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Crevice corrosion refers to corrosion occurring in occluded spaces such as interstices in which a stagnant solution is trapped and not renewed. [1] These spaces are generally called crevices. Examples of crevices are gaps and contact areas between parts, under gaskets or seals, inside cracks and seams, spaces filled with deposits and under ...
Corrosion in the crevice between the tube and tube sheet (both made of type 316 stainless steel) of a heat exchanger in a seawater desalination plant Crevice corrosion is a localized form of corrosion occurring in confined spaces (crevices), to which the access of the working fluid from the environment is limited.
A crevice is a fracture or fissure in rock. Crevice may also refer to: Crevice corrosion, occurs in spaces to which the access of corrosion-resistant fluid is limited; Crevice kelpfish (Gibbonsia montereyensis), a species of subtropical clinid; Crevice Spiny Lizard (Sceloporus poinsettii), a small, typically shy, phrynosomatid lizard
However, crevice corrosion is also a significant possibility and a PREN > 40 is typically specified for seawater service. [1] [2] [3] These alloys need to be manufactured and heat treated correctly to be seawater corrosion resistant to the expected level. PREN alone is not an indicator of corrosion resistance.
Pyridine and its derivatives are also effective in inhibiting localized corrosion, such as pitting and crevice corrosion (Figure 4). [8] Figure 4. Example of pyridines. Azoles: Azoles, such as triazole and benzotriazole, oxazole and benzoxazoles, thioazoles, and benzothioazoles, are organic compounds used as corrosion inhibitors in the ...
Corrosion engineering; Corrosion fatigue; Corrosion in ballast tanks; Corrosion in space; Corrosion loop; Corrosion mapping by ultrasonics; Corrosion monitoring; Corrosion Science; Corrosion under insulation; Cover meter; Crevice corrosion; Cyclic corrosion testing
The unshaded bars indicate the location on the chart of those steels when in acidic/stagnant water ( like in the bilge ), where crevice-corrosion happens. Notice how the *same* steel has much different galvanic-series location, depending on the electrolyte it's in, making prevention of corrosion .. more difficult.
Corrosion engineering is an engineering specialty that applies scientific, technical, engineering skills, and knowledge of natural laws and physical resources to design and implement materials, structures, devices, systems, and procedures to manage corrosion. [1]