| Summary: | The paper deals with the (Cr<sub>1−x</sub>Al<sub>x</sub>)N coating containing 17 to 54 % Al which is deposited on AISI 430 stainless steel stationary substrates by short-pulse high-power dual magnetron sputtering of Al and Cr targets. The Al/Cr ratio in the coating depends on the substrate position relative to magnetrons. It is shown that the higher Al content in the (Cr<sub>1−x</sub>Al<sub>x</sub>)N coating improves its hardness from 17 to 28 GPa. Regardless of the Al content, the (Cr<sub>1−x</sub>Al<sub>x</sub>)N coating manifests a low wear rate, namely (4.1–7.8) × 10<sup>−9</sup> and (3.9–5.3) × 10<sup>−7</sup> mm<sup>3</sup>N<sup>−1</sup>m<sup>−1</sup> in using metallic (100Cr6) and ceramic (Al<sub>2</sub>O<sub>3</sub>) counter bodies, respectively. In addition, this coating possesses the friction coefficient 0.4–0.7 and adhesive strength quality HF1 and HF2 indicating good interfacial adhesion according to the Daimler-Benz Rockwell-C adhesion test.
|
|---|