Optimization of cellular structure of aluminum foams produced by powder metallurgy method
作者： Xiang Ding , Yuan Liu , Xiang Chen , Huawei Zhang , Yanxiang Li
DOI: 10.1016/J.MATLET.2017.12.144
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摘要: Abstract This paper describes a new method for optimizing the cellular structure of AlMg4Si8 alloy foams manufactured via powder metallurgy. The was improved by pretreating TiH2 with layer Sn powder, which then remixed an used as raw material preparation precursor. completely encapsulated in molten at early stage foaming when matrix still solid, so that liberated H2 fully captured began to decompose. interpore flow along cracks solid avoided, improving utilization ratio blowing agent. After determining 4.0 wt% cladding capable almost encapsulating 0.5 wt% TiH2, final optimized and regular circular pores were obtained.
sci-hub.se 参考文章(9)
J Lazaro, E Solorzano, JA De Saja, MA Rodríguez-Pérez, None, Early anisotropic expansion of aluminium foam precursors Journal of Materials Science. ,vol. 48, pp. 5036- 5046 ,(2013) , 10.1007/S10853-013-7291-Z
H.-M. Helwig, F. Garcia-Moreno, J. Banhart, A study of Mg and Cu additions on the foaming behaviour of Al–Si alloys Journal of Materials Science. ,vol. 46, pp. 5227- 5236 ,(2011) , 10.1007/S10853-011-5460-5
M. Saadatfar, M. Mukherjee, M. Madadi, G.E. Schröder-Turk, F. Garcia-Moreno, F.M. Schaller, S. Hutzler, A.P. Sheppard, J. Banhart, U. Ramamurty, Structure and deformation correlation of closed-cell aluminium foam subject to uniaxial compression Acta Materialia. ,vol. 60, pp. 3604- 3615 ,(2012) , 10.1016/J.ACTAMAT.2012.02.029
P. M. Proa-Flores, R. A. L. Drew, Production of Aluminum Foams with Ni‐coated TiH2 Powder Advanced Engineering Materials. ,vol. 10, pp. 830- 834 ,(2008) , 10.1002/ADEM.200800135
G.B Schaffer, T.B Sercombe, R.N Lumley, Liquid phase sintering of aluminium alloys Materials Chemistry and Physics. ,vol. 67, pp. 85- 91 ,(2001) , 10.1016/S0254-0584(00)00424-7
Biljana Matijasevic, John Banhart, Improvement of aluminium foam technology by tailoring of blowing agent Scripta Materialia. ,vol. 54, pp. 503- 508 ,(2006) , 10.1016/J.SCRIPTAMAT.2005.10.045
A. Rack, H.-M. Helwig, A. Bütow, A. Rueda, B. Matijašević-Lux, L. Helfen, J. Goebbels, J. Banhart, Early pore formation in aluminium foams studied by synchrotron-based microtomography and 3-D image analysis Acta Materialia. ,vol. 57, pp. 4809- 4821 ,(2009) , 10.1016/J.ACTAMAT.2009.06.045
Hao Lin, Hongjie Luo, Zhigang Zhang, Junfei Ma, Guangchun Yao, Study on improvement of aluminum foams by rapid foaming Materials Letters. ,vol. 188, pp. 288- 290 ,(2017) , 10.1016/J.MATLET.2016.10.109
S. Asavavisithchai, A. R. Kennedy, The Effect of Compaction Method on the Expansion and Stability of Aluminium Foams Advanced Engineering Materials. ,vol. 8, pp. 810- 815 ,(2006) , 10.1002/ADEM.200600067