Guruviah, S. and Chandrasekaran, V. and Ganesasarma, V. and Nalini, T. (1985) Evaluation of protective coatings for gas pipelines. Bulletin of Electrochemistry , 01 (01). pp. 29-31. ISSN 0256-1654

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Mild steel pipelines carrying coke oven (CO)b,l ast furnace (BF)a nd mixed gases in steel plants are prone to attack by certain constituents of the gas. The rate of corroslon of the internal surface of a gas pipeline can be combated by applying a suitable internal protective coating to the pipeline. In this paper, varrous types of protective schemes (developed and commercial) were applied on sand blasted r:iild steel panels and the coated panels were evaluated by capacitance or resistance measurements and immersion tests in various electrolyte and gas condensates. It was shown that the following protect~ve schemes gave good performance in all the tests. 1. Zmc-sodium silicate + epoxy TiOz 2. Zinc-rich epoxy + eDoxY Tior 3. Zinc-rich + black finish (com) 4. Zinc-rich epoxy + coal tar epoxy

Item Type: Article
Subjects: Corrosion Science and Engineering
Depositing User: ttbdu cecri
Date Deposited: 20 Mar 2012 18:06
Last Modified: 20 Mar 2012 18:06

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