Improving mechanical properties of chip-based aluminum extrudates by integrated extrusion and equal channel angular pressing (iECAP)
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In: Materials Science & Engineering A, Vol. 539, 30.03.2012, p. 194-204.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Improving mechanical properties of chip-based aluminum extrudates by integrated extrusion and equal channel angular pressing (iECAP)
AU - Haase, M.
AU - Ben Khalifa, N.
AU - Tekkaya, A. E.
AU - Misiolek, W. Z.
PY - 2012/3/30
Y1 - 2012/3/30
N2 - 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.
AB - 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.
KW - Aluminum alloy recycling
KW - Chip extrusion
KW - Die design
KW - Equal channel angular pressing (ECAP)
KW - Mechanical properties
KW - Microstructure
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84857626087&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2012.01.081
DO - 10.1016/j.msea.2012.01.081
M3 - Journal articles
AN - SCOPUS:84857626087
VL - 539
SP - 194
EP - 204
JO - Materials Science & Engineering A
JF - Materials Science & Engineering A
SN - 0921-5093
ER -