Surface modification of tool steel by cathodic cage TiN deposition

Abstract

The aim of this work is to investigate the effect of titanium nitride coating for various treatment times (0.5-4 h) by cathodic cage plasma deposition (CCPD) on surface properties of AISI D6 tool steel. The obtained results depict micrometric-sized TiN film deposition under all processing condition with improved surface hardness and corrosion resistance. Raman and EDS analysis are used to calculate N/Ti ratios for stoichiometric calculations of samples. This study depicts that the surface properties of tool steel can be effectively improved by TiN film deposition using CCPD, with low processing time, low processing temperature and better uniformity, as compared to conventional techniques. Additionally, the problems associated with the conventional TiN films such as pores and voids are eliminated. This technique is compatible with industrial-scale applications, and thus results from this study are expected to be beneficial for the surface engineering industry.

Surface modification of M2 steel by combination of cathodic cage plasma deposition and magnetron sputtered MoS2-TiN multilayer coatings

“…Plasma nitriding was performed in the nitriding reactor with cathodic cage adaptation as shown in Fig. 1, and details given previous report [23]. In the multilayer film deposition stage, a magnetron sputtering system was used as shown in Fig.…”

“…Unfortunately, the titanium nitride coatings by PVD exhibit certain drawbacks: due to lowdeposition efficiency, thick layer development (for wear resistance, formation of sufficiently thick layer is essential) requires long processing time and thus increased total processing cost [22]. Usually due to difference in crystal structure of TiN with substrate, PVD-TiN coatings exhibit poor adhesion [23]. In this study, we aimed to use additional treatment of plasma nitriding prior to the deposition of lubrication and hard coatings by magnetron sputtering.…”

“…The low processing cost and high deposition efficiency of CCPD further motivate to use cathodic cage plasma TiN deposition. In a previous report, we successfully synthesized individual titanium nitride coating by cathodic cage plasma deposition technique on tool steel by using titanium cathodic cage [23].…”

Synthesis of TiN and TiO2 thin films by cathodic cage plasma deposition: a brief review

“…The process transforms the phase composition at the surface of samples. Several parameters are responsible for the effectiveness of this nitriding technique, including gas composition, pressure, current density, cathodic configuration, and temperature, as well as the geometry and composition of the sample [43][44][45][46][47][48]. Using gases like nitrogen, hydrogen, and argon, plasma nitriding is considered environmentally friendly; there is no risk of fire in the process due to the absence of oxygen in the chamber; the process is automated, which has low operator involvement; low maintenance and very low operation cost.…”

“…The sputtering effect is more beneficial due to the prevention from the preferential deposition effect as well as from the existence of voids among coated film and sample. Recently, we processed the AISI-D6 tool steel by cathodic cage plasma deposition using a double-layer titanium cathodic cage, and found a significant improvement in corrosion resistance and hardness [43].…”