| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Laser Manufacturing of High-Performance Materials
|
| Presentation Title |
Microstructural Evolution in Austenitic Stainless Steels During Laser Sheet Metal Forming |
| Author(s) |
Tianchen Wei, Nathan Fripp, Benjamin A. Begley, Benjamin T. Anthony, Victoria M Miller |
| On-Site Speaker (Planned) |
Tianchen Wei |
| Abstract Scope |
Laser sheet metal forming is an advanced line heating technique used to bend or fold flat sheet metal into complex geometries. This method employs a laser beam to induce a temperature gradient, generating thermal stresses that cause plastic deformation. Predicting the bending behavior in this process remains a challenge. In this study, large- and small-grained specimens of AISI 304 and AISI 330 austenitic stainless steels were laser-formed using identical laser parameters. Additionally, specimens were tested in different material directions within the plane of the sheet (rolling direction and transverse direction). The results indicated that grain boundaries impeded bending, whilst textured specimens exhibited anisotropic bending behaviors. Post-forming microstructures were characterized using electron backscatter diffraction (EBSD), revealing distinct microstructural regions, including evidence of strain hardening and recrystallization. Understanding the influence of material characteristics and microstructural evolution can enhance control over the laser forming process. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Shaping and Forming, Characterization, Iron and Steel |