About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Microstructural Control in Materials Processing: Role of Phase Transformation Pathways
|
| Presentation Title |
In situ characterization of plastic flow and strain field in metal peeling |
| Author(s) |
Ashish Devkota, Prabhakar R. Pagilla, Dinakar R. Sagapuram |
| On-Site Speaker (Planned) |
Ashish Devkota |
| Abstract Scope |
Metal peeling is a novel large-strain deformation processing method for producing thin metal strips and foils in a single step via orthogonal cutting under controlled tension. In contrast to conventional machining, the application of a slight “pull” or tension on the strip while peeling allows for finer control of the strip geometry, strain and microstructure. This talk presents new findings from an in-situ study undertaken to understand the effect of tension on peeling mechanics. High-speed imaging and particle image velocimetry are used to quantitatively characterize the material flow and deformation field in the peeling zone at high resolution. Observations pertaining to the plastic flow, deformation field geometry, strain path and magnitude as a function of tension will be presented using lead and copper alloys as model systems. How material flows and deformation field characteristics in the peeling zone affect the final strip surface morphology and microstructure will be also discussed. |