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D

Dezincification

A type of corrosion that occurs primarily in copper-zinc alloys containing more than 20% zinc. Brass is a good example of this.

In this process, which can lead to rapid destruction of the material, copper that has initially gone into solution with the zinc redeposits on the brass, forming a spongy mass. This happens particularly frequently when brass with a high copper content (> 85% Cu) is in contact with water containing high levels of O2 or CO2. Dezincification then occurs in stagnant solutions.

  • Evaporation of zinc from brass at high temperatures
  • Detachment of defective zinc layers from galvanized steel.

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WIOTEC® Ense GmbH & Co. KG
Auf den Geeren 9-11
59469 Ense-Höingen, Germany

WIOTEC® Arnsberg GmbH & Co. KG
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59759 Arnsberg, Germany

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From metal to precious metal
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