| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
A-55: Cold Spray Deposition of Aluminum onto Polymer and Composite Substrates |
| Author(s) |
Reza Rokni, Po-Lun Feng, Steve Nutt |
| On-Site Speaker (Planned) |
Reza Rokni |
| Abstract Scope |
Fully dense CS deposits of 7075 Al and commercial purity (CP) Al were achieved on PEEK, PEI, and PEKK 30% carbon fiber substrates, using an iterative optimization process. For CS onto thermoplastic substrates, 7075 Al deposits showed low deposition efficiencies (DEs) and low thicknesses but high adhesive strengths, while CP Al deposition resulted in high DEs and thicknesses but relatively low adhesive strengths. For CS onto PEKK 30% carbon fiber, deposition with N2 led to greater thicknesses (e.g., greater DEs) and adhesive strengths compared to using He. These variations are influenced by two main factors. The first factor is the differences in material properties between coating and substrate, which can affect the depth of penetration of impacting particles and residual stress at coating/substrate interface. The second factor is the selected CS process parameters because first few layers and build-up layers may require different process conditions. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |