Dense titanium coatings by modified HVOF spraying
Dense titanium coatings by modified HVOF spraying
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DOI：
10.1016/j.surfcoat.2006.01.056
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发表时间：
2006-10-05
影响因子：
5.4
通讯作者：
Fukanuma, Hirotaka
中科院分区：
文献类型：
--
作者：
Kawakita, Jin;Kuroda, Seiji;Fukanuma, Hirotaka
钛在海水等含氯化物的环境中具有优异的腐蚀性能。通过在燃烧室和送粉口之间引入混合室，开发了改进的高速氧燃料 (HVOF) 喷涂工艺。将氮气送入混合室以控制燃烧室中产生的燃烧气体的温度。通过控制氮气流量，可以制备具有不同氧化程度和孔隙率的各种钛涂层。经过一个月的实验室测试，采用这种表面抛光处理工艺生产的最致密的涂层在人工海水中的钢基材上保持了优异的腐蚀保护。 (c) 2006 Elsevier B.V. 保留所有权利。
Titanium has an excellent corrosion property in chloride containing environments such as seawater. A modified high velocity oxy-fuel (HVOF) spray process was developed by introducing a mixing chamber between the combustion chamber and the powder feed port. Nitrogen gas was fed into the mixing chamber to control the temperature of the combustion gas generated in the combustion chamber. By controlling the flow rate of nitrogen, various Ti coatings with different degrees of oxidation and porosities could be fabricated. The densest coating produced by this process with surface polishing treatment maintained excellent corrosion protection over a steel substrate in artificial seawater in a laboratory test over I month. (c) 2006 Elsevier B.V. All rights reserved.