selective corrosion - meaning and definition. What is selective corrosion
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What (who) is selective corrosion - definition

Graphitic corrosion; Dezincification; Dealuminification; Dealloying; Dezincification resistant brass; Dezincification Resistant Brass; Selective corrosion
  • A typical nanoporous microstructure after dealloying (of an AgAl alloy).
  • Selective corrosion on cast iron. Magnification 100x
  • Selective corrosion on cast iron. Magnification 500x

Selective leaching         
Selective leaching, also called dealloying, demetalification, parting and selective corrosion, is a corrosion type in some solid solution alloys, when in suitable conditions a component of the alloys is preferentially leached from the initially homogenous material. The less noble metal is removed from the alloy by a microscopic-scale galvanic corrosion mechanism.
Dezincification         
·noun The act or process of freeing from zinc; also, the condition resulting from the removal of zinc.
Microbial corrosion         
CORROSION CAUSED OR PROMOTED BY MICROORGANISMS
Microbially influenced corrosion
Microbial corrosion, also called microbiologically influenced corrosion (MIC), microbially induced corrosion (MIC) or biocorrosion, is "corrosion affected by the presence or activity (or both) of microorganisms in biofilms on the surface of the corroding material." This corroding material can be either a metal (such as steel or aluminum alloys) or a nonmetal (such as concrete or glass).

Wikipedia

Selective leaching

In metallurgy, selective leaching, also called dealloying, demetalification, parting and selective corrosion, is a corrosion type in some solid solution alloys, when in suitable conditions a component of the alloys is preferentially leached from the initially homogenous material. The less noble metal is removed from the alloy by a microscopic-scale galvanic corrosion mechanism. The most susceptible alloys are the ones containing metals with high distance between each other in the galvanic series, e.g. copper and zinc in brass. The elements most typically undergoing selective removal are zinc, aluminium, iron, cobalt, chromium, and others.