Frictional and wear performance of hard coatings during machining of superduplex stainless steel

Investigation of Coated Cutting Tool Performance during Machining of Super Duplex Stainless Steels through 3D Wear Evaluations

“…Coatings 2017, 7,127 improves the chip compression ratio (Table 3). These phenomena serve to enhance the adaptability of the coatings, which thus results in a better tool life (Figure 2Error!…”

“…Coatings 2017, 7,127 A 200-μm beam was used for all data collected on the samples. A pass energy of 280 eV was used to obtain all survey spectra, while a pass energy of 69 eV was used to collect all high resolution data.…”

“…The instrument was calibrated using a freshly cleaned Ag reference foil, where the Ag 3d 5/2 peak was set to 368 eV. All data analysis was performed using PHI Multipak version 9.4.0.7 software [7]. X-ray stress analysis was performed using X-ray diffraction on new coated tools to measure residual stresses on the surface of the tool, see Table 2.…”

“…Coatings 2017, 7,127 self-organize. In this way, the tribo-film formation can enhance the process of cutting, which provides benefits such as reducing the friction conditions in the cutting zone, which leads to smoother chip undersurface (Figure 3d), reduction in BUE formation and increase in tool life (Figure 2) [11].…”

“…Another point found during machining of these alloys is the work hardening tendency. The work hardening of SDSS increases the friction forces during contact between the work piece and cutting tool edge, which increases the temperature, causing oxidation [7]. In addition, the high ductility of the stainless steel leads to the formation of long continuous chips and the intensive sticking of the workpiece material to the cutting tool surface, which results in an adhesive wear enhancement [8].…”