a state of deterioration in metals caused by oxidation or chemical action
corrosion, corroding, erosion(noun)
erosion by chemical action
The act of corroding or the condition so produced.
A substance (such as rust) so formed.
Erosion by chemical action, especially oxidation.
The gradual destruction or undermining of something.
Origin: From corrosion, or its source, corrosionem, accusative singular of corrosio, from corrodo.
the action or effect of corrosive agents, or the process of corrosive change; as, the rusting of iron is a variety of corrosion
Origin: [LL. corrosio: cf. F. corrosion. See Corrode.]
Corrosion is the gradual destruction of materials, by chemical reaction with its environment. In the most common use of the word, this means electrochemical oxidation of metals in reaction with an oxidant such as oxygen. Rusting, the formation of iron oxides, is a well-known example of electrochemical corrosion. This type of damage typically produces oxide or salt of the original metal. Corrosion can also occur in materials other than metals, such as ceramics or polymers, although in this context, the term degradation is more common. Corrosion degrades the useful properties of materials and structures including strength, appearance and permeability to liquids and gases. Many structural alloys corrode merely from exposure to moisture in air, but the process can be strongly affected by exposure to certain substances. Corrosion can be concentrated locally to form a pit or crack, or it can extend across a wide area more or less uniformly corroding the surface. Because corrosion is a diffusion-controlled process, it occurs on exposed surfaces. As a result, methods to reduce the activity of the exposed surface, such as passivation and chromate conversion, can increase a material's corrosion resistance. However, some corrosion mechanisms are less visible and less predictable.
U.S. National Library of Medicine
The gradual destruction of a metal or alloy due to oxidation or action of a chemical agent. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The numerical value of corrosion in Chaldean Numerology is: 1
The numerical value of corrosion in Pythagorean Numerology is: 9
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