About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing: Beyond the Beam III
|
Presentation Title |
Effect of Laser Heating on Microstructure and Deposition Properties of Cold Sprayed SS304L |
Author(s) |
Christopher M. Roper, Anita Heczel, Venkata Satish Bhattiprolu, Jeno Gubicza, Tamas Kolonits, Luke N Brewer |
On-Site Speaker (Planned) |
Christopher M. Roper |
Abstract Scope |
The effects of laser heating on the microstructure and mechanical properties of cold sprayed 304L stainless steel (SS304L) was investigated. Three SS304L cold sprayed samples were made, then two samples were laser heated post cold spray to 750℃ and 950℃. The resulting microstructure and mechanical properties were studied. Electron backscatter diffraction (EBSD) and X-ray line profile analysis (XLPA) were used to determine the microstructure and dislocation density in the three depositions both near the surface of the deposition and near the interface of the deposition with the substrate. It was found that laser heating caused recrystallization in the material and ultimately grain growth, which correlated with a significant decrease in dislocation density in the material and a reduction in hardness for the laser heated deposits. This points to the ability of laser surface heating for effective microstructural manipulation of cold sprayed materials. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Powder Materials, Characterization |