An Attempt to Apply Darcy′s Flow Law in MMC Recycling Process Analysis

Abstract:

To determine the possibility of carrying out the recycling process of metal-matrix composite castings with saturated reinforcement, only Dupre equation was used until now. Basing on this equation, one can determine superficial conditions in the system: liquid metal (matrix) solid reinforcement medium, favouring the process of autogenous outflow of liquid matrix from the porous reinforcement. It is however very difficult to determine the influence of the structure parameters of reinforcement preforms on examined process. Hence the need to preform analysis of process of liquid metal matrix outflow using Darcys law of flow. Application of this law allows replacing difficult to determine parameters of capillaries occurring in performs with one, quite simple to calculate parameter of permeability. It also makes possible defining the influence of temperature and time of recycling process on yield of matrix metal. To verify stated theses, study of permeability of selected reinforcement preforms and recycling of selected metal-matrix composites with saturated reinforcement was conducted. Furthermore, analysis of liquid metal matrix outflow process from studied preforms was performed, in aspect of application of Darcys law.

• Periodical: Defect and Diffusion Forum (Volumes 326-328)
• Pages: 488-493
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.326-328.488
• Online since: April 2012
• Authors: Dorota Nagolska, Katarzyna Gawdzińska
• Keywords: Metal-Matrix Composites with Saturated Reinforcement, Recycling, Structure of Reinforcement Preforms

References

[1] W. Kucharczyk, A. Mazurkiewicz and W. Żurowski: Modern construction materials (Publishing House of Technical University of Radom, Radom, 2008).

[2] L. A. Dobrzański: Engineering Materials and materials design (Fundamentals of materials science and physical metallurgy, WNT, Warsaw, 2006).

[3] J. Sobczak: Metal composites (Foundry Institute-Motor, Transport Institute Publishers, Cracow, Warsaw, 2001).

[4] M.F. Ashby and D.R.H. Jones: Engineering materials. An Introduction to Micro Structures Processing and Design (WNT, Warsaw, 1996).

[5] A. Mortensen: Metal Matrix Composites in Industry (An Overview Laboratoire de Metallurgie Mecanique Departement des Materiaux, Ecole Polytechnique Federale de Lausanne).

[6] M. F. Ashby: Material Selection in Mechanical Design (WNT, Warsaw, 1998).

[7] J. Grabian: The saturation of reinforcement with ceramic disordered fibres during the production of cast of metal composites (Studia 35, Maritime Univ. Szczecin, Szczecin, 2001).

[8] V. Michaud and A. Mortensen: Composites Vol. 32 (2001), p.981.

[9] J. Jackowski: Arch. Foundry Eng. Vol 9, issue 4 (2009), pp.77-80.

[10] J. Jackowski, D. Nagolska, M. Szweycer, P. Szymański, K. Gawdzińska and J. Grabian: Recykling metalowych odlewów kompozytowych (Polska metalurgia w latach 2002-2006, Metallurgy Committee of Polish Academy of Science, Cracow, 2006).

[11] J. Jackowski: Arch. Mech. Techn. Automation Vol. 29 (2009), p.29.

[12] P.M. Schuster, D. Skibo, R.S. Bruski, R. Provencher and G. Riverin: JOM, Vol. 5 (1993), p.26.

DOI: 10.1007/bf03223214

[13] H. Darcy: Les fontaines publiques de la ville de Dijon (Dalmont, Paris, 1856).

[14] E. Myślińska: Laboratory methods of soil investigations: (Warsaw, Wydawnictwo uniwersytetu warszawskiego, Warsaw, 2006).

[15] Z. Pazdro and B. Kozerski: General hydrogeology (Warsaw, Wydawnictwa Geologiczne, 1990).