Improving mechanical properties of chip-based aluminum extrudates by integrated extrusion and equal channel angular pressing (iECAP)
Research output: Journal contributions › Journal articles › Research › peer-review
Authors
In order to improve the mechanical properties of profiles extruded from aluminum chips, a four turn equal channel angular pressing tool was integrated into an extrusion die (iECAP die). AA6060 aluminum alloy turning chips were cold pre-compacted to chip-based billets and hot extruded through the iECAP die on a conventional forward extrusion press. Mechanical properties and microstructure of the chip-based billets extruded through the iECAP die were investigated and compared to those extruded through a conventional flat-face die and a porthole die. To evaluate the performance of the iECAP processed chip-based profiles, conventional cast billets were extruded through the flat-face die as a reference material. To investigate the influence of temperature on mechanical properties and microstructure of chip-based profiles, the extrusion was performed at 450. °C and 550. °C.Tensile tests revealed superior mechanical properties of the chip-based billets extruded through the iECAP die in comparison to chip-based billets extruded through the flat-face and the porthole die as well as to cast billets extruded through the flat-face die.
Original language | English |
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Journal | Materials Science & Engineering A |
Volume | 539 |
Pages (from-to) | 194-204 |
Number of pages | 11 |
ISSN | 0921-5093 |
DOIs | |
Publication status | Published - 30.03.2012 |
Externally published | Yes |
- Aluminum alloy recycling, Chip extrusion, Die design, Equal channel angular pressing (ECAP), Mechanical properties, Microstructure
- Engineering