Corrosion behaviour of boronized low carbon steel |
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| Affiliation: | 1. Division of Psychiatry and Applied Psychology, School of Medicine, University of Nottingham, Nottingham NG7 2TU, United Kingdom;2. REMS Nogara (VR), Aulss 9, Veneto Region 37054, Italy;3. Italian National Institute of Health, Viale Regina Elena 299 – 00161, Rome, Italy;4. Department of Health Sciences, University of Firenze, Largo Brambilla 3, 50134 Firenze, Italy;5. Local Health Unit Centre of Toscana, Viale della Piazzuola 56, 50133 Firenze, Italy;1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Guangzhou Marine Geological Survey, China Geological Survey, Ministry of Natural Resources, Guangzhou 510075, China |
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| Abstract: | In this paper we present the results of corrosion resistance of boronized 1020 steel in naphthenic acid and during high temperature oxidation. The boride layer, consisting of FeB in the outer region and Fe2B in the inner zone, was found to be extremely resistant to naphthenic acid containing media, both in the liquid and vapour phase. During high temperature oxidation in air at 650°C a very thin, 10M protective oxide layer was formed on the boronized steel, indicating that the boride layer acts as a barrier to oxygen and/or Fe diffusion. Finally both the morphology and distribution of FeB/Fe2B layers changed during high temperature oxidation. |
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