Knowledge Management System Of Institute of process engineering,CAS
|Place of Conferral||北京|
Electrochemical properties of thermal-sprayed aluminium (FSA) coatings were measured using AC impedence method and couple corrosion method to determine the performance of this coating as a barrier coating of aluminium and a sacrificial anode for steel in crude oil/3000 ppm NaCl solution. Speciments were prepared with three types of aluminium alloy using 02-C2H2 flame sprayed method. Part of speciments were sealed with epoxy resin. The AC impedence test showed sealed FSA coated steel were much more resist to corrosion than bare steel. Corrosion rate of FSA coated steel was controled by charge transfer and diffusion. Contact corrosion test showed that if properly applied, FSA coatings will provide adequate cathodic protection to steel. The sealed aluminium coatings provided superior performance compared to sealed Al-Mg and Al-Cu alloy coatings in terms of both resistance as a barrier coating and as a sacrificial anode. If the area ratio of the FSA coated surface to the bare steel surface that have to be protected was no more than 8 percent, sealed Al coating can provided service life of at least 20 years as a sacrificial coating.
|苏平. 涂铝钢板在原油/盐水介质中的防腐蚀性能的电化学研究[D]. 北京. 中国科学院研究生院,1988.|
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|涂铝钢板在原油-盐水介质中的防腐蚀性能的（2536KB）||学位论文||限制开放||CC BY-NC-SA||Application Full Text|
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