Influence on the Microstructure of Powder Metallurgical Metal Foam by Means of Mechanical Alloying

Abstract:

Due to the process, metal foams produced by powder metallurgy have an inhomogeneous pore structure. The pore size variations from a few tenths of a millimeter up to the centimeter range is so typical. This leads to inconstant properties and makes the predictability of metal foam based components difficult. The present work deals with the approach to precondition the feedstock powder for the production of metal foams by mechanical alloying. Thereby, the homogeneous distribution of the blowing agent TiH₂ is already present in the so-called composite powder. In addition, there is the possibility to add reinforcement particles with regard to a further improvement of the mechanical properties. Overall, this leads to a rather wide range of possible influencing factors and parameters to be varied. Accordingly, the present work is only a preview of a broad experimental program, taking into account the design of experiments and is currently being processed. In this first study, an alloy AA6060 has been used as the matrix material. The evaluated method provides a finer pore structure associated with a modified foaming behavior.

• Periodical: Key Engineering Materials (Volume 809)
• Pages: 320-325
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.809.320
• Online since: June 2019
• Authors: Steve Siebeck*, Maik Trautmann, Jörg Hohlfeld, Thomas Hipke, Guntram Wagner
• Keywords: Aluminium Foam, High-Energy Ball Milling, Mechanical Alloying

References

[1] J. Banhart, Manufacture, characterisation and application of cellular metals and metal foams, Prog. Mater. Sci. 46 (2001) 559–632.

DOI: 10.1016/s0079-6425(00)00002-5

[2] T. Hipke, G. Lange, R. Poss, Taschenbuch für Aluminiumschäume, Aluminium-Verlag, (2007).

[3] D. Nestler, H. Jung, M. Trautmann, B. Wielage, G. Wagner, W.G. Drossel, C. Drebenstedt, T. Hipke, New Sandwich Structures Consisting of Aluminium Foam and Thermoplastic Hybrid Laminate Top Layers, MSF 825-826 (2015) 797–805.

DOI: 10.4028/www.scientific.net/msf.825-826.797

[4] A.A. Aksenov, Y.N. Mansurov, D.O. Ivanov, V.P. Reva, D.S. Kadyrova, R.K. Shuvatkin, E.D. Kim, Mechanical Alloying of Secondary Raw Material for Foam Aluminum Production, Metallurgist 61 (2017) 475–484.

DOI: 10.1007/s11015-017-0520-y

[5] M. Haesche, J. Weise, F. Garcia-Moreno, J. Banhart, Influence of particle additions on the foaming behaviour of AlSi11/TiH2 composites made by semi-solid processing, Materials Science and Engineering: A 480 (2008) 283–288.

DOI: 10.1016/j.msea.2007.07.040

[6] X. Ding, Y. Liu, X. Chen, H. Zhang, Y. Li, Optimization of cellular structure of aluminum foams produced by powder metallurgy method, Materials Letters 216 (2018) 38–41.

DOI: 10.1016/j.matlet.2017.12.144

[7] Y. Cheng, Y. Li, X. Chen, T. SHI, Z. Liu, N. Wang, Fabrication of Aluminum Foams with Small Pore Size by Melt Foaming Method, Metallurgical and Materials Transactions B 48 (2017) 754–762.

DOI: 10.1007/s11663-016-0815-6

[8] B.K. VanLeeuwen, K.A. Darling, C.C. Koch, R.O. Scattergood, Novel technique for the synthesis of ultra-fine porosity metal foam via the inclusion of condensed argon through cryogenic mechanical alloying, Materials Science and Engineering: A 528 (2011) 2192–2195.

DOI: 10.1016/j.msea.2010.11.057

[9] J. Hohlfeld, T. Hipke, F. Schuller, Sandwich manufacturing with foam core and aluminum face sheets - A new process without rolling, (2018).

DOI: 10.4028/www.scientific.net/msf.933.3

[10] S. Rybandt, C. Lies, J. Hohlfeld, T. Hipke, Aluminiumschaum—Ein Werkstoff für das Bauwesen? Teil II: Anwendungsmöglichkeiten für Aluminiumschaum sowie deren Verbunde, Bauingenieur 86 (2011) 425.

[11] T. Hipke, Materials progress: Metal-foam-filled steel tube reduces weight in structures, Advanced Materials and Processes 163 (2005) 15–16.

[12] P.M. Proa-Flores, G. Mendoza-Suarez, R.A.L. Drew, Effect of TiH2 particle size distribution on aluminum foaming using the powder metallurgy method, Journal of Materials Science 47 (2012) 455–464.

DOI: 10.1007/s10853-011-5820-1

[13] D. Nestler, S. Siebeck, H. Podlesak, B. Wielage, S. Wagner, M. Hockauf, Influence of process control agent (PCA) and atmosphere during high-energy ball milling for the production of particle-reinforced aluminium matrix composites, Mat.-wiss. u. Werkstofftech 42 (2011) 580–584.

DOI: 10.1007/978-3-642-17384-4_9

[14] S. Siebeck, D. Nestler, H. Podlesak, B. Wielage, Influence of Milling Atmosphere on the High-Energy Ball-Milling Process of Producing Particle-Reinforced Aluminum Matrix Composites, in: M. Fathi (Ed.), Integration of Practice-Oriented Knowledge Technology: Trends and Prospectives, Springer, Berlin Heidelberg, 2013, p.315–321.

DOI: 10.1007/978-3-642-34471-8_25

[15] D. Legland, I. Arganda-Carreras, P. Andrey, MorphoLibJ: integrated library and plugins for mathematical morphology with ImageJ, Bioinformatics (Oxford, England) 32 (2016) 3532–3534.

DOI: 10.1093/bioinformatics/btw413

[16] B. Wielage, D. Nestler, S. Siebeck, H. Podlesak, Fabrication of silicon carbide reinforced aluminium powders by high-energy ball-milling, Materialwiss. Werkstofftech. 41 (2010) 476–481.

DOI: 10.1002/mawe.201000629

[17] V. Bhosle, E.G. Baburaj, M. Miranova, K. Salama, Dehydrogenation of TiH2, Materials Science and Engineering: A 356 (2003) 190–199.

DOI: 10.1016/s0921-5093(03)00117-5