Crevice corrosion is a type of localized corrosion which occurs in confined spaces (crevices) where the access of the working fluid is limited. The corrosion process can be attributed to the following factors:

1. Formation of biofilm on metal surface: Biofilms can trap corrosive agents like water, oxygen, and ions, creating a localized corrosive environment. This can lead to crevice corrosion.

2. Presence of two dissimilar metals: This can lead to galvanic corrosion, which is a different type of corrosion. However, if one of these metals is in a crevice, it can lead to crevice corrosion.

3. Shielded areas on the metal surface: These are the typical locations where crevice corrosion occurs. The shielded areas can trap corrosive agents, creating a localized corrosive environment.

4. Removal of paints/lacquers: Paints and lacquers act as protective coatings that prevent corrosion. Their removal can expose the metal surface to corrosive agents, leading to crevice corrosion if the exposed area is in a crevice.

So, all the given attributes can contribute to crevice corrosion.

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Crevice corrosion is a type of localized corrosion which occurs in confined spaces (crevices) where the access of the working fluid is limited. The corrosion process can be attributed to the following factors:

1. Formation of biofilm on metal surface: Biofilms can trap corrosive agents like water, oxygen, and ions, creating a localized corrosive environment. This can lead to crevice corrosion.

2. Presence of two dissimilar metals: This can lead to galvanic corrosion, which is a different type of corrosion. However, if one of these metals is in a crevice, it can lead to crevice corrosion.

3. Shielded areas on the metal surface: These are the typical locations where crevice corrosion occurs. The shielded areas can trap corrosive agents, creating a localized corrosive environment.

4. Removal of paints/lacquers: Paints and lacquers act as protective coatings that prevent corrosion. Their removal can expose the metal surface to corrosive agents, leading to crevice corrosion if the exposed area is in a crevice.

So, all the given attributes can contribute to crevice corrosion.

Knowee AI · Accepted Answer

Crevice corrosion is a type of localized corrosion which occurs in confined spaces (crevices) where the access of the working fluid is limited. The corrosion process can be attributed to the following factors:

1. Formation of biofilm on metal surface: Biofilms can trap corrosive agents like water, oxygen, and ions, creating a localized corrosive environment. This can lead to crevice corrosion.

2. Presence of two dissimilar metals: This can lead to galvanic corrosion, which is a different type of corrosion. However, if one of these metals is in a crevice, it can lead to crevice corrosion.

3. Shielded areas on the metal surface: These are the typical locations where crevice corrosion occurs. The shielded areas can trap corrosive agents, creating a localized corrosive environment.

4. Removal of paints/lacquers: Paints and lacquers act as protective coatings that prevent corrosion. Their removal can expose the metal surface to corrosive agents, leading to crevice corrosion if the exposed area is in a crevice.

So, all the given attributes can contribute to crevice corrosion.

Which of the following attributes crevice corrosion? ans. Formation of biofilm on metal surface Presence of two dissimilar metals Shielded areas on the metal surface Removal of paints/lacquers

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