pitting

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Related to Pitting corrosion: Crevice corrosion, Intergranular corrosion, stress corrosion

pit 1

 (pĭt)
n.
1. A natural or artificial hole or cavity in the ground.
2.
a. An excavation for the removal of mineral deposits; a mine.
b. The shaft of a mine.
3. A concealed hole in the ground used as a trap; a pitfall.
4. A small indentation in a surface: pits in a windshield.
5.
a. A natural hollow or depression in the body or an organ.
b. A small indented scar left in the skin by smallpox or other eruptive disease; a pockmark.
c. Zoology Either of a pair of depressions between the nostril and the eye of a pit viper that contain heat-sensing organs.
d. Botany A cavity in the wall of a plant cell where there is no secondary wall, as in fibers, tracheids, and vessel elements.
e. Informal An armpit.
6. An enclosed, usually sunken area in which animals, such as dogs or gamecocks, are placed for fighting.
7.
a. The section directly in front of and below the stage of a theater, in which the musicians sit.
b. Chiefly British The ground floor of a theater behind the stalls.
8.
a. The section of an exchange where trading in a specific commodity is carried on.
b. The gambling area of a casino.
9.
a. A sunken area in a garage floor from which mechanics may work on cars.
b. often pits Sports An area beside an auto racecourse where cars may be refueled or serviced during a race: pulled into the pits to have the tires rotated.
10.
a. Hell. Used with the.
b. A miserable or depressing place or situation.
c. pits Slang The worst. Used with the: "New York politics are the pits" (Washington Star).
11. Football The middle areas of the defensive and offensive lines.
v. pit·ted, pit·ting, pits
v.tr.
1. To mark with cavities, depressions, or scars: a surface pitted with craters.
2. To set in direct opposition or competition: a war that pitted brother against brother.
3. To place, bury, or store in a pit.
v.intr.
1. To become marked with pits.
2. To retain an impression after being indented. Used of the skin.
3. To stop at a refueling area during an auto race.

[Middle English, from Old English pytt, ultimately from Latin puteus, well; see pau- in Indo-European roots.]

pit 2

 (pĭt)
n.
The single central kernel or stone of certain fruits, such as a peach or cherry.
tr.v. pit·ted, pit·ting, pits
To extract the pit from (a fruit).

[Dutch, from Middle Dutch.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pitting - the formation of small pits in a surface as a consequence of corrosion
corroding, corrosion, erosion - erosion by chemical action
References in periodicals archive ?
Analysis of pipeline failure causes also shows that other often reasons causing pipe damage, especially, through-wall defect formation, are pitting corrosion [9, 21], damage caused by cyclic loading where corrosion-fatigue mechanism appears (usually in welding zone) [21, 24,28], and under particular conditions - hydrogen absorption (hydrogen brittleness) [29-31] and microbiological corrosion [9, 32, 33].
This event will feature Clariant's Jin Huang, Subsurface Account Manager, Integrity, presenting, "Study of Pitting Corrosion of Corrosion Resistant Alloys at Extreme High Temperature Using Electrochemical Measurements.
Selective corrosion grows in service at a faster rate than adjacent pitting corrosion.
This technique has already provided very interesting information concerning the initiation of pitting corrosion of various metal samples, (11-14) the growth of passive films on metals, (15) the characterization of thin inhibitor films on reactive metals, (16) and galvanic corrosion of iron zinc cells.
The higher values of the corrosion rate for pure Al in alkaline solutions encouraged the desire to study the effect of sodium hydroxide concentrations on the pitting corrosion of aluminum.
High positive potentials were avoided during the experiments because intensive pitting corrosion appeared in some solutions at high potentials.
It can be used to line new tanks and repair pitting corrosion damage or as a reinforced lining for refurbished tank bottoms.
In other cases, pitting corrosion occurs after a few years of storage in low quality water, which lead to the release of radioactivity to a storage pool [6, 7].
Localized corrosion attack in an otherwise resistant surface produces pitting corrosion.
For example, pumps in chemical industries subjected to aggressive environments and bearings and gears exposed to marine environment such as naval aircraft which suffer from pitting corrosion due to localized attack by chloride ions.
Pitting corrosion is a localized form of corrosion where the bulk material may remain passive, but pits or holes in the metal surface suffer localized and rapid surface degradation (FIGURE 3).
Use of the KCR inhibitor caused a repeated lowering of passive current density as well as complete protection from pitting corrosion.