Tensile properties and fracture characteristics of ECAP-processed Al and Al-Cu alloys

Mohamed Ibrahim Abd El Aal; Nahed El Mahallawy; Farouk A. Shehata; Mohamed Abd El Hameed; Eun Yoo Yoon; Jung Hwan Lee; Hyoung Seop Kim

doi:10.1007/s12540-010-1003-x

Tensile properties and fracture characteristics of ECAP-processed Al and Al-Cu alloys

Mohamed Ibrahim Abd El Aal, Nahed El Mahallawy, Farouk A. Shehata, Mohamed Abd El Hameed, Eun Yoo Yoon, Jung Hwan Lee, Hyoung Seop Kim

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

44 Scopus citations

Abstract

In the present paper, billets of pure Al, and cast-homogenized Al-2 wt.%, 3 wt.%, and 5 wt.% Cu alloys were successfully processed by equal channel angular pressing (ECAP) up to 10 passes without fracture at room temperature using a die with a channel angle of 110°. Giant strains imposed on workpieces lead to extreme dislocation densities, microstructural refinement, and finally ultrafme grained materials. Tensile tests were employed to examine the fracture modes and fracture surface morphologies of the ECAP-processed Al and Al-Cu alloy samples. In particular, the effects of the number of ECAP passes and the Cu content were investigated.

Original language	English
Pages (from-to)	709-716
Number of pages	8
Journal	Metals and Materials International
Volume	16
Issue number	5
DOIs	https://doi.org/10.1007/s12540-010-1003-x
State	Published - Oct 2010
Externally published	Yes

Keywords

Al
Al-Cu alloy
Equal channel angular pressing
Fracture mode
Severe plastic deformation

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10.1007/s12540-010-1003-x

Cite this

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title = "Tensile properties and fracture characteristics of ECAP-processed Al and Al-Cu alloys",

abstract = "In the present paper, billets of pure Al, and cast-homogenized Al-2 wt.\%, 3 wt.\%, and 5 wt.\% Cu alloys were successfully processed by equal channel angular pressing (ECAP) up to 10 passes without fracture at room temperature using a die with a channel angle of 110°. Giant strains imposed on workpieces lead to extreme dislocation densities, microstructural refinement, and finally ultrafme grained materials. Tensile tests were employed to examine the fracture modes and fracture surface morphologies of the ECAP-processed Al and Al-Cu alloy samples. In particular, the effects of the number of ECAP passes and the Cu content were investigated.",

keywords = "Al, Al-Cu alloy, Equal channel angular pressing, Fracture mode, Severe plastic deformation",

author = "\{Abd El Aal\}, \{Mohamed Ibrahim\} and \{El Mahallawy\}, Nahed and Shehata, \{Farouk A.\} and \{El Hameed\}, \{Mohamed Abd\} and Yoon, \{Eun Yoo\} and Lee, \{Jung Hwan\} and Kim, \{Hyoung Seop\}",

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T1 - Tensile properties and fracture characteristics of ECAP-processed Al and Al-Cu alloys

AU - Abd El Aal, Mohamed Ibrahim

AU - El Mahallawy, Nahed

AU - Shehata, Farouk A.

AU - El Hameed, Mohamed Abd

AU - Yoon, Eun Yoo

AU - Lee, Jung Hwan

AU - Kim, Hyoung Seop

PY - 2010/10

Y1 - 2010/10

N2 - In the present paper, billets of pure Al, and cast-homogenized Al-2 wt.%, 3 wt.%, and 5 wt.% Cu alloys were successfully processed by equal channel angular pressing (ECAP) up to 10 passes without fracture at room temperature using a die with a channel angle of 110°. Giant strains imposed on workpieces lead to extreme dislocation densities, microstructural refinement, and finally ultrafme grained materials. Tensile tests were employed to examine the fracture modes and fracture surface morphologies of the ECAP-processed Al and Al-Cu alloy samples. In particular, the effects of the number of ECAP passes and the Cu content were investigated.

AB - In the present paper, billets of pure Al, and cast-homogenized Al-2 wt.%, 3 wt.%, and 5 wt.% Cu alloys were successfully processed by equal channel angular pressing (ECAP) up to 10 passes without fracture at room temperature using a die with a channel angle of 110°. Giant strains imposed on workpieces lead to extreme dislocation densities, microstructural refinement, and finally ultrafme grained materials. Tensile tests were employed to examine the fracture modes and fracture surface morphologies of the ECAP-processed Al and Al-Cu alloy samples. In particular, the effects of the number of ECAP passes and the Cu content were investigated.

KW - Al

KW - Al-Cu alloy

KW - Equal channel angular pressing

KW - Fracture mode

KW - Severe plastic deformation

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U2 - 10.1007/s12540-010-1003-x

DO - 10.1007/s12540-010-1003-x

M3 - Article

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SN - 1598-9623

VL - 16

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EP - 716

JO - Metals and Materials International

JF - Metals and Materials International

IS - 5

ER -

Tensile properties and fracture characteristics of ECAP-processed Al and Al-Cu alloys

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Keywords

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