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Comparative Study on Chemical Stripping of Titanium Oxide Films Formed on Titanium Alloy
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Comparative Study on Chemical Stripping of Titanium Oxide Films Formed on Titanium Alloy
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    摘要:

    采用兩種不含氫氟酸或氟化物的溶液 (ⅰ過氧化氫和硫酸，ⅱ過氧化氫和氫氧化鈉) 對比研究鈦合金陽極氧化膜的退除行為。采用掃描電鏡和拉曼光譜分析氧化膜退除前后的形貌和結(jié)構(gòu)，采用原子力顯微鏡表征樣品表面三維形貌和粗糙度。結(jié)果表明：氧化膜均能被這兩種溶液退除，但溶液ⅰ退除后表面會有殘余氧化物。兩種退膜方法均明顯受鈦合金基體微觀結(jié)構(gòu)的影響，條狀α 相和β相較易受溶液ⅰ影響，而等軸α 相更易被溶液ⅱ溶解。溶液ⅱ退除后的表面明顯比溶液ⅰ退除后的表面平整。相對于ⅰ，溶液ⅱ更環(huán)保，效果更好

    Abstract:

    Two methods for stripping of anodic oxide films formed on titanium alloys Ti-6.5Al-1Mo-1V-2Zr without hydrofluoric acid or fluoride were studied: ⅰ using hydrogen peroxide with sulfuric acid and ⅱ using hydrogen peroxide with sodium hydroxide. The morphologies and microstructures of the oxide films before and after stripping were compared by SEM and Raman spectroscopy. The surface topography and roughness of the samples were detected by AFM. The results show that the oxide films can be stripped both by the two methods and the stripping process is affected by the microstructure of the matrix material obviously. β or platelet α phases are more affected by the solution ⅰ while globular α phase is preferentially dissolved by the solution ⅱ. The surface stripped by solution ⅱ is flatter than that by solution ⅰ. Compared to solution ⅰ, solution ⅱ presents better environmental friendly result and lower cost

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劉建華,吳國龍,李松梅,于 美,易俊蘭,吳 量. Comparative Study on Chemical Stripping of Titanium Oxide Films Formed on Titanium Alloy[J].稀有金屬材料與工程,2012,41(8):1331~1335.[Liu Jianhua, Wu Guolong, Li Songmei, Li Songmei, Yi Junlan, Wu Liang. Comparative Study on Chemical Stripping of Titanium Oxide Films Formed on Titanium Alloy[J]. Rare Metal Materials and Engineering,2012,41(8):1331~1335.]
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  • 收稿日期:2011-08-09
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