Thermal Spray Manufacturing of Semi-Finished Parts for Thixoforming of Fiber and Particle Reinforced Metal Matrix Composites

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Abstract:

Processing of light-metals in semi-solid state offers some advantages regarding process temperatures, handling of the material, but also the resulting micro-structure of the final component. Reinforcement of light-metal components with fibers or particles can be applied in order to increase elastic modulus and yield strength of the material as well as its wear resistance. But, the manufacturing of metal matrix composites by thixoforging requires the supply of raw material that shows thixotropic behavior at processing temperature and that contains a definite volume fraction of well distributed reinforcement phase. In this work, an arc wire spray process is applied for the manufacturing of semi-finished parts by coating of long-fiber fabrics and by deposition of ceramic particle containing billets. The process technique is described and the suitability of thermally sprayed matrix material for semi-solid processing is verified.

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Periodical:

Solid State Phenomena (Volumes 116-117)

Pages:

375-378

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Online since:

October 2006

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[1] B. Harris: Engineering Composite Materials, 2nd ed. (University Press, Cambridge, UK 1999).

Google Scholar

[2] N. Chawla and K.K. Chawla: Metal Matrix Composites (Springer, New York, USA 2006).

Google Scholar

[3] H.V. Atkinson: Prog. Mater. Sci. Vol. 50 (2005), pp.341-412.

Google Scholar

[4] A. Leatham, A. Ogilvy, P. Chesney and J.V. Wood: Met. Mater. Vol. 5, No. 3(1989), pp.140-143.

Google Scholar

[5] L. Pawlowski: The science and engineering of thermal spray coatings (John Wiley and Sons, Chichester 1995).

Google Scholar

[6] R. Gadow and K. von Niessen: Ceram. Eng. Sci. Proc. Vol. 26, No. 3 (2005), pp.299-307.

Google Scholar

[7] H. -D. Steffens, J. Wilden, K. Nassenstein and U. Erning; in: Verbundwerkstoffe und Werkstoffverbunde, ed. G. Ziegler (DGM Informationsges., Oberursel, Germany 1996), p.61.

Google Scholar

[8] R. Gadow, K. von Niessen and P. Unseld; in: Proc. Int. Conf. Advanced Metallic Materials (Slovak Academy of Sciences, Bratislava 2003), pp.101-105.

Google Scholar

[9] K. Siegert, R. Gadow, K. V. Niessen, P. Unseld and M. Speicher; in: Proc. 8th Int. Conf. on Semi-Solid Processing of Alloys and Composites, S2P 2004, Paper # 23-3 (NADCA, Wheeling/Illinois, USA 2004).

Google Scholar

[10] R. Gadow, G. Messmer, K. von Niessen, K. Siegert, M. Speicher and P. Unseld: Method and device for producing a reinforced component by thixoforming (US Patent Appl. No. 11/186, 006, filing date 20. 07. 2005).

Google Scholar