| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
2024 Undergraduate Student Poster Contest
|
| Presentation Title |
SPU-21: The Effects of Corrugated Groove Pressing on Heterogenous Microstructure and Mechanical Properties in Copper Plates |
| Author(s) |
Alex R. Brown, David P Field |
| On-Site Speaker (Planned) |
Alex R. Brown |
| Abstract Scope |
Corrugated Groove Pressing (CGP) is a coldworking process used to plastically deform metal plates while maintaining the original dimensions. The objective of this research is to use CGP as a severe plastic deformation (SPD) technique to generate a heterogeneous microstructure with improved mechanical properties. Numerous 1.67 mm thick copper plates were sectioned, annealed, pressed by the unique CGP dies, and flattened. The plates were then cut into ASTM subsize dog bones with a reduction in grip length. Tensile testing with Digital Image Correlation (DIC) was used to evaluate the tensile properties. Portions of the copper were sectioned, mounted in resin, and polished for Electron Backscatter Diffraction (EBSD). The EBSD scans revealed that the pressed plates have regions of high Kernal Average Misorientation (KAM) and low KAM regions. CGP generates regions of high deformation and low deformation that repeat periodically. This periodic pattern results in a heterogeneous microstructure in the copper. |