| 钛涂层的显微结构和电化学腐蚀性能研究 |
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| 引用本文： | 程正明,邓春明,林秋生,张小锋,刘敏.钛涂层的显微结构和电化学腐蚀性能研究[J].热喷涂技术,2013(4):17-20,11. |
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| 作者姓名： | 程正明 邓春明 林秋生 张小锋 刘敏 |
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| 作者单位： | [1]华南理工大学材料科学与工程学院,广州510640 [2]广州有色金属研究院新材料所,广州510650 |
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| 摘 要： | 采用常规的超音速火焰喷涂和改进的低温超音速火焰喷涂工艺制备钛涂层,对涂层的显微组织、相组成、氧含量以及耐腐蚀性能进行研究.实验结果表明：常规的超音速火焰喷涂制备的钛涂层中有较多的TiO相,涂层内部有显微裂纹产生;而低温超音速火焰喷涂制备的钛涂层,组织均匀致密,没有显微裂纹和氧化物.与常规超音速火焰喷涂钛涂层相比,低温超音速火焰喷涂制备的钛涂层氧含量较低,耐腐蚀性能较好.
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| 关 键 词： | 超音速火焰喷涂 钛涂层 氧含量 耐腐蚀性能 |
Microstructure and Electrochemical Corrosion of Ti Coatings |
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| CHENG Zheng-ming,＇,DENG Chun-ming,LIN Qiu-sheng,ZHANG Xiao-feng＇,LIU Min.Microstructure and Electrochemical Corrosion of Ti Coatings[J].Thermal Spray Technology,2013(4):17-20,11. |
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| Authors: | CHENG Zheng-ming ＇ DENG Chun-ming LIN Qiu-sheng ZHANG Xiao-feng＇ LIU Min |
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| Affiliation: | 2 ( 1.College of Materials Science and Engineering, South China university of Technology, Guangzhou 510640, China; 2.Material Surface Center, Guangzhou Research Institute of Non-Ferrous Metals, Guangzhou 510650, China ) |
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| Abstract: | Ti coatings were prepared by conventional HVOF and low temperature HVOF （LT-HVOF） process, the microstructure, phase composition, oxygen content and corrosion resistance of the coatings were studied in this paper. The results show that TiO oxides and microscopic cracks are observed in HVOF Ti coating; while LT- HVOF Ti coating exhibits uniform and dense microstructure, and microscopic cracks and oxide are not found in it. Compared with conventional HVOF Ti coating, LT-HVOF Ti coating owns much lower oxygen content and is more resistant to corrosion. |
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| Keywords: | HVOF Ti coating Oxygen content Corrosion resistance |
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