Refinement effects of steady electric field on primary α-Al in solidification microstructures of aluminum alloys

Yong Zhang; Hongsheng Ding; Jun Liu; Fanqi Meng; Honghui Liu

Refinement effects of steady electric field on primary α-Al in solidification microstructures of aluminum alloys

Yong Zhang^*
, Hongsheng Ding
, Jun Liu
, Fanqi Meng
, Honghui Liu

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Dongan Engine (Group) Co. Ltd.

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

Abstract

Through exerting a steady electric field on Al-9Si binary alloy in the mushy zone and liquid phase zone above liquidus, influence of electric field on the morphology and size of the primary α-Al in solidification microstructures of aluminum alloy was investigated. Temperature data during the cooling process of Al-9Si melt was measured and collected with temperature recording instrument XJY-160, and the solidification microstructure was analyzed by OM (optical microscope) and Image pro plus software. The results show that with the increase of current density, the size of primary a grains are decreased first rapidly and then slowly under a steady electric field, and critical current density is 330 mA · mm^-2. Both the Pinch effect and thermoelectric magnetohydrodynamic (TEMHD) caused by steady electric field are responsible for restraining dendirtic growth of the primary α-Al grains in the Al-9Si alloy.

Original language	English
Pages (from-to)	197-200
Number of pages	4
Journal	Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys
Volume	33
Issue number	3
State	Published - Mar 2013

Keywords

Aluminum alloy
Primary α-Al phase
Solidification microstructures
Steady electric field

Cite this

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title = "Refinement effects of steady electric field on primary α-Al in solidification microstructures of aluminum alloys",

abstract = "Through exerting a steady electric field on Al-9Si binary alloy in the mushy zone and liquid phase zone above liquidus, influence of electric field on the morphology and size of the primary α-Al in solidification microstructures of aluminum alloy was investigated. Temperature data during the cooling process of Al-9Si melt was measured and collected with temperature recording instrument XJY-160, and the solidification microstructure was analyzed by OM (optical microscope) and Image pro plus software. The results show that with the increase of current density, the size of primary a grains are decreased first rapidly and then slowly under a steady electric field, and critical current density is 330 mA · mm-2. Both the Pinch effect and thermoelectric magnetohydrodynamic (TEMHD) caused by steady electric field are responsible for restraining dendirtic growth of the primary α-Al grains in the Al-9Si alloy.",

keywords = "Aluminum alloy, Primary α-Al phase, Solidification microstructures, Steady electric field",

author = "Yong Zhang and Hongsheng Ding and Jun Liu and Fanqi Meng and Honghui Liu",

year = "2013",

month = mar,

language = "英语",

volume = "33",

pages = "197--200",

journal = "Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys",

issn = "1001-2249",

publisher = "Journal Office of Special Casting and Nonferrous Alloys",

number = "3",

}

TY - JOUR

T1 - Refinement effects of steady electric field on primary α-Al in solidification microstructures of aluminum alloys

AU - Zhang, Yong

AU - Ding, Hongsheng

AU - Liu, Jun

AU - Meng, Fanqi

AU - Liu, Honghui

PY - 2013/3

Y1 - 2013/3

N2 - Through exerting a steady electric field on Al-9Si binary alloy in the mushy zone and liquid phase zone above liquidus, influence of electric field on the morphology and size of the primary α-Al in solidification microstructures of aluminum alloy was investigated. Temperature data during the cooling process of Al-9Si melt was measured and collected with temperature recording instrument XJY-160, and the solidification microstructure was analyzed by OM (optical microscope) and Image pro plus software. The results show that with the increase of current density, the size of primary a grains are decreased first rapidly and then slowly under a steady electric field, and critical current density is 330 mA · mm-2. Both the Pinch effect and thermoelectric magnetohydrodynamic (TEMHD) caused by steady electric field are responsible for restraining dendirtic growth of the primary α-Al grains in the Al-9Si alloy.

AB - Through exerting a steady electric field on Al-9Si binary alloy in the mushy zone and liquid phase zone above liquidus, influence of electric field on the morphology and size of the primary α-Al in solidification microstructures of aluminum alloy was investigated. Temperature data during the cooling process of Al-9Si melt was measured and collected with temperature recording instrument XJY-160, and the solidification microstructure was analyzed by OM (optical microscope) and Image pro plus software. The results show that with the increase of current density, the size of primary a grains are decreased first rapidly and then slowly under a steady electric field, and critical current density is 330 mA · mm-2. Both the Pinch effect and thermoelectric magnetohydrodynamic (TEMHD) caused by steady electric field are responsible for restraining dendirtic growth of the primary α-Al grains in the Al-9Si alloy.

KW - Aluminum alloy

KW - Primary α-Al phase

KW - Solidification microstructures

KW - Steady electric field

UR - https://www.scopus.com/pages/publications/84876057349

M3 - 文章

AN - SCOPUS:84876057349

SN - 1001-2249

VL - 33

SP - 197

EP - 200

JO - Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys

JF - Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys

IS - 3

ER -

Refinement effects of steady electric field on primary α-Al in solidification microstructures of aluminum alloys

Abstract

Keywords

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