Effect of predeformation and heat treatment conditions in the SIMA process on microstructural and mechanical properties of A319 aluminum alloy

Hamed Arami; Razieh Khalifehzadeh; Hamed Keyvan; Farzad Khomamizadeh

doi:10.1016/j.jallcom.2008.01.020

Effect of predeformation and heat treatment conditions in the SIMA process on microstructural and mechanical properties of A319 aluminum alloy

Hamed Arami, Razieh Khalifehzadeh, Hamed Keyvan, Farzad Khomamizadeh

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

28 Scopus citations

Abstract

In this study the influences of predeformation and heat treatment conditions on stress-induced melt activating process (SIMA) of A319 aluminum alloy were investigated. At 30% of predeformation a dominant globular structure of grains was obtained. However, further increasing of the predeformation rate considerably reduced the shape factor. The holding time of 10-15 min at semi-solid temperature of 580 °C was suggested in order to prevent grain growth. Coarsening of the grains by excess time or temperature of heat treatment reduced the tensile strength of the alloy.

Original language	English (US)
Pages (from-to)	130-135
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	468
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.01.020
State	Published - Jan 22 2009
Externally published	Yes

Keywords

Mechanical properties
Metallography
Metals and alloys
Microstructure

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2008.01.020

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title = "Effect of predeformation and heat treatment conditions in the SIMA process on microstructural and mechanical properties of A319 aluminum alloy",

abstract = "In this study the influences of predeformation and heat treatment conditions on stress-induced melt activating process (SIMA) of A319 aluminum alloy were investigated. At 30% of predeformation a dominant globular structure of grains was obtained. However, further increasing of the predeformation rate considerably reduced the shape factor. The holding time of 10-15 min at semi-solid temperature of 580 °C was suggested in order to prevent grain growth. Coarsening of the grains by excess time or temperature of heat treatment reduced the tensile strength of the alloy.",

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author = "Hamed Arami and Razieh Khalifehzadeh and Hamed Keyvan and Farzad Khomamizadeh",

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T1 - Effect of predeformation and heat treatment conditions in the SIMA process on microstructural and mechanical properties of A319 aluminum alloy

AU - Arami, Hamed

AU - Khalifehzadeh, Razieh

AU - Keyvan, Hamed

AU - Khomamizadeh, Farzad

PY - 2009/1/22

Y1 - 2009/1/22

N2 - In this study the influences of predeformation and heat treatment conditions on stress-induced melt activating process (SIMA) of A319 aluminum alloy were investigated. At 30% of predeformation a dominant globular structure of grains was obtained. However, further increasing of the predeformation rate considerably reduced the shape factor. The holding time of 10-15 min at semi-solid temperature of 580 °C was suggested in order to prevent grain growth. Coarsening of the grains by excess time or temperature of heat treatment reduced the tensile strength of the alloy.

AB - In this study the influences of predeformation and heat treatment conditions on stress-induced melt activating process (SIMA) of A319 aluminum alloy were investigated. At 30% of predeformation a dominant globular structure of grains was obtained. However, further increasing of the predeformation rate considerably reduced the shape factor. The holding time of 10-15 min at semi-solid temperature of 580 °C was suggested in order to prevent grain growth. Coarsening of the grains by excess time or temperature of heat treatment reduced the tensile strength of the alloy.

KW - Mechanical properties

KW - Metallography

KW - Metals and alloys

KW - Microstructure

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DO - 10.1016/j.jallcom.2008.01.020

M3 - Article

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SN - 0925-8388

VL - 468

SP - 130

EP - 135

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Effect of predeformation and heat treatment conditions in the SIMA process on microstructural and mechanical properties of A319 aluminum alloy

Abstract

Keywords

ASJC Scopus subject areas

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