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邹柯,邓春明,邹俭鹏,刘敏,刘学璋,赵瑞敏,李顺华,朱仁波,高迪.超音速大气等离子喷涂TiB2-SiC涂层的抗氧化性及耐熔盐腐蚀性能[J].稀有金属材料与工程(英文),2021,50(8):2670~2677.[Zou Ke,Deng Chunming,Zou Jianpeng,Liu Min,Liu Xuezhang,Zhao Ruimin,Li Shunhua,Zhu Renbo and Gao Di.Resistance Behavior to Oxidation and Molten Salt Corro-sion of Supersonic Atmospheric Plasma Sprayed TiB2-SiC Coating[J].Rare Metal Materials and Engineering,2021,50(8):2670~2677.]
Resistance Behavior to Oxidation and Molten Salt Corro-sion of Supersonic Atmospheric Plasma Sprayed TiB2-SiC Coating
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Received:July 15, 2020  
DOI:
Key words: supersonic atmospheric plasma spraying (SAPS)  TiB2-SiC coating  oxidation resistance  resistance to molten salt corrosion
Foundation item:Guangdong Academy of Sciences project(2018GDASCX-0402) and Yunnan Science and technology plan project(2018IC080) and The Natural Science Foundation of Hunan Province (No. 2018JJ2524).
Author NameAffiliation
Zou Ke,Deng Chunming,Zou Jianpeng,Liu Min,Liu Xuezhang,Zhao Ruimin,Li Shunhua,Zhu Renbo and Gao Di  
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Abstract:
      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.