Morphology and elastic properties of aluminum foams produced by a casting technique

T. G. Nieh; J. H. Kinney; J. Wadsworth; A. J.C. Ladd

doi:10.1016/S1359-6462(98)00090-6

Morphology and elastic properties of aluminum foams produced by a casting technique

T. G. Nieh
, J. H. Kinney
, J. Wadsworth
, A. J.C. Ladd

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

72 Citations (Scopus)

Abstract

AA6101 aluminum foams (composition in weight %: Al-0.6 Mg-0.5 Si) were fabricated by using a directional solidification technique. The 3-D morphology of the foams was examined using synchrotron x-ray tomography and the results revealed relatively uniform, open-celled structures. The mechanical (compression) behavior of the foams was also characterized. The stress-strain curves exhibited a typical three-stage behavior: elastic, nearly-perfect plastic (i.e. with a stress plateau), and densification. The elastic moduli of a 10%-dense foam in the directions that are transverse and parallel to the solidification direction were measured to be 630 and 670 MPa, respectively. Theoretical calculations of the modulus using a FEM method with the element-by-element (EBE) formalism were also carried out. The calculated values of approximately 570 and 635 MPa compared favorably with the experimental data.

Original language	English
Pages (from-to)	1487-1494
Journal	Scripta Materialia
Volume	38
Issue number	10
DOIs	https://doi.org/10.1016/S1359-6462(98)00090-6
Publication status	Published - 14 Apr 1998
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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title = "Morphology and elastic properties of aluminum foams produced by a casting technique",

abstract = "AA6101 aluminum foams (composition in weight \%: Al-0.6 Mg-0.5 Si) were fabricated by using a directional solidification technique. The 3-D morphology of the foams was examined using synchrotron x-ray tomography and the results revealed relatively uniform, open-celled structures. The mechanical (compression) behavior of the foams was also characterized. The stress-strain curves exhibited a typical three-stage behavior: elastic, nearly-perfect plastic (i.e. with a stress plateau), and densification. The elastic moduli of a 10\%-dense foam in the directions that are transverse and parallel to the solidification direction were measured to be 630 and 670 MPa, respectively. Theoretical calculations of the modulus using a FEM method with the element-by-element (EBE) formalism were also carried out. The calculated values of approximately 570 and 635 MPa compared favorably with the experimental data.",

author = "Nieh, \{T. G.\} and Kinney, \{J. H.\} and J. Wadsworth and Ladd, \{A. J.C.\}",

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year = "1998",

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TY - JOUR

T1 - Morphology and elastic properties of aluminum foams produced by a casting technique

AU - Nieh, T. G.

AU - Kinney, J. H.

AU - Wadsworth, J.

AU - Ladd, A. J.C.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 1998/4/14

Y1 - 1998/4/14

N2 - AA6101 aluminum foams (composition in weight %: Al-0.6 Mg-0.5 Si) were fabricated by using a directional solidification technique. The 3-D morphology of the foams was examined using synchrotron x-ray tomography and the results revealed relatively uniform, open-celled structures. The mechanical (compression) behavior of the foams was also characterized. The stress-strain curves exhibited a typical three-stage behavior: elastic, nearly-perfect plastic (i.e. with a stress plateau), and densification. The elastic moduli of a 10%-dense foam in the directions that are transverse and parallel to the solidification direction were measured to be 630 and 670 MPa, respectively. Theoretical calculations of the modulus using a FEM method with the element-by-element (EBE) formalism were also carried out. The calculated values of approximately 570 and 635 MPa compared favorably with the experimental data.

AB - AA6101 aluminum foams (composition in weight %: Al-0.6 Mg-0.5 Si) were fabricated by using a directional solidification technique. The 3-D morphology of the foams was examined using synchrotron x-ray tomography and the results revealed relatively uniform, open-celled structures. The mechanical (compression) behavior of the foams was also characterized. The stress-strain curves exhibited a typical three-stage behavior: elastic, nearly-perfect plastic (i.e. with a stress plateau), and densification. The elastic moduli of a 10%-dense foam in the directions that are transverse and parallel to the solidification direction were measured to be 630 and 670 MPa, respectively. Theoretical calculations of the modulus using a FEM method with the element-by-element (EBE) formalism were also carried out. The calculated values of approximately 570 and 635 MPa compared favorably with the experimental data.

UR - https://www.scopus.com/pages/publications/0032036048

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0032036048&origin=recordpage

U2 - 10.1016/S1359-6462(98)00090-6

DO - 10.1016/S1359-6462(98)00090-6

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 38

SP - 1487

EP - 1494

JO - Scripta Materialia

JF - Scripta Materialia

IS - 10

ER -

Morphology and elastic properties of aluminum foams produced by a casting technique

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