, and this will result in bonding. There are many parameters that are influential in efficiency of this method such as the velocity and size of particles, temperature, etc.; however, a less studied parameter is the oxide layers on the substrate and powders. The oxide layer is a hard and brittle layer that does not bond as well as the underlying metal. In this work, first the failure of the oxide layers of both aluminum and titanium is studied using molecular dynamics. Next, FEA is used to study the effect oxide on the efficiency of the cold spray deposition. |
Proceedings Inclusion? |
Planned: |