2-SiC涂層，研究了TiB2-SiC涂層在400和800 ℃的氧化性能，并探究其氧化機(jī)理。對(duì)TiB2-SiC涂層在900 ℃下的抗鋁熔鹽腐蝕性能進(jìn)行研究，并探討其耐熔鹽腐蝕機(jī)理。結(jié)果表明，超音速大氣等離子噴涂制備的TiB2-SiC涂層具有良好的抗氧化性，在400 ℃的氧化速率常數(shù)為1.92×10-5 mg2·cm-4·s-1，在800 ℃的氧化速率常數(shù)為1.82×10-4 mg2·cm-4·s-1。超音速大氣等離子噴涂制備的TiB2-SiC涂層在900 ℃下具有良好的抗熔鹽腐蝕性能，熔鹽腐蝕后TiB2-SiC涂層都保持致密結(jié)構(gòu)，未發(fā)生涂層的開(kāi)裂及剝落。;The fully-coated TiB2-SiC coating was prepared by supersonic atmospheric plasma spraying (SAPS). The oxidation performance of TiB2-SiC coating at 400 and 800 °C was studied and the oxidation mechanism was investigated. The corrosion resistance of TiB2-SiC coating to aluminum melting salt at 900 °C was studied, and the anti-corrosion mechanism of molten salt was discussed. The results show that the TiB2-SiC coating prepared by SAPS has good anti-oxidation performance. The oxidation rate constant at 400 °C is 1.92×10-5 mg2·cm-4·s-1, and that at 800 °C is 1.82×10-4 mg2·cm-4·s-1. The TiB2-SiC coating prepared by SAPS has good resistance to molten salt corrosion at 900 °C. TiB2-SiC coating maintains a dense structure after molten salt corrosion, and cracking and peeling of the coating do not occur."/>
2-SiC涂層;抗氧化性能;耐熔鹽腐蝕性能;supersonic atmospheric plasma spraying (SAPS);TiB2-SiC coating;oxidation resistance;resistance to molten salt corrosion"/>