Non-chromate deoxidation of AA2024-T3: Sodium bromate–nitric acid (20–60°C)
作者： T.G. Harvey , A.E. Hughes , S.G. Hardin , T. Nikpour , S.K. Toh
DOI: 10.1016/J.APSUSC.2007.11.061
关键词: Bromate 、 Nitric acid 、 Scanning electron microscope 、 Intermetallic 、 Chromate conversion coating 、 X-ray photoelectron spectroscopy 、 Inorganic chemistry 、 Chemistry 、 Aluminium 、 Sodium bromate 、 Surfaces, Coatings and Films
摘要: The effect of a non-chromate deoxidiser (bromate-nitric acid) on AA2024-T3 has been examined by SEM, TEM/EELS and XPS. At low temperatures (20 °C) the removed all intermetallics but had little surface oxide. 40 °C, attack was again extensive there also evidence oxide covering matrix after 10 min immersion, leaving roughened porous 60 removal complete longer immersion times resulted in characteristic scalloped structure across which became more pronounced with increasing time.
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