The dry sliding wear behavior of heat-treated super duplex stainless steel AISI 2507 was examined by taking pin-on-disc type of wear-test rig. Independent parameters, namely applied load, sliding distance, and sliding speed, influence mainly the wear rate of super duplex stainless steel. The said material was heat treated to a temperature of 850°C for 1 hour followed by water quenching. The heat treatment was carried out to precipitate the secondary sigma phase formation. Experiments were conducted to study the influence of independent parameters set at three factor levels using the L27 orthogonal array of the Taguchi experimental design on the wear rate. Statistical significance of both individual and combined factor effects was determined for specific wear rate. Surface plots were drawn to explain the behavior of independent variables on the measured wear rate. Statistically, the models were validated using the analysis of variance test. Multiple non-linear regression equations were derived for wear rate expressed as non-linear functions of independent variables. Further, the prediction accuracy of the developed regression equation was tested with the actual experiments. The independent parameters responsible for the desired minimum wear rate were determined by using the desirability function approach. The worn-out surface characteristics obtained for the minimum wear rate was examined using the scanning electron microscope. The desired smooth surface was obtained for the determined optimal condition by desirability function approach.
 Femenia, M., Pan, J., Leygraf, C. & Luukkonen, P. (2001). In situ of selective dissolution of duplex stainless steel 2205 by electrochemical scanning tunnelling microscopy. Corrosion Science. 43, 1939-1951.
 Brodziak-Hyska, A., Stradomski, Z. & Kolan, C. (2014). Kinetics of the σ phase precipitation in respect of erosion-corrosion wear of duplex cast steel. Archives of Foundry Engineering. 14(1), 17-20.
 Antony, P.J., Singh Raman, R.K., Mohanram, R., Kumar, P. & Raman, R. (2008). Influence of thermal aging on sulfate-reducing bacteria (SRB)-influenced corrosion behavior of 2205 duplex stainless steel. Corrosion Science. 50, 1858-1864.
 Eriksson, H. & Bernhardsson, S. (1991). The applicability of duplex stainless steels in sour environments. Corrosion Science. 47, 719-725.
 Oredsson, J. & Bernhardsson, S. (1983). Performance of high alloy austenitic and duplex stainless steels in sour gas and oil environments. Material Performance. 22, 35-42.
 Heitkemper, M., Fischer, A., Bohne, C. & Pyzalla, A. (2001). Wear mechanisms of laser-hardened martensitic high-nitrogen-steels under sliding wear. Wear. 250(1), 477-484.
 Totik, Y., Sadeler, R., Altun, H. & Gavgali, M. (2003). The effects of induction hardening on wear properties of AISI 4140 steel in dry sliding conditions. Materials and Design. 24, 25-30.
 Boromei, I., Ceschini, L., Marconi, A. & Martini, C. (2003). A duplex treatment to improve the sliding behavior of AISI 316L: Low-temperature carburizing with a DLC (aC: H) topcoat. Wear. 302(1), 899-908.
 Williams, J.A. (1999). Wear modelling: analytical, computational and mapping: a continuum mechanics approach. Wear. 225, 1-17.
 Nilsson, J.O. & Wilson, A. (1993). Influence of isothermal phase transformation on toughness and pitting corrosion of super duplex stainless steel SAF 2507. Material Science Technology. 9, 545-554.
 Nilsson, J.O. (1992). Super duplex stainless steel. Material Science Technology. 8, 685-700.
 Chen, T.H. & Yang, J.R. (2001). Effects of solution treatment and continuous cooling onr-phase precipitation in a 2205 duplex stainless steel. Material Science Engineering A, 311, 28-41.
 Chen, T.H., Weng, K.L. & Yang, J.R. (2002). The effect of high-temperature exposure on the microstructural stability and toughness property in a 2205 duplex stainless steel. Material Science Engineering A. 338, 259-270.
 Stradomski, Z., Brodziak-Hyska, A. & Kolan, C. (2012). Optimization of sigma phase precipitates with respect to the functional properties of duplex cast steel. Archives of Foundry Engineering. 12(2), 75-78.
 Stradomski, Z. & Dyja, D. (2007). Characterization of solidification and solid state transformation in duplex cast steel: Thermo-Calc investigation. Archives of Foundry Engineering. 7(3), 269-272.
 Duprez, L., Cooman, B.D. & Akdut, N. (2000). Microstructure evolution during isothermal annealing of a standard duplex stainless steel type 1.4462. Steel research. 71, 417-422.
 Lasebikan, B.A., Akisanya, A.R. & Deans, W.F. (2013). The Mechanical Behavior of a 25Cr Super duplex stainless steel at elevated temperature. Journal of Materials Engineering and Performance. 22(2), 598-606.
 Pohl, M., Storz, O. & Glogowski, T. (2007). Effect of intermetallic precipitations on the properties of duplex stainless steel. Materials Characterization. 58, 65-71.
 Akisanya, A.R., Obi, U. & Renton, N.C. (2012). Effect of ageing on phase evolution and mechanical properties of a high tungsten super-duplex stainless steel. Material Science Engineering A. 535, 281-289.
 Badji, R., Bouabdallah, M., Bacroix, B., Kahloun, C., Belkessa, B. & Maza, H. (2008). Phase transformation and mechanical behavior in annealed 2205 duplex stainless steel welds. Materials Characterization. 59, 447-453.
 Do Nascimento, M., Ocelík, V., Ierardi, M.C.F. & De Hosson, J.T.M. (2008). Wear resistance of WCp/Duplex Stainless Steel metal matrix composite layers prepared by laser melt injection. Surface Coatings Technology. 202, 4758-4765.
 Martins, M. & Castelleti, L.C. (2005). Effect of heat treatment on the mechanical properties of ASTM A890 Gr6A super duplex stainless steel. Journal of ASTM International. 2, 1-14.
 Fargas, G., Mestra, M., Anglada, M. (2009). Effect of thermal treatments on the wear behaviour of duplex stainless steels. IOP Conf. Series. Material Science and Engineering A, 5(5).
 Roy, K.R. (1990). A Primer on the Taguchi Method. New York: Van Nostrand Reinhold.
 Ross, P.J. (1993). Taguchi Technique for Quality Engineering. New York: McGraw-Hill.
 Basavarajappa, S., Chandramohan, G. & Paulo Davim, J. (2007). Application of Taguchi techniques to study dry sliding wear behaviour of metal matrix composites. Material Design. 28, 1393-1398.
 Mahapatra, Patnaik. (2009). A Study on mechanical and erosion wear behaviour of hybrid composites using Taguchi experimental design. Material & Design. 30, 791-801.
 Sahoo, P. (2009). Wear behaviour of electroless Ni–P coatings and optimization of process parameters using Taguchi method, Material Design. 30, 1341-1349.
 Sahin, Y. (2003). Wear behaviour of aluminium alloy and its composites reinforced by SiC particles using statistical analysis. Materials & Design. 24(2), 95-103.
 Basavarajappa, S. & Chandramohan, G. (2005). Wear Studies on Metal Matrix Composites: a Taguchi Approach. Journal of Material Science and Technology. 21(6), 845-850.
 Kumar, R. & Dhiman, S. (2013). A study of sliding wear behaviors of Al-7075 alloy and Al-7075 hybrid composite by response surface methodology analysis. Materials & Design. 50, 351-359.