| 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 |
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| 引用本文： | 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,2021,50(8):2670-2677. |
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| 作者姓名： | 邹柯 邓春明 邹俭鹏 刘敏 刘学璋 赵瑞敏 李顺华 朱仁波 高迪 |
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| 作者单位： | 中南大学 粉末冶金国家重点实验室，湖南 长沙 410083;广东省新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广东 广州 510650,广东省新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广东 广州 510650,中南大学 粉末冶金国家重点实验室，湖南 长沙 410083,广东省新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广东 广州 510650,广东省新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广东 广州 510650,云南云铝涌鑫铝业有限公司，云南 红河 663000,云南云铝涌鑫铝业有限公司，云南 红河 663000,中南大学 粉末冶金国家重点实验室，湖南 长沙 410083,中南大学 粉末冶金国家重点实验室，湖南 长沙 410083 |
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| 基金项目： | 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). |
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| 摘 要： | 采用超音速大气等离子喷涂制备全包覆TiB2-SiC涂层，研究了TiB2-SiC涂层在400和800 ℃的氧化性能，并探究其氧化机理。对TiB2-SiC涂层在900 ℃下的抗铝熔盐腐蚀性能进行研究，并探讨其耐熔盐腐蚀机理。结果表明，超音速大气等离子喷涂制备的TiB2-SiC涂层具有良好的抗氧化性，在400 ℃的氧化速率常数为1.92×10-5 mg2·cm-4·s-1，在800 ℃的氧化速率常数为1.82×10-4 mg2·cm-4·s-1。超音速大气等离子喷涂制备的TiB2-SiC涂层在900 ℃下具有良好的抗熔盐腐蚀性能，熔盐腐蚀后TiB2-SiC涂层都保持致密结构，未发生涂层的开裂及剥落。
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| 关 键 词： | 超音速大气等离子喷涂 TiB2-SiC涂层 抗氧化性能 耐熔盐腐蚀性能 |
| 收稿时间： | 2020/7/15 0:00:00 |
| 修稿时间： | 2020/9/16 0:00:00 |
Resistance Behavior to Oxidation and Molten Salt Corro-sion of Supersonic Atmospheric Plasma Sprayed TiB2-SiC Coating |
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| Zou Ke,Deng Chunming,Zou Jianpeng,Liu Min,Liu Xuezhang,Zhao Ruimin,Li Shunhu,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. |
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| Authors: | Zou Ke Deng Chunming Zou Jianpeng Liu Min Liu Xuezhang Zhao Ruimin Li Shunhu Zhu Renbo and Gao Di |
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| Affiliation: | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China;The Key Laboratory of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Guangdong Institute of New Materials, Guangzhou 510650, China,The Key Laboratory of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Guangdong Institute of New Materials, Guangzhou 510650, China,State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China,The Key Laboratory of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Guangdong Institute of New Materials, Guangzhou 510650, China,The Key Laboratory of Guangdong for Modern Surface Engineering Technology, National Engineering Laboratory for Modern Materials Surface Engineering Technology, Guangdong Institute of New Materials, Guangzhou 510650, China,Yunnan Yunlv Yongxin Aluminum Company Limited, Honghe 663000, China,Yunnan Yunlv Yongxin Aluminum Company Limited, Honghe 663000, China,State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China,State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
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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. |
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| Keywords: | supersonic atmospheric plasma spraying (SAPS) TiB2-SiC coating oxidation resistance resistance to molten salt corrosion |
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