| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering II
|
| Presentation Title |
Laser Assisted Cold Spray Applied to Austenitic Stainless Steel |
| Author(s) |
Venkata Satish Bhattiprolu, Luke N Brewer |
| On-Site Speaker (Planned) |
Venkata Satish Bhattiprolu |
| Abstract Scope |
This presentation will show the microstructural and mechanical response of 304 stainless steel material produced by the laser assisted cold spray (LACS) process. LACS involves in situ laser heating of supersonically sprayed metallic powder in the particle size range 40-50 µm in diameter. In the recent past, cold spray has been implemented with good success for additive repair of various metallic components. Cold sprayed stainless steel often possesses limited ductility due to extensive strain hardening during the particle impact process. To enhance ductility, we have deposited 304 stainless steel using high pressure nitrogen gas spray, while applying in situ laser heating. Detailed analysis employing electron microscopy, diffraction, and micro/nanohardness are being used to capture the mechanical response and evolution of the microstructure. We will present initial results showing the ability of the laser heating to recrystallize the cold sprayed particle microstructure, in turn improving the ductility of the coating. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |