J Mater Sci Technol ›› 2010, Vol. 26 ›› Issue (3): 251-257.

• Regular Papers • Previous Articles     Next Articles

Effect of Different Surface Treatment Methods on the Friction and Wear Behavior of AISI 4140 Steel

Mustafa Ulutan, Osman N. Celik, Hakan Gasan, Umit Er   

  1. 1) University of Eskisehir Osmangazi, Faculty of Engineering, Department of Mechanical Engineering, Eskisehir, Turkey
    2) University of Eskisehir Osmangazi, Institute of Metallurgy, Eskisehir, Turkey
  • Received:2009-01-19 Revised:2009-08-18 Online:2010-03-28 Published:2010-03-22
  • Contact: Mustafa Ulutan
  • Supported by:

    the Eskisehir Osmangazi University Research Council (No. 200315015)

Abstract:

In this study, the effects of various surface treatments on the friction and wear behavior of AISI 4140 steel have been evaluated. Sample surfaces of AISI 4140 steel were treated by quenching, carburizing, boronizing and plasma transferred arc (PTA) modification. The microstructural characteristics of surface treated steel samples were examined by optical microscopy and scanning electron microscopy (SEM). The mechanical properties of the samples including the surface roughness, microhardness, and abrasive and adhesive wear characteristics were also evaluated. Wear tests were applied by using a block-on-disc configuration under dry  sliding conditions. The wear behavior and friction characteristics of the samples were determined as a function of sliding distance. Each sample group was compared with the other sample groups, and it was observed that
the carburized samples demonstrated the lowest weight losses; however, PTA-treated samples demonstrated the lowest coefficient of friction in comparison to the other sample groups at the same sliding distance.

Key words: AISI 4140 steel, Quenching, Boronizing, Plasma transferred arc (PTA), Carburizing, Sliding wear