About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Processing and Characterization
|
Presentation Title |
E-8: Experimental and Modelling Investigation of Oxide Layer Fragmentation and Metal
Micro-extrusion Behavior during Cold Rolling of Aluminum Alloy
|
Author(s) |
Mahsa Navidirad, John Plumeri, Wojciech Misiolek, Masashi Watanabe, Wojciech Stepniowski |
On-Site Speaker (Planned) |
Mahsa Navidirad |
Abstract Scope |
Physical experimentation and modelling approaches of bond rolling of aluminum strips were investigated in this study. For better monitoring of oxide fragmentation and metal micro-extrusion behavior, the surfaces of the strips were deliberately covered by aluminum oxide layer with three different thicknesses through anodizing process. A progressive reduction per pass ranging from 2% to 70% was implemented on sandwiches made out of two clamped coated aluminum strips. The evolution of cracks on the oxide coatings as well as the height of metal micro-extrusion through the cracks as function of deformation and oxide thickness were characterized using electron microscopy. A numerical model of the rolling process was constructed utilizing DEFORM-3D software, wherein strain, strain rate, and stress fields were calculated for each condition. The calculated strain distribution reinforced with experimental data was used to develop criteria for oxide layer fracture, metal flow behavior and bonding between cold rolled aluminum alloy strips. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Joining, Recycling and Secondary Recovery |