Deformation field variations in equal channel angular extrusion due to back pressure

Arman Hasani; R. Lapovok; L.S. Toth; A. Molinari

doi:10.1016/j.scriptamat.2007.12.018

Deformation field variations in equal channel angular extrusion due to back pressure

Arman Hasani, R. Lapovok, L.S. Toth, A. Molinari

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

Flow lines were analysed in aluminium alloy 6061 during equal channel angular extrusion (ECAE) in a 90° die with and without the application of back pressure during pressing. The lines appeared much more rounded when a back pressure was applied compared to the case of conventional ECAE testing. With the help of an analytic flow function, the deformation field was obtained. It is shown that back pressure slightly lowers the total strain, strongly increases the size of the plastic zone and significantly reduces the plastic strain rate.

Original language	English
Pages (from-to)	771-774
Journal	Scripta Materialia
Volume	58
Issue number	9
DOIs	https://doi.org/10.1016/j.scriptamat.2007.12.018
Publication status	Published - 2008

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10.1016/j.scriptamat.2007.12.018

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title = "Deformation field variations in equal channel angular extrusion due to back pressure",

abstract = "Flow lines were analysed in aluminium alloy 6061 during equal channel angular extrusion (ECAE) in a 90° die with and without the application of back pressure during pressing. The lines appeared much more rounded when a back pressure was applied compared to the case of conventional ECAE testing. With the help of an analytic flow function, the deformation field was obtained. It is shown that back pressure slightly lowers the total strain, strongly increases the size of the plastic zone and significantly reduces the plastic strain rate.",

author = "Arman Hasani and R. Lapovok and L.S. Toth and A. Molinari",

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AU - Hasani, Arman

AU - Lapovok, R.

AU - Toth, L.S.

AU - Molinari, A.

PY - 2008

Y1 - 2008

N2 - Flow lines were analysed in aluminium alloy 6061 during equal channel angular extrusion (ECAE) in a 90° die with and without the application of back pressure during pressing. The lines appeared much more rounded when a back pressure was applied compared to the case of conventional ECAE testing. With the help of an analytic flow function, the deformation field was obtained. It is shown that back pressure slightly lowers the total strain, strongly increases the size of the plastic zone and significantly reduces the plastic strain rate.

AB - Flow lines were analysed in aluminium alloy 6061 during equal channel angular extrusion (ECAE) in a 90° die with and without the application of back pressure during pressing. The lines appeared much more rounded when a back pressure was applied compared to the case of conventional ECAE testing. With the help of an analytic flow function, the deformation field was obtained. It is shown that back pressure slightly lowers the total strain, strongly increases the size of the plastic zone and significantly reduces the plastic strain rate.

U2 - 10.1016/j.scriptamat.2007.12.018

DO - 10.1016/j.scriptamat.2007.12.018

M3 - Article

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VL - 58

SP - 771

EP - 774

JO - Scripta Materialia

JF - Scripta Materialia

IS - 9

ER -

Deformation field variations in equal channel angular extrusion due to back pressure

Abstract

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