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Tribological Characterization of Ni-Free Duplex Stainless Steel Alloys Using the Taguchi Methodology

Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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Metals 2020, 10(3), 339; https://doi.org/10.3390/met10030339
Received: 26 January 2020 / Revised: 24 February 2020 / Accepted: 28 February 2020 / Published: 3 March 2020
Duplex stainless steels (DSSs) exhibit excellent corrosion resistance and are being used in a variety of industrial applications. Reducing/eliminating the amount of nickel in such alloys will contribute significantly to its economic viability. Moreover, a well-established wear behavior for these alloys is also an essential development in most of their applications. Hence, in this work, the Taguchi technique was effectively implemented to investigate the effect of operating factors such as sliding speed and applied load on the wear behavior of different compositions of nickel-free DSSs. It was observed that the composition had a higher contribution of 33.66% to the wear rate (WR) and the contribution of the sliding speed to the coefficient of friction (COF) was found to be 68.17%. With a good agreement, a regression model was also developed to predict the WR and COF within a certain range of factors. Wear tests have also shown that the developed nickel-free DSS is a promising candidate in terms of wear resistance as compared to austenitic stainless steels (ASS). View Full-Text
Keywords: duplex stainless steel; nickel-free; wear duplex stainless steel; nickel-free; wear
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Daraghma, H.; Samad, M.A.; Toor, I.H.; M. Abdallah, F.; Patel, F. Tribological Characterization of Ni-Free Duplex Stainless Steel Alloys Using the Taguchi Methodology. Metals 2020, 10, 339.

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