Pore behaviour during semi-solid alloy compression: Insights into defect creation under pressure

K. M. Kareh; P. D. Lee; R. C. Atwood; T. Connolley; C. M. Gourlay

doi:10.1016/j.scriptamat.2014.06.033

Pore behaviour during semi-solid alloy compression: Insights into defect creation under pressure

K. M. Kareh, P. D. Lee, R. C. Atwood, T. Connolley, C. M. Gourlay

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

Abstract

The pre-existing porosity behaviour of globular semi-solid Al-Cu alloys during uniaxial compression is quantified during time-resolved synchrotron tomography at ∼64% and ∼93% solid. At ∼64% solid, both tortuous and round pores exist before deformation, respectively persisting and closing during compression, while at ∼93% solid, pre-existing tortuous pores open under compressive axial strain. It is demonstrated that pore behaviour reflects the immediate grain neighbourhood where the semi-solid alloy acts as a granular material, and that pore opening results from shear-induced dilation during uniaxial compression. © 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights.

Original language	English
Pages (from-to)	73-76
Number of pages	3
Journal	Scripta Materialia
Volume	89
DOIs	https://doi.org/10.1016/j.scriptamat.2014.06.033
Publication status	Published - 15 Oct 2014

Keywords

Aluminium-copper alloys
Porosity
Synchrotron radiation
Three-dimensional tomography

Access to Document

10.1016/j.scriptamat.2014.06.033

http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2\\&SrcApp=PARTNER_APP\\&SrcAuth=LinksAMR\\&KeyUT=000340978400019\\&DestLinkType=FullRecord\\&DestApp=ALL_WOS\\&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202

Structural Evolution across multiple time and length scales
Withers, P. (PI), Cartmell, S. (CoI), Cernik, R. (CoI), Derby, B. (CoI), Eichhorn, S. (CoI), Freemont, A. (CoI), Hollis, C. (CoI), Mummery, P. (CoI), Sherratt, M. (CoI), Thompson, G. (CoI) & Watts, D. (CoI)
1/06/11 → 31/05/16
Project: Research

Cite this

@article{04fd6c45b6ca483a8b9e2e1498d693d7,

title = "Pore behaviour during semi-solid alloy compression: Insights into defect creation under pressure",

abstract = "The pre-existing porosity behaviour of globular semi-solid Al-Cu alloys during uniaxial compression is quantified during time-resolved synchrotron tomography at ∼64% and ∼93% solid. At ∼64% solid, both tortuous and round pores exist before deformation, respectively persisting and closing during compression, while at ∼93% solid, pre-existing tortuous pores open under compressive axial strain. It is demonstrated that pore behaviour reflects the immediate grain neighbourhood where the semi-solid alloy acts as a granular material, and that pore opening results from shear-induced dilation during uniaxial compression. {\textcopyright} 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights.",

keywords = "Aluminium-copper alloys, Porosity, Synchrotron radiation, Three-dimensional tomography",

author = "Kareh, {K. M.} and Lee, {P. D.} and Atwood, {R. C.} and T. Connolley and Gourlay, {C. M.}",

year = "2014",

month = oct,

day = "15",

doi = "10.1016/j.scriptamat.2014.06.033",

language = "English",

volume = "89",

pages = "73--76",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

}

TY - JOUR

T1 - Pore behaviour during semi-solid alloy compression: Insights into defect creation under pressure

AU - Kareh, K. M.

AU - Lee, P. D.

AU - Atwood, R. C.

AU - Connolley, T.

AU - Gourlay, C. M.

PY - 2014/10/15

Y1 - 2014/10/15

N2 - The pre-existing porosity behaviour of globular semi-solid Al-Cu alloys during uniaxial compression is quantified during time-resolved synchrotron tomography at ∼64% and ∼93% solid. At ∼64% solid, both tortuous and round pores exist before deformation, respectively persisting and closing during compression, while at ∼93% solid, pre-existing tortuous pores open under compressive axial strain. It is demonstrated that pore behaviour reflects the immediate grain neighbourhood where the semi-solid alloy acts as a granular material, and that pore opening results from shear-induced dilation during uniaxial compression. © 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights.

AB - The pre-existing porosity behaviour of globular semi-solid Al-Cu alloys during uniaxial compression is quantified during time-resolved synchrotron tomography at ∼64% and ∼93% solid. At ∼64% solid, both tortuous and round pores exist before deformation, respectively persisting and closing during compression, while at ∼93% solid, pre-existing tortuous pores open under compressive axial strain. It is demonstrated that pore behaviour reflects the immediate grain neighbourhood where the semi-solid alloy acts as a granular material, and that pore opening results from shear-induced dilation during uniaxial compression. © 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights.

KW - Aluminium-copper alloys

KW - Porosity

KW - Synchrotron radiation

KW - Three-dimensional tomography

U2 - 10.1016/j.scriptamat.2014.06.033

DO - 10.1016/j.scriptamat.2014.06.033

M3 - Article

SN - 1359-6462

VL - 89

SP - 73

EP - 76

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Pore behaviour during semi-solid alloy compression: Insights into defect creation under pressure

Abstract

Keywords

Access to Document

Fingerprint

Projects

Structural Evolution across multiple time and length scales

Cite this