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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23466

Title: 高強度鈦合金高溫乾空氣與含水汽之氧化行為研究
Effect of Water Vapor on High-temperature Oxidation of Commercial Titanium-based Alloys
Authors: R. F. Wang;T. S. Chiou;W. Kai
Contributors: NTOU:Institute of Materials Engineering
Keywords: TiO2;Al2O3;Commercial Ti-base alloys;Oxidation behavior;Water vapor;Parabolic-rate law;TiO2;Al2O3
Date: 2007-12
Issue Date: 2011-10-20T08:06:19Z
Publisher: Journal of Chinese Corrosion Engineering
Abstract: Abstract:The effect of water vapor on the high-temperature oxidation behavior of commercial Ti-6Al-4V (Ti-6-4) and Ti-4.5Al-3V-2Mo-2Fe (SP-700) alloys was studied over the temperature range of 700~900 ℃ in air. The results showed that the oxidation kinetics of the two alloys followed the parabolic rate law, and the oxidation rate constants (kp values) of the alloys gradually increased with increasing temperature. It was found that kp values of the two alloys (Ti-6-4 and SP-700) oxidized in air containing water vapor were much faster than those in dry air. The scales formed on the alloys consisted mostly of TiO2 and minor Al2O3. The scale thickness of the two alloys in water-vapor containing air is much thicker and more porous, which is responsible for the fast oxidation rates, as compared to that in dry air.
Relation: 21(4), pp.315-320
URI: http://ntour.ntou.edu.tw/handle/987654321/23466
Appears in Collections:[材料工程研究所] 期刊論文

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