In earlier papers, the initiation of crevice corrosion of austenitic stainless steels was characterized by a crevice corrosion temperature (CCT).1,2 The CCT was defined as that temperature below which corrosion will not initiate at the most severe crevice geometry in a sample of stainless steel exposed to an oxidizing acid chloride environment such as 10% FeCl3. The CCT was determined experimentally on a go/no-go basis by means of step-wise increases in temperature of 2.5 C at 24 hour intervals. At the end of each isothermal exposure period, the stainless steel coupon was examined visually for any corrosion attack (edge, end-grain, crevice, etc.). If no attack was observed, the coupon was exposed for a further 24 hours at a 2.5 C higher temperature. In this way, the CCT was bracketed by that 2.5 C interval in which the go/no-go characteristics were observed. For Mn-substituted austenitic stainless steels in...
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1 October 1981
Research Article|
October 01 1981
Technical Note: On the Variability of Crevice Corrosion Initiation in Ferric Chloride Exposure Tests*
R. J. Brigham
R. J. Brigham
*Corrosion Science Section, Physical Metallurgy Research Laboratories, CANMET; Energy, Mines and Resources, Ottawa,
Canada
.
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Online ISSN: 1938-159X
Print ISSN: 0010-9312
National Association of Corrosion Engineers
1981
CORROSION (1981) 37 (10): 608–609.
Citation
R. J. Brigham; Technical Note: On the Variability of Crevice Corrosion Initiation in Ferric Chloride Exposure Tests*. CORROSION 1 October 1981; 37 (10): 608–609. https://doi.org/10.5006/1.3578197
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