| Because the ship serve in the sea environment for the long time, the compressor vane were subjected to erosion and corrosion of high-speed, high pressure, wet air currents directly, and the damage and failure caused by erosion and wear. The paper analyzes the chemical composition and structure of compressor vane materials, and determines the model of the used steel for aiming at the research of ship made in China. To improve the anti-corrosion and wear-resistant properties of compressor vane, the TiN films are successfully prepared on vane through magnetron sputtering way in this paper. Then, we study the corrosion mechanism of vane, analyze the failure mode of corrosion, calculate the corrosion rate, and compare the anti-corrosion properties of sputtering samples with the substrate through the Laboratory accelerated salt experiments. Moreover, we carry out the evaluation of sputtered coatings through wear experimental, and analyze the failure mechanism of wear. The above work provides the theoretical support for the design and application of vane of high performance.The Research shows: the used vane materials are 11X11H2B2MΦA of Russian steel, belonging to martenstic stainless steel, which is similar with 1Cr11Ni2W2MoV stainless steel materials. In the preparation of TiN films by magnetron sputtering, the processing parameters have a significant impact on the mechanical properties, optical properties and structure of titanium nitride films. The properties and structure of TiN films are mainly determined by the N2 mass flow rate, and as the N2 mass flow rate increases, the structure of the TiN films transforms to f.c.c. type leading to better the properties of films. The presence of negative bias voltage can optimize the grain of TiN films, lower the defect proportion and denser the films, which improves the hardness of films. After the Salt fog experiment, we calculate the unit area loss of weight of the substrate and sputtered coatings, and measured theirs anodic polarization Curve. The results showed that the anti-corrosion of sputtering coating is superior to the anti-corrosion of the matrix. The friction and wear experiment further show that the sputtering TiN film enhance the wear-resistant properties of vane. |
