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Corrosion Behavior of 316L Stainless Steel in Simulated Oilfield Wastewater |
ZHANG Longhua1, LI Changjun2, PAN Lei2, HAN Sike1, WANG Xin1, CUI Zhongyu1( ) |
1.School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China 2.Xinjiang Baomo Environment Engineering Co. Ltd. , Karamay 834000, China |
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Abstract The influence of S2- concentration on the corrosion behavior of 316L stainless steel in a simulated oilfield wastewater was studied by means of electrochemical technique and X-ray photoelectron spectroscopy (XPS). The results show that the existence of S2- can accelerate the corrosion of 316L, and with the increase of S2- concentration, its corrosion tendency increases and the corrosion resistance decreases. XPS results demonstrate that FeS presents in the passive film of 316L stainless steel, which hinders the further growth of the film. Moreover, the outer layer of passive film is loose, therewith the protection performance of the film is deteriorated.
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Received: 09 December 2020
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Fund: Key R&D Program Public Welfare Special Fund of Shandong Province(2019GHY112050) |
Corresponding Authors:
CUI Zhongyu
E-mail: cuizhongyu@ouc.edu.cn
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About author: CUI Zhongyu, E-mail: cuizhongyu@ouc.edu.cn
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