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Anodizing — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Anodizing
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-09T12:11:18.477Z
SHA-256 of the archived text: f5fd2a6a666cad3e5d0f7388a5106e5b597d2ca11cfb99c565fb1baaafc6f1d1
Stable URL of this page: https://metraipolis.com/documento/dc_8e00a5e1b7dc

How to cite

Anodizing — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Anodizing (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_8e00a5e1b7dc (Metraipolis archive dc_8e00a5e1b7dc, sha256 f5fd2a6a666cad3e5d0f7388a5106e5b597d2ca11cfb99c565fb1baaafc6f1d1)

BibTeX

@misc{dc8e00a5e1b7dc,
  title = {Anodizing — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Anodizing},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_8e00a5e1b7dc; sha256 f5fd2a6a666cad3e5d0f7388a5106e5b597d2ca11cfb99c565fb1baaafc6f1d1},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Anodizing. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called anodizing because the part to be treated forms the anode electrode of an electrolytic cell. Anodizing increases resistance to corrosion and wear, and provides better adhesion for paint primers and glues than bare metal does. Anodic films can also be used for several cosmetic effects, either with thick porous coatings that can absorb dyes or with thin coatings whose color is due to thin film interference. Anodizing is also used to prevent galling of threaded components and to make dielectric films for electrolytic capacitors. Anodic films are most commonly applied to protect aluminium alloys, although processes also exist for titanium, zinc, magnesium, niobium, zirconium, hafnium, and tantalum. Anodizing changes the microscopic texture of the surface and the crystal structure of the metal near the surface. Thick coatings are normally porous, so a sealing process is often needed to achieve corrosion resistance. Anodized aluminium surfaces, for example, are harder than aluminium but have low to moderate wear resistance that can be improved with increasing thickness or by applying suitable sealing substances. Anodic films are generally much stronger and more adherent than most types of paint and metal plating, but also more brittle. This makes them less likely to crack and peel from ageing and wear, but more susceptible to cracking from thermal stress.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «Anodizing» — https://en.wikipedia.org/wiki/Anodizing
Wikidata Q567502: «processo di passivazione elettrolitica utilizzato per aumentare lo spessore dello strato di ossido naturale sulla superficie delle parti metalliche» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q567502
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Anodizing?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1383800174, consultata il 2026-11-09T12:07:05.702Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 5c519736217ac6d9d732b19705aac62f35b7ff19f15e197feef6df6835e04a6a