CHEN Mao-jun,LI Guo-ming.Study on Anticorrosion of Acid and Hydrogen Sulfide Corrosion of Flare Sprayed Ni20 Alloy Coating[J],37(2):50-51 |
Study on Anticorrosion of Acid and Hydrogen Sulfide Corrosion of Flare Sprayed Ni20 Alloy Coating |
Received:November 26, 2007 Revised:April 10, 2008 |
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KeyWord:Flare spraying Alloy coating Corrosion Hydrogen sulfide Anticorrosion of acid |
Author | Institution |
CHEN Mao-jun |
Xian Aeronautical Polytechnic Institute, Xian , China |
LI Guo-ming |
Engineering Company of Construction, Changqing Petroleum Detection Department, Xian , China |
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Abstract: |
N80 steel is eroded very seriously in the solution of hydrogen sulfide and acid. The surface treatment technology was used to improve its anticorrosion. Ni20 alloys coating was prepared on the N80 steel substrate by utilize oxygen acetylene flare sprayed, then use the way of solution corrosion, the anticorrosion of N80 mild steel and oxygen acetylene flare sprayed Ni20 alloy coating were compared under the same experiment condition. The structure of alloy coating was observed by scanning electron microscopy ( SEM) and the effect of corrosion process was assessed by X-ray diffraction technique. The experiment result shows that the anticorrosion of coating is better than that of N80 mild steel, but Ni20 coatings anticorrosion effect is bad because of rate of core. |
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