crevice corrosion

The initiation and progress of crevice corrosion can be difficult to detect.

For example, steam generators in nuclear power plants degrade largely by crevice corrosion.

Stainless steel components for example are subject to crevice corrosion in anoxic waters.

The susceptibility to crevice corrosion varies widely from one material-environment system to another.

The mechanism of pitting corrosion is probably the same as crevice corrosion.

Tungum resists both stress and crevice corrosion in marine environments/atmospheres.

In general, crevice corrosion is of greatest concern for materials which are normally passive metals, like stainless steel or aluminum.

Crevice corrosion occurs around the joints and seams of metal fixtures where dirt accumulates.

Used to test the pitting and crevice corrosion resistance of stainless steels and other alloys.

Crevice corrosion can be viewed as a less severe form of localized corrosion when compared with pitting.

The mechanism of crevice corrosion can be (but is not always) similar to that of pitting corrosion.

The small quantity of palladium added gives it enhanced crevice corrosion resistance at low temperatures and high pH.

Crevice corrosion refers to corrosion occurring in confined spaces to which the access of the working fluid from the environment is limited.

Depending on the environment developed in the crevice and the nature of the metal, the crevice corrosion can take a form of:

Crevice corrosion is extremely dangerous because it is localized and can lead to component failure while the overall material loss is minimal.

The susceptibility to crevice corrosion can be evaluated with ASTM standard procedures.

Crevice corrosion is a very similar mechanism to pitting corrosion; alloys resistant to one are generally resistant to both.

Crevice Corrosion at Pipe Supports: Causes and Solutions (paper)

They have high resistance to crevice corrosion, stress corrosion cracking and hydrogen embrittlement that can be troublesome to other alloy systems.

Crevice corrosion tends to be of greatest significance to components built of highly corrosion-resistant superalloys and operating with the purest-available water chemistry.

It also has greater resistance to chloride pitting, crevice corrosion and stress corrosion cracking than exhibited by the standard 300 series stainless steels.

The depth of penetration and the rate of propagation in pitting corrosion are significanatly greater than in crevice corrosion.

These alloys have good resistance to chloride pitting and crevice corrosion and are not susceptible to chloride stress corrosion.

A critical crevice corrosion temperature is commonly used to rank a material's resistance to crevice corrosion.

Crevice corrosion is influenced by the crevice type (metal-metal, metal-nonmetal), crevice geometry (size, surface finish), and metallurgical and environmental factors.