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Brandl-Risi, Bettina; Brandstetter, Gabriele; Kolesch, Doris; Kotte, Andreas; Kreuder, Ariedemann; Balme, Christopher; Sting, Wolfgang; Fischer‐Lichte, Erika; Warstat, Matthias; Heeg, Günther; Sollich, Robert; Schreiber, Daniel K.

doi:10.1007/978-3-476-05357-2_18

Cited by 1 publication

(1 citation statement)

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“…The missing lead is compensated by the formation of a silicon rich phase that also improves machining properties. CuZn21SiP alloy also shows good dezincification resistance according to Brandl et al [15] in dezincification tests after DIN EN ISO 6509. In comparison to the well-known dezincification resistant brasses, the new alloy shows a completely different microstructure due to the high silicon content and uses phosphorous as an alloying element.…”

Section: Introductionmentioning

confidence: 88%

Corrosion mechanism of CuZn21Si3P in aggressive tap water

Seuss

Gaag

Virtanen

2016

Materials & Corrosion

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Exposure tests of CuZn21Si3P in drinking water and dezincification test solution have revealed good dezincification resistance of the lead‐free brass CuZn21Si3P. To clarify the underlying mechanism, electrochemical measurements in tap water and surface characterisation of samples exposed to drinking water were performed. Open circuit potential measurements, electrochemical impedance spectroscopy and micro‐electrochemical polarisation curves, as well as light‐microscopy, X‐ray diffraction and Auger electron spectroscopy measurements reveal details on the corrosion behaviour and scale formation. Microstructural effects, electrochemical behaviour of the separate phases, and the role of the alloyed phosphorous in the dezincification process could be elucidated. Conclusively, a corrosion mechanism is proposed, that unites and explains the findings of long‐term exposure.

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Section: Introductionmentioning

confidence: 88%