COMPARISON OF DIFFERENT AGENTS FOR SURFACE TREATMENT OF ALUMINIUM BYELECTROCHEMICAL OXIDATION

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F20%3AN0000103" target="_blank" >RIV/00010669:_____/20:N0000103 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/metal/2020" target="_blank" >https://www.confer.cz/metal/2020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2020.3563" target="_blank" >10.37904/metal.2020.3563</a>

Jazyk výsledku

angličtina

Název v původním jazyce

COMPARISON OF DIFFERENT AGENTS FOR SURFACE TREATMENT OF ALUMINIUM BYELECTROCHEMICAL OXIDATION

Popis výsledku v původním jazyce

The aim of this study is to compare the corrosion resistance of anodic oxidation coatings on Al2024 alloy. Due to its composition with a high content of alloying elements (mainly Cu), anodization of this alloy is one of the difficult ones compared to most other alloys or pure aluminium. In this study, the Cr6+ free baths were used for anodic oxidation of the Al 2024 alloy because of high toxicity of Cr6+ based baths, which are legislatively restricted nowadays. One of the possible ways is the use of mixtures of organic and inorganic acids and various additives (such as e.g. tartaric, citric, glycolic, malonic acid etc.). It is also possible to use commercial products as additives for sulfuric acid anodization (SAA). In this study, the samples were anodized in four types of anodizing baths and subsequently sealed in boiling water. The surface and metallographic specimen were observed by optical microscope and scanning electron microscope (SEM). The thickness was measured using the eddy current method. The anti-corrosion properties of the layers were verified using the accelerated Machu test.

Název v anglickém jazyce

COMPARISON OF DIFFERENT AGENTS FOR SURFACE TREATMENT OF ALUMINIUM BYELECTROCHEMICAL OXIDATION

Popis výsledku anglicky

The aim of this study is to compare the corrosion resistance of anodic oxidation coatings on Al2024 alloy. Due to its composition with a high content of alloying elements (mainly Cu), anodization of this alloy is one of the difficult ones compared to most other alloys or pure aluminium. In this study, the Cr6+ free baths were used for anodic oxidation of the Al 2024 alloy because of high toxicity of Cr6+ based baths, which are legislatively restricted nowadays. One of the possible ways is the use of mixtures of organic and inorganic acids and various additives (such as e.g. tartaric, citric, glycolic, malonic acid etc.). It is also possible to use commercial products as additives for sulfuric acid anodization (SAA). In this study, the samples were anodized in four types of anodizing baths and subsequently sealed in boiling water. The surface and metallographic specimen were observed by optical microscope and scanning electron microscope (SEM). The thickness was measured using the eddy current method. The anti-corrosion properties of the layers were verified using the accelerated Machu test.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

29th International Conference on Metallurgy and Materials

ISBN

978-80-87294-97-0

ISSN

2694-9296

e-ISSN

—

Počet stran výsledku

5

Strana od-do

853-858

Název nakladatele

Tanger Ltd.

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

20. 5. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—