PEO of AZ31 Mg Alloy: Effect of ElectrolytenPhosphate Content and Current Density

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00534789" target="_blank" >RIV/68081723:_____/20:00534789 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2075-4701/10/11/1521" target="_blank" >https://www.mdpi.com/2075-4701/10/11/1521</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met10111521" target="_blank" >10.3390/met10111521</a>

Jazyk výsledku

angličtina

Název v původním jazyce

PEO of AZ31 Mg Alloy: Effect of ElectrolytenPhosphate Content and Current Density

Popis výsledku v původním jazyce

In this work, the quality of coatings prepared by plasma electrolytic oxidation (PEO)non an AZ31 magnesium alloy were evaluated. This was done by studying the effects of thenchemical composition of phosphate-based process electrolytes in combination with different appliedncurrent densities on coating thickness, porosity, micro-cracking and corrosion resistance in 0.1 MnNaCl. Both processing parameters were studied in four different levels. Mid-term corrosionnresistance in 0.1 M NaCl was examined by electrochemical impedance spectroscopy and basednon this, corrosion mechanisms were hypothesized. Results of performed experiments showednthat the chosen processing parameters and electrolyte composition significantly influenced thenmorphology and corrosion performance of the prepared PEO coatings. The PEO coating prepared innan electrolyte with 12 g/L Na3PO4·12H2O and using an applied current density 0.05 A/cm2nreachednthe highest value of polarization resistance. This was more than 11 times higher when compared tonthe uncoated counterpart.

Název v anglickém jazyce

PEO of AZ31 Mg Alloy: Effect of ElectrolytenPhosphate Content and Current Density

Popis výsledku anglicky

In this work, the quality of coatings prepared by plasma electrolytic oxidation (PEO)non an AZ31 magnesium alloy were evaluated. This was done by studying the effects of thenchemical composition of phosphate-based process electrolytes in combination with different appliedncurrent densities on coating thickness, porosity, micro-cracking and corrosion resistance in 0.1 MnNaCl. Both processing parameters were studied in four different levels. Mid-term corrosionnresistance in 0.1 M NaCl was examined by electrochemical impedance spectroscopy and basednon this, corrosion mechanisms were hypothesized. Results of performed experiments showednthat the chosen processing parameters and electrolyte composition significantly influenced thenmorphology and corrosion performance of the prepared PEO coatings. The PEO coating prepared innan electrolyte with 12 g/L Na3PO4·12H2O and using an applied current density 0.05 A/cm2nreachednthe highest value of polarization resistance. This was more than 11 times higher when compared tonthe uncoated counterpart.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

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 periodika

Metals

ISSN

2075-4701

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

23

Strana od-do

1521

Kód UT WoS článku

000593815300001

EID výsledku v databázi Scopus

2-s2.0-85096193913