Predicting the tortuous three dimensional morphology of microporosity in aluminum alloys

Junsheng Wang; Robert C. Atwood; Ludovic Thuinet; Peter D. Lee

Predicting the tortuous three dimensional morphology of microporosity in aluminum alloys

Junsheng Wang, Robert C. Atwood, Ludovic Thuinet, Peter D. Lee

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

A microscale model is presented to predict the complex interaction of pores and the developing solid microstructure. The 3D simulation results illustrate how the pore growth is influenced by both the grain and dendritic structure, forming highly tortuous and irregular shapes. Methods to quantify the 3D structures are proposed and used to qualitatively compare the predicted size and tortuosity of the porosity to experimental observations using x-ray micro-tomography. The predicted average and extreme sizes closely matched those observed in Al 12Cu wedge castings.

Original language	English
Title of host publication	TMS Annual Meeting\|TMS Annu Meet
Pages	217-224
Number of pages	7
Publication status	Published - 2007
Event	SHAPE CASTING: 2nd International Symposium - Orlando, FL Duration: 1 Jul 2007 → …

Conference

Conference	SHAPE CASTING: 2nd International Symposium
City	Orlando, FL
Period	1/07/07 → …

Keywords

Aluminum alloys
Casting
Microporosity
Simulation
X-ray micro-tomography

Cite this

@inproceedings{ebaf24c282b4427b9267854ce9b90922,

title = "Predicting the tortuous three dimensional morphology of microporosity in aluminum alloys",

abstract = "A microscale model is presented to predict the complex interaction of pores and the developing solid microstructure. The 3D simulation results illustrate how the pore growth is influenced by both the grain and dendritic structure, forming highly tortuous and irregular shapes. Methods to quantify the 3D structures are proposed and used to qualitatively compare the predicted size and tortuosity of the porosity to experimental observations using x-ray micro-tomography. The predicted average and extreme sizes closely matched those observed in Al 12Cu wedge castings.",

keywords = "Aluminum alloys, Casting, Microporosity, Simulation, X-ray micro-tomography",

author = "Junsheng Wang and Atwood, {Robert C.} and Ludovic Thuinet and Lee, {Peter D.}",

year = "2007",

language = "English",

pages = "217--224",

booktitle = "TMS Annual Meeting|TMS Annu Meet",

note = "SHAPE CASTING: 2nd International Symposium ; Conference date: 01-07-2007",

}

TY - GEN

T1 - Predicting the tortuous three dimensional morphology of microporosity in aluminum alloys

AU - Wang, Junsheng

AU - Atwood, Robert C.

AU - Thuinet, Ludovic

AU - Lee, Peter D.

PY - 2007

Y1 - 2007

N2 - A microscale model is presented to predict the complex interaction of pores and the developing solid microstructure. The 3D simulation results illustrate how the pore growth is influenced by both the grain and dendritic structure, forming highly tortuous and irregular shapes. Methods to quantify the 3D structures are proposed and used to qualitatively compare the predicted size and tortuosity of the porosity to experimental observations using x-ray micro-tomography. The predicted average and extreme sizes closely matched those observed in Al 12Cu wedge castings.

AB - A microscale model is presented to predict the complex interaction of pores and the developing solid microstructure. The 3D simulation results illustrate how the pore growth is influenced by both the grain and dendritic structure, forming highly tortuous and irregular shapes. Methods to quantify the 3D structures are proposed and used to qualitatively compare the predicted size and tortuosity of the porosity to experimental observations using x-ray micro-tomography. The predicted average and extreme sizes closely matched those observed in Al 12Cu wedge castings.

KW - Aluminum alloys

KW - Casting

KW - Microporosity

KW - Simulation

KW - X-ray micro-tomography

M3 - Conference contribution

SP - 217

EP - 224

BT - TMS Annual Meeting|TMS Annu Meet

T2 - SHAPE CASTING: 2nd International Symposium

Y2 - 1 July 2007

ER -

Predicting the tortuous three dimensional morphology of microporosity in aluminum alloys

Abstract

Conference

Keywords

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