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The Corrosion Resistance of Hard Anodised EN AW 7075 T6 Alloy

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU143189" target="_blank" >RIV/00216305:26620/21:PU143189 - isvavai.cz</a>

  • Alternative codes found

    RIV/60162694:G43__/23:00558243

  • Result on the web

    <a href="https://iopscience.iop.org/article/10.1149/10501.0329ecst" target="_blank" >https://iopscience.iop.org/article/10.1149/10501.0329ecst</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1149/10501.0329ecst" target="_blank" >10.1149/10501.0329ecst</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The Corrosion Resistance of Hard Anodised EN AW 7075 T6 Alloy

  • Original language description

    In this paper, commercially cold-rolled and artificial aged EN AW 7075 T6 alloy has been used. To ensure increased corrosion resistance, surface hardness, scratching resistance, and aesthetic features, this aluminium alloy was subsequently hard anodised and hot-water sealed (AC-A). The hard anodizing and sealing process increased surface hardness up to 304 13 HV 1 from an initial surface hardness of 194 3 HV 1. Also, the microhardness of the anodised layer and bulk material has been documented. Scanning electron microscopy (SEM) was used for microstructure and trapped precipitates investigation in the 42.9 1.4 thick formed anodised layer investigation. The T6 treated (AC) and hard anodised together with sealed (AC-A) EN AW 7075 alloy corrosion properties were evaluated using the anodic potentiodynamic polarisation tests (PPT) in a neutral 2.5% NaCl deaerated solution. The corrosion rate CR (mm/y) decreased approx. 39-times for the hard anodised and sealed EN AW 7075 alloy (AC-A), associated with the shift of the E corr (mV) to more positive values, degreased Icorr (µA) and increased Rp (Ohm) values compared to the artificial aged (AC) alloy. Additionally, the pitting was evaluated using laser confocal microscopy, and the pitting coefficient was also calculated.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20506 - Coating and films

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    ECS Transactions

  • ISBN

    9781607685395

  • ISSN

    1938-5862

  • e-ISSN

    1938-6737

  • Number of pages

    9

  • Pages from-to

    329-337

  • Publisher name

    Electrochemical Society

  • Place of publication

    neuveden

  • Event location

    Brno

  • Event date

    Aug 22, 2021

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article