ENG  Vol.3 No.7 , July 2011
Investigation and Optimization of Sn/Gr Lubricants Effects on Cold Extrudability of Fe-TiC Nanocomposite Using Taguchi Robust Design Method
Abstract: The present study deals with the effects of both tin (Sn) and graphite (Gr) powders on the cold extrudability of Fe-TiC nanocomposites as lubricant. The production process includes low-energy ball milling, powder metallurgy and cold direct Extrusion. Due to various factors influencing the extrudability of the Fe-TiC nanocomposites, such as milling time, rate of extrusion, type and content of lubricant and etc, Taguchi robust design method of system optimization was used to determine the approximate contribution percent (% ρ) of each factor. In order to investigation of Fe-TiC properties, samples with best quality of extrusion were analyzed by XRD and SEM investigations. The results indicate that, sitting the atomic layers of Sn lubricant between Fe and TiC particles leads to decreasing the friction. In this case sliding the particles on each other is easier and a part of the load is applied on lubricant. The results of extrusion of samples indicate that using 2% Sn admixed and die wall graphite lubrication can improve cold extrudability of Fe-TiC nanocomposites.
Cite this paper: nullS. Sajjadi, S. Zebarjad, N. Sasani, H. Khadivi and B. Naderi, "Investigation and Optimization of Sn/Gr Lubricants Effects on Cold Extrudability of Fe-TiC Nanocomposite Using Taguchi Robust Design Method," Engineering, Vol. 3 No. 7, 2011, pp. 700-707. doi: 10.4236/eng.2011.37083.

[1]   K. Das, T. K. Bandyopadhyay and S. Das, “A Review on the Various Synthesis Route of Tic Reinforced Ferrous Based Composites,” Journal of Materials Science, Vol. 37, No. 18, 2002, pp. 3881-3892. doi:10.1023/A:1019699205003

[2]   K. Feng, Y. Yang, B. Shen and L. Guo, “In Situ Synthesis of Tic/Fe Composites by Reaction Casting,” Materials and Design, Vol. 26, No. 1, 2005, pp. 37-40. doi:10.1016/j.matdes.2004.03.014

[3]   V. K. Rai, R. Srivastava, S. K. Nath and S. Ray, “Wear in Cast Titanium Carbide Reinforced Ferrous Composites under Dry Sliding,” Wear, Vol. 231, No. 2, 1999, pp. 265-271. doi:10.1016/S0043-1648(99)00127-1

[4]   I. W. M. Brown and W. R. Owers, “Fabrication, Microstructure and Properties of Fe–Tic Ceramicmetal Composites,” Current Applied Physics, Vol. 4, No. 2-4, 2004, pp. 171-174. doi:10.1016/j.cap.2003.11.001

[5]   W. Theisen and M. Karlsohn, “Hot Direct Extrusion—A Novel Method to Produce Abrasion-Resistant Metal-Matrix Composites,” Wear, Vol. 263, No. 7-12, 2007, pp. 896-904.

[6]   P. Zwigl and D. C. Dunand, “Transformation Superplasticity of Iron and Fe/TiC Metal Matrix Composites,” Metallurgical and Materials Transactions A, Vol. 29, No. 2, 2007, pp. 565-575. doi:10.1007/s11661-998-0138-6

[7]   A. Simchi, “Effects of Lubrication Procedure on the Consolidation, Sintering and Microstructural Features of Powder Compacts,” Materials & Design, Vol. 24, No. 8, 2003, pp. 585-594. doi:10.1016/S0261-3069(03)00155-9

[8]   A. R. Lansdown, “Lubrication: A Practical Guide to Lubricant Selection,” Material Engineering Practice Series, Pergamon, 1982, pp. 126-154.

[9]   P. J. Blau, “Friction Science and Technology,” Oak Ridge National Laboratory, Oak Ridge, 2008, p. 126. doi:10.1201/9781420054101

[10]   G. E. Dieter, H. A. Kuhn and S. L. Semiatin, “Handbook of Workability and Process Design,” American Society for Metals, Materials Park, 2003, pp. 27-29, pp. 54-60, pp. 291-321.

[11]   R. Roy, “A Primer on the Taguchi Method,” Van Nostrand Reinhold, New York, 1990.

[12]   T. Mori, “The New Experimental Design, Taguchi’s Approach to Quality Engineering,” 1st Editon, ASI Press, Dearborn, 1990.

[13]   A. Bendell, J. Disney and W. A. Pridmore, “Taguchi Methods: Applications in World Industry,” IFS Publications, Kempston, 1989.

[14]   K. D. Kim, D. W. Choi, Y. H. Choa and H. T. Kim, “Optimization of Parameters for the Synthesis of Zinc Oxide Nanoparticles by Taguchi Robust Design Method,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 311, No. 1-3, 2007, pp. 170-173. doi:10.1016/j.colsurfa.2007.06.017

[15]   C. C. Koch, “Mechanical Milling and Alloying,” Material Science and Technologhy, Vol. 15, 2001, pp. 193- 245.