Characterization of Friction Modified Processing – A Novel Tool for Enhancing Surface Properties in Cast Aluminium Alloys

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Abstract:

Friction Modified Processing (FMP) is a novel solid state processing technique which can be used for microstructural modification of surface layers in metallic materials. The paper deals with the investigation of the influence of process parameters on the microstructure in the surface layer of a cast aluminum alloy. The FMP was conducted on a constructed welding machine equipped with appropriate devices (LOWSTIR and TermSTIR). The measurements of temperature in the stir zone were compared with a numerical model. Another model was developed to determine the quantitative relationships between mass of modified material and processing speeds over a wide experimental range. An exponential formula has been found to describe the relationship between mass of modified material and rotational speed. The evaluation of the traveling speed affecting the mass of the modified material was successfully approximated by linear functions.

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Key Engineering Materials (Volumes 504-506)

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1231-1236

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February 2012

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[1] B.M. Darras, Experimental and analytical study of friction stir processing, Master Thesis, Univeristy of Kentucky, Lexington 2005.

Google Scholar

[2] Z.Y. Ma, Friction stir processing technology. Metall. Mater. Trans. A, 39a (2008) 642-658.

Google Scholar

[3] R.S. Mishra, Friction stir welding and processing. Mat. Sci. Eng. R: Reports. 50 (2005), 1-78.

Google Scholar

[4] D Lohwasser, Z. Chen, Friction stir welding: From basics to applications, Woodhead publishing, Cambridge, 2009.

Google Scholar

[5] M.St. Węglowski, S. Dymek, Microstructural modification of cast aluminium alloy AlSi9Mg via Friction Modified Processing. Submitted to Archives of Metallurgy and Materials, 57 (2012).

DOI: 10.2478/v10172-011-0155-0

Google Scholar

[6] K. Mroczka, J. Dutkiewicz, A. Pietras, Microstructure of friction stir welded joints of 2017A aluminium alloy sheets. Journal of Microscopy-Oxford, 237 (2010) 521-525.

DOI: 10.1111/j.1365-2818.2009.03319.x

Google Scholar

[7] C. Hamilton, S. Dymek, M. Blicharski, Friction Stir Welding of aluminum 7136-T76511. Archives of Metallurgy and Materials, 53 (2008) 1047-1054.

DOI: 10.1115/imece2007-41154

Google Scholar

[8] H. Schmidt, J. Hattel, J. Wert, An analytical model for the heat generation in friction stir welding. Modelling Simul. Mater. Sci. Eng, 12 (2004) 143-157.

DOI: 10.1088/0965-0393/12/1/013

Google Scholar

[9] C. Hamilton, S. Dymek, A. Sommers, A thermal model of friction stir welding in aluminum alloys. Int. J. Mach. Tool. Manuf, 48 (2008) 1120-1130.

DOI: 10.1016/j.ijmachtools.2008.02.001

Google Scholar

[10] T. Long, A.P. Reynolds, Parametric studies of friction stir welding by commercial fluid dynamics simulation. Sci. Technol. Weld. Join 11 (2006) 200-208.

DOI: 10.1179/174329306x85985

Google Scholar

[11] M.St. Węglowski, A. Pietras, Friction stir processing – analysis of the process. Archives of Metallurgy and Materials, 56 (2011), 779-788.

DOI: 10.2478/v10172-011-0086-9

Google Scholar

[12] S. Cui, Z.W. Chen, J.D. Robson, Interrelationships among speeds, torque and flow volumes during friction stir welding/processing. 8th Int. FSW Symposium, 2010, Timmendorfer Strand, Germany.

Google Scholar

[13] J.W. Pew, T.W. Nelson, C.D. Sorensen, Torque based weld power model for friction stir welding. Sci. Technol. Weld. Join., 12 (2007) 341-347.

DOI: 10.1179/174329307x197601

Google Scholar

[14] M.St. Węglowski, S. Dymek, Relationship between Friction Stir Processing parameters and torque, temperature and the penetration depth of the tool. Submitted to Archives of Civil and Mechanical Engineering (2011).

DOI: 10.1016/j.acme.2013.01.003

Google Scholar

[15] W.J. Arbegast, A flow-partitioned deformation zone model for detected formation during friction stir welding. Scr. Mater, 58 (2008) 372-376.

DOI: 10.1016/j.scriptamat.2007.10.031

Google Scholar

[16] A.Arora, R. Nandan, A.P. Reynolds, T. DebRoy, Torque, power requirement and stir zone geometry in friction stir welding through modelling and experiments. Scr. Mater, 60 (2009) 13–16.

DOI: 10.1016/j.scriptamat.2008.08.015

Google Scholar