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crevice corrosion

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Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003662
EISBN: 978-1-62708-182-5
... Abstract Crevice corrosion is a form of localized corrosion that affects many alloys that normally exhibit passive behavior. This article discusses the frequently used crevice corrosion testing and evaluation procedures. These procedures include specific crevice corrosion tests, multiple...
Book Chapter

By R.G. Kelly
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003613
EISBN: 978-1-62708-182-5
... Abstract Crevice corrosion involves three fundamental types of processes such as electrochemical reactions, homogeneous chemical reactions, and mass transport. This article describes the critical factors of crevice corrosion, including crevice geometry, material, environment, crevice corrosion...
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Published: 01 January 2006
Fig. 2 Mechanism of crevice corrosion at a joint. Crevice corrosion is common at weldments or sheet metal joints (a) and can occur in apparently sealed lap joints (b). More
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Published: 01 January 2005
Fig. 19 Multiple-crevice cylinders for use in crevice corrosion testing. Source: Ref 47 More
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Published: 01 January 2005
Fig. 46 Effect of crevice gap and depth on the initiation of crevice corrosion in various stainless steels and alloy 625. The gaps and depths below and to the right of the curve for each material define crevice geometries where initiation of crevice corrosion is predicted by the mathematical More
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Published: 01 January 1990
Fig. 21 Multiple-crevice cylinders for use in crevice corrosion testing. Source: Ref 59 More
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Published: 01 January 2006
Fig. 4 Mechanism of pitting corrosion. As with crevice corrosion, pitting occurs in localized areas that are depleted of oxygen, low in pH, and high in chlorides. More
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Published: 01 January 2006
Fig. 5 Crevice corrosion at the intake flange of an ACI CF-8M stainless steel pump case. Notice that the corrosion damage occurred under the gasket. Courtesy of A.R. Wilfley & Sons, Inc., Pump Division More
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Published: 01 January 2006
Fig. 6 Poor and improved engineering design to avoid crevice corrosion. Source: Ref 31 More
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Published: 01 January 2006
Fig. 9 Severe crevice corrosion of aluminum plate under the antenna mounts resulting from the absence of sealant in the joints More
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Published: 01 January 2006
Fig. 1 Minimum levels of chloride that cause pitting and crevice corrosion in 30 days in SO 2 -saturated chloride solutions at 80 °C (175 °F). Source: Ref 1 More
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Published: 01 January 2006
Fig. 5 Typical appearance of crevice corrosion formed on MA alloy 22 when tested using cyclic potentiodynamic polarization in 1 M NaCl at 90 °C (195 °F). The grain-boundary etching appearance is typical of a hot reducing HCl solution that may be forming inside of the crevice. Specimen More
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Published: 01 January 2005
Fig. 10 Risk of pitting (solid line) and crevice corrosion (dashed line) of standard grades of stainless steel in oxygen-saturated waters with varying chloride levels. Source: Ref 13 More
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Published: 01 January 2005
Fig. 11 Risk of pitting (solid line) and crevice corrosion (dashed line) of higher-alloyed stainless steels in oxygen-saturated waters with varying chloride levels. Dotted line is a plate heat exchanger. Source: Ref 13 More
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Published: 01 January 2005
Fig. 12 Crevice corrosion sites attacked in seawater exposure at 35 °C (95 °F) for various stainless steels having different ferric chloride critical crevice temperatures. Source: Ref 16 More
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Published: 01 January 2005
Fig. 18 Assembled crevice corrosion test specimen. Source: Ref 47 More
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Published: 01 January 2005
Fig. 2 Schematic showing the mechanism of crevice corrosion for titanium in aqueous chloride media More
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Published: 01 January 2005
Fig. 3 Crevice corrosion attack of unalloyed titanium coupon surfaces within tight gasket-to-metal crevices after exposure to hot chloride brines. (a) Before cleaning. (b) After cleaning More
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Published: 01 January 2005
Fig. 6 Schematic of typical crevice corrosion test assembly used for titanium alloy sheet and plate samples. E, assembly and plates; M, alloy test coupons; T, PTFE sheet spacers; B, titanium bolt/nut More
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Published: 01 January 2005
Fig. 37 Temperature-pH limits for crevice corrosion of titanium alloys in naturally aerated NaCl-rich brines (shaded areas indicate susceptibility to attack). (a) Includes grades 7, 11, 16, 17, 26, and 27. Source: Ref 10 , 19 , 143 More