pitting corrosion

Similar to 2205 for strength but with lower pitting corrosion resistance due to low Molybdenum.

The difference between pitting corrosion and micropitting is the size of the pits after surface fatigue.

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

Pipeline failures due to pitting corrosion.

The most common failure seen in the last 20 years is pitting corrosion in cold water tubes, also known as Type 1 pitting.

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

Bacterial corrosion may appear in form of pitting corrosion, for example in pipelines of the oil and gas industry.

Pitting corrosion of beryllium cladding is a significant concern during prolonged storage of pits in the Pantex facility.

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

Pitting corrosion, or pitting, is a form of extremely localized corrosion that leads to the creation of small holes in the metal.

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

Chloride anions induce both localized corrosion (pitting corrosion) and generalized corrosion of steel reinforcements.

As other oxidized species of sulfur, such as thiosulfate, tetrathionate can be responsible for the pitting corrosion of carbon steel and stainless steel.

In acidic conditions, thiosulfate causes rapid corrosion of metals; steel and stainless steel are particularly sensitive to pitting corrosion induced by thiosulfate.

Alloys most susceptible to pitting corrosion are usually the ones where corrosion resistance is caused by a passivation layer: stainless steels, nickel alloys, aluminum alloys.

A solution of zinc chloride in hydrochloric acid is a common flux for stainless steels; it has however to be thoroughly removed afterwards as it would cause pitting corrosion.

Halide ions increase corrosion in two ways; they chemically attack passivating oxide films on several metals causing pitting corrosion, and they increase the conductivity of the fuel.

Corrosion occurs in various forms in the refining process, such as pitting corrosion from water droplets, embrittlement from hydrogen, and stress corrosion cracking from sulfide attack.

If breakdown occurs in the passive film due to chemical or mechanical factors, the resulting major modes of corrosion may include pitting corrosion, crevice corrosion and stress corrosion cracking.

The use of graphite is limited by its tendency to facilitate pitting corrosion in some stainless steel, and to promote galvanic corrosion between dissimilar metals (due to its electrical conductivity).

The driving power for pitting corrosion is the depassivation of a small area, which becomes anodic while an unknown but potentially vast area becomes cathodic, leading to very localized galvanic corrosion.

Marine grade stainless, or SAE 316 stainless steel is the second most common austenite stainless steel, preferred for use in marine environments for its greater resistance to pitting corrosion.

Pitting corrosion can also help initiate stress corrosion cracking, as happened when a single eyebar on the Silver Bridge, West Virginia failed, killing 46 people on the bridge in December, 1967.

The presence of chlorides, e.g. in seawater, significantly aggravates the conditions for pitting corrosion of most metals (including stainless steels and high-alloyed materials) by enhancing the formation and growth of the pits through an autocatalytic process.

Contamination of the pit with deuterium and tritium, whether accidental or if filled by design, can cause a hydride corrosion, which manifests as pitting corrosion and a growth of a surface coating of pyrophoric plutonium hydride.