Deformation of Metallic Foams with Closed Cell at High Temperatures
The aim of this study is to investigate formability of
Al based closed cell metallic foams at high temperature. The foam
specimens with rectangular section were produced from
AlMg1Si0.6TiH20.8 alloy preform material. Bending and free
bending tests based on gravity effect were applied to foam specimens
at high temperatures. During the tests, the time-angular deformation
relationships with various temperatures were determined.
Deformation types formed in cell walls were investigated by means
of Scanning Electron Microscopy (SEM) and optical microscopy.
Bending deformation about 90° was achieved without any defect at
high temperatures. The importance of a critical temperature and
deformation rate was emphasized in maintaining the deformation.
Significant slip lines on surface of cell walls at tensile zones of
bending specimen were observed. At high strain rates, the microcrack
formation in boundaries of elongated grains was determined.
[1] H. Utsunomiya and R. Matsumoto, “Deformation processes of porous
metals and metallic foams” Procedia Materials Science, 2014, 4, 234 –
238
[2] J. Banhart, ‘‘Manufacture, characterization and application of cellular
metals and metal foams’’, Progress in Materials Science, 2001, 46: 559–
632.
[3] H. Fusheng and Z. Zhengang, “The mechanical behavior of foamed
aluminum” Journal of Materials Science, 1999, 34, 291-299.
[4] M. Yongliang, Y. Guangchun, L. Liang, L. Hongjie and Z. Guoyin,
“Deformation mechanisms of closed-cell aluminum foam in
compression”, Scripta Materialia, 2010, 63, 629–632.
[5] M. Merklein and M. Geiger, “New materials and production
technologies for innovative lightweight constructions”, Journal of
Materials Processing Technology, 2002, (125-126), 532-536.
[6] E. W. Andrews, S. Huang, and L., J. Gibson, “Creep Behavior of a
Closed-Cell Aluminum Foam”, Acta mater., 1999, 47, 2927-2935.
[7] F. Diologent, R. Goodall, and A. Mortensen, “Creep of aluminium–
magnesium open cell foam”, Acta Materialia, 2009, 57, 830–837.
[1] H. Utsunomiya and R. Matsumoto, “Deformation processes of porous
metals and metallic foams” Procedia Materials Science, 2014, 4, 234 –
238
[2] J. Banhart, ‘‘Manufacture, characterization and application of cellular
metals and metal foams’’, Progress in Materials Science, 2001, 46: 559–
632.
[3] H. Fusheng and Z. Zhengang, “The mechanical behavior of foamed
aluminum” Journal of Materials Science, 1999, 34, 291-299.
[4] M. Yongliang, Y. Guangchun, L. Liang, L. Hongjie and Z. Guoyin,
“Deformation mechanisms of closed-cell aluminum foam in
compression”, Scripta Materialia, 2010, 63, 629–632.
[5] M. Merklein and M. Geiger, “New materials and production
technologies for innovative lightweight constructions”, Journal of
Materials Processing Technology, 2002, (125-126), 532-536.
[6] E. W. Andrews, S. Huang, and L., J. Gibson, “Creep Behavior of a
Closed-Cell Aluminum Foam”, Acta mater., 1999, 47, 2927-2935.
[7] F. Diologent, R. Goodall, and A. Mortensen, “Creep of aluminium–
magnesium open cell foam”, Acta Materialia, 2009, 57, 830–837.
@article{"International Journal of Earth, Energy and Environmental Sciences:70094", author = "Emrah Ersoy and Yusuf Özçatalbas", title = "Deformation of Metallic Foams with Closed Cell at High Temperatures", abstract = "The aim of this study is to investigate formability of
Al based closed cell metallic foams at high temperature. The foam
specimens with rectangular section were produced from
AlMg1Si0.6TiH20.8 alloy preform material. Bending and free
bending tests based on gravity effect were applied to foam specimens
at high temperatures. During the tests, the time-angular deformation
relationships with various temperatures were determined.
Deformation types formed in cell walls were investigated by means
of Scanning Electron Microscopy (SEM) and optical microscopy.
Bending deformation about 90° was achieved without any defect at
high temperatures. The importance of a critical temperature and
deformation rate was emphasized in maintaining the deformation.
Significant slip lines on surface of cell walls at tensile zones of
bending specimen were observed. At high strain rates, the microcrack
formation in boundaries of elongated grains was determined.", keywords = "Al alloy, Closed cell, hot deformation, metallic
foam.", volume = "9", number = "7", pages = "781-4", }