| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Cold Spray Additive Manufacturing: Part Quality and Performance
|
| Presentation Title |
Engineering Boron Nitride Reinforcement for Strengthening Cold Sprayed Aluminum Deposits |
| Author(s) |
Arvind Agarwal |
| On-Site Speaker (Planned) |
Arvind Agarwal |
| Abstract Scope |
The absence of understanding of deformation mechanisms in individual aluminum (Al) splats and at their interface with secondary reinforcements is a major obstacle in engineering large-scale, high-strength cold-sprayed deposits. This paper investigates integrating Al splats with boron nitride nanotubes (BNNTs) and their role in the deformation of bulk cold-sprayed deposits. Transmission electron microscopy showed the intimate wetting of deagglomerated BNNTs within individual Al splats. It transcended to bridging multiple splats by the same BNNT to provide resistance against splat sliding. Wetting of BNNTs, along with splat anchoring, enhanced the strength of the deposits by 7%. The BNNT-anchored splats also resisted abrasion to reduce the coefficient of friction by 20%. Scientific knowledge of these fundamental mechanisms thus encompasses a significant advancement in the additive manufacturing of cold-sprayed deposits for high-strength and wear-resistant structural applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Composites, Mechanical Properties |