Electrodissolution of 304 stainless steel in neutral electrolytes for surface decontamination applications
DSpace at IIT Bombay
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Title |
Electrodissolution of 304 stainless steel in neutral electrolytes for surface decontamination applications
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Creator |
NEERGAT, M
WEISBROD, KR |
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Subject |
HIGH-CURRENT DENSITIES
HIGH-RATE DISSOLUTION 316L STAINLESS-STEEL CLOSED-CELL SYSTEM ANODIC-DISSOLUTION MASS-TRANSPORT SULFURIC-ACID TRANSPASSIVE DISSOLUTION CORROSION-RESISTANCE FUNDAMENTAL-ASPECTS Stainless steel XPS Anodic dissolution Anodic films Selective oxidation Segregation |
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Description |
Brightening of 304 stainless steel in concentrated electrolytes of Na(2)SO(4), Li(2)SO(4), NaNO(3), LiNO(3), NH(4)NO(3), and Ca(NO(3))(2) was studied. It is observed that the current efficiency and quality of the surface depend on the electrolyte concentration, ions present in the electrolyte and the operating current density. While sulfate electrolytes etch the electrodes, oxidizing electrolytes generally yield brightened surfaces. Surface brightening is achieved at the lowest current density in LiNO(3)/Na(2)Cr(2)O(7) composite electrolyte at a pH of 5.2. The results are explained on the basis of salt film formation near the specimen surface. (C) 2011 Elsevier Ltd. All rights reserved.
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Publisher |
PERGAMON-ELSEVIER SCIENCE LTD
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Date |
2012-06-26T06:35:21Z
2012-06-26T06:35:21Z 2011 |
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Type |
Article
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Identifier |
CORROSION SCIENCE,53(12)3983-3990
0010-938X http://dx.doi.org/10.1016/j.corsci.2011.08.001 http://dspace.library.iitb.ac.in/jspui/handle/100/14051 |
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Language |
English
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