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How to prevent galvanic corrosion between aluminum and stainless steel

There are a number of different approaches to limit the likelihood or impact of galvanic corrosion occuring.

What is galvanic corrosion?

Galvanic corrosion is an electrochemical process that exists when two dissimilar metals are in contact with one another via an electrolyte.

How to remove fretting corrosion

As fretting corrosion will likely result in the removal of a significant proportion of the metal surface, the impact of it cannot be removed.

What is fretting corrosion?

Fretting is the action of two metal surfaces rubbing against each other, resulting in mechanical damage.

What are the consequences of crevice corrosion?

The consequences of crevice corrosion are generally more severe than for pitting corrosion.

What are the consequences of pitting corrosion?

The impact of pitting corrosion will depend upon the extent and depth of the corrosion pits that are formed.

How to repair pitting corrosion

Pitting corrosion is a non-reversible process i.e. once corrosion has begun you can only deal with the consequences.

What causes pitting corrosion?

Pitting corrosion generally occurs in aggressive environments, and where the protective passive film is damaged.

How to measure pitting corrosion

There are many different approaches to the measurement of corrosion, and specifically pitting corrosion.

How to prevent crevice corrosion

The best defence against crevice corrosion is to limit the potential for crevices.

What is the difference between pitting and crevice corrosion?

The main difference between pitting and crevice corrosion is the geometry of the corrosion site.

How does crevice corrosion occur?

The most common form of crevices are very small gaps and contact points around fasteners, joints and washers.

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