Abstract
This paper deals with the optimization of the micro-hardness and the tribological properties of the anodized Al 5754 aluminium alloy. A sulphuric anodizing process was considered. Three anodizing bath parameters, namely: the bath temperature, the current density, and the sulphuric acid concentration, were varied using Doehlert experimental design. The selected responses were: the micro-hardness, the wear rate and the growth rate of the anodic oxide layer. The variance analysis was used to check the adequacy of response models. Additional tests were performed to validate the obtained model. In order to maximize the growth rate and the micro-hardness of the anodic oxide layer and to minimize the wear rate at the same time, a multi-criteria optimization using the desirability function was performed. The main finding of this study indicated that under optimal anodizing conditions (T = 11.1°C, J = 2.1 A/dm2, C sul = 198 g/L), the estimated values responses were 0.64 μm/min, 442 HV, and 4.8% for the growth rate, micro-hardness and wear rate, respectively. The best friction behavior and the lowest wear rate of the optimum anodic layer could be correlated with the surface morphology of the anodic oxide layer revealed by the scanning electron microscopy and optical observations during friction and scratch tests.
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References
Wernick, S., Pinner, R., and Sheasby, P.G., The Surface Treatment of Aluminum and its Alloys, Materials Park, OH: ASM Int., 1987, 5th ed.
Baumeister, J., Banhart, J., and Weber, M., Mater Des., 1997, vol. 18, pp. 217–220.
Mezlini, S., Elleuch, K., and Kapsa, P., Surf. Coat. Technol., 2006, vol. 200, pp. 2852–2856.
Maejima, M., Saruwataria, U.K., and Takaya, M., Surf. Coat. Technol., 2000, vol. 132, pp. 105–110.
Takaya, M., Hashimoto, K., Toda, Y., and Maejima, M., Surf. Coat. Technol., 2003, vol. 169, pp. 160–162.
**a, Z., Riester, L., Sheldon, B.W., and Curtin, W.A., Rev. Adv. Mater. Sci., 2004, vol. 6, pp. 131–139.
Skeldon, P., Wang, H.W., and Thompson, G.E., Wear, 1997, vol. 206, pp. 187–196.
Aerts, T., Dimogerontakis, T.H., de Graeve, I., and Fransaer, J., Surf. Coat. Technol., 2007, vol. 201, pp. 7310–7317.
Fratila-Apachitei, L.E., Duszczyk, J., and Katgerman, L., Surf. Coat. Technol., 2003, vol. 165, pp. 309–315.
Brace, A.W., The Technology of Anodized Aluminum, Teddington: Robert Droper, 1968, pp. 1–11.
Apachitei, L.E.F., Tichelaar, F.D., Thompson, G.E., and Terryn, H., Surf. Coat. Technol., 2004, vol. 49, pp. 3169–3177.
O’Sullivan, J.P. and Wood, G.C., Proc. R. Soc. London, 1970, vol. 317, no. 1531, pp. 511–543.
Montgomrey, D.C., Design and Analysis of Experiments, New York: Wiley, 1991, 3rd ed.
Goupy, J., Plans d’Expériences pour Surfaces de Réponses, Paris: Dunod, 1999.
Khuri, A.I. and Cornell, J.A., Response Surfaces: Design and Analyses, New York: Marcel Dekker, 1996.
Doehlert, D.H., Appl. Stat., 1970, vol. 19, pp. 231–239.
Marcos, A.B., Ricardo, E.S., Eliane, P.O., Leonardo, S.V., et al., Talanta, 2008, vol. 76, pp. 965–977.
Derringer, G. and Suich, R., J. Qual. Technol., 1980, vol. 12, no. 4, pp. 214–219.
Harrington, E.C., Jr., Ind. Qual. Control, 1965, vol. 21, pp. 494–498.
Escobar, J., Arurault, L., and Turq, V., Appl. Surf. Sci., 2012, vol. 258, pp. 8199–8208.
Fratila-Apachitei, L.E., Duszczyk, J., and Katgerman, L., Surf. Coat. Technol., 2003, vol. 165, pp. 309–315.
Bensalah, W., Elleuch, K., Feki, M., Wery, M., et al., Surf. Coat. Technol., 2007, vol. 201, pp. 7855–7864.
Chalumeau, L., Wery, M., Ayedi, H.F., Chabouni, M.M., et al., Surf. Coat. Technol., 2000, vol. 132, pp. 105–110.
Mathieu, D., Noney, J., and Phan-Tan-Luu, R., NEM-RODW Software, Marseille: LPRAI, 2002.
Fisher, R.A. and Yates, F., Statistical Tables for Biological and Agricultural, and Medical Research, Edinburgh: Olivier Boyd, 1948.
Vojkuvka, L., Santos, A., Pallarès, J., Ferré-Borrull, J., and Celis, J.P., Surf. Coat. Technol., 2012, vol. 206, pp. 2115–2124.
Elwasli, F., Zemzemi, F., Mkaddem, A., Mzali, S., et al., Mater. Des., 2015, vol. 87, pp. 352–362.
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Bargui, M., Elleuch, K., Wery, M. et al. Optimization of mechanical and tribological properties of anodized 5754 aluminium alloy. Surf. Engin. Appl.Electrochem. 53, 371–382 (2017). https://doi.org/10.3103/S1068375517040020
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DOI: https://doi.org/10.3103/S1068375517040020