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The sputtered CrN coatings, which were bombarded by the energetic Cr-ion via filtered arc ion plating layer by layer, were prepared to improve the corrosion resistance of the coated samples. By controlling the times of Cr ion bombardment, the influence of the Cr ion bombarding of the sputtered CrN were investigated from the aspect of the microstructure and corrosion behavior. The results indicated that the CrN film showed a suppressed effect on the coarse columnar structure and a more compact structure with lower porosity by introducing the Cr-ion bombardment. Potentiodynamic polarization curves showed that the CrN coated samples had an obvious improved corrosion resistance after the energetic Cr ion bombardment. With the bombarding times of Cr ion increasing from four to ten, the corrosion resistance of CrN coated samples showed a further improvement with corrosion potential increased about 100 mV and the corrosion current density decreased more than one order of magnitude when compared with the non-bombarded CrN coating. [ABSTRACT FROM AUTHOR]

The work reports on the morphologies and the tribological properties of MoS 2 films deposited onto the as-deposited or textured TiN and WC interlayers. The closed-field unbalanced magnetron sputtered MoS 2 film exhibited dense structure without obvious voids or columnar morphology. Meanwhile, plenty of MoS 2 nanowires or nanorods were grown on the film surface. With the laser-textured TiN or WC interlayer introduced, both the textured TiN/MoS 2 film and WC/MoS 2 film exhibited a long lubricating life higher than 8.0 × 105 sliding cycles, much higher than that for the un-textured films or pure MoS 2 film. • MoS 2 films with textured TiN, WC interlayer were deposited by a closed-field unbalanced-magnetron sputtering system. • The deposited MoS 2 film exhibited a dense structure with plenty of nanowires or nanorods grown between the MoS 2 columnar. • The textured TiN/MoS 2 film and WC/MoS 2 film exhibited a long lubricating life higher than 8.0 × 105 sliding cycles. [ABSTRACT FROM AUTHOR]