On the effect of multiphase microstructure of ZnAlMg substrate on the Tibased activation and phosphate conversion coating distribution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43919403" target="_blank" >RIV/60461373:22310/19:43919403 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22350/19:43919403

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0257897219304219" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0257897219304219</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfcoat.2019.04.050" target="_blank" >10.1016/j.surfcoat.2019.04.050</a>

Result language

angličtina

Original language name

On the effect of multiphase microstructure of ZnAlMg substrate on the Tibased activation and phosphate conversion coating distribution

Original language description

&quot;The impact of multiphase microstructure of ZnAlMg coatings on the homogeneity of the surface activation and phosphate conversion coating (PCC) is considered. Three ZnAlMg coatings and three pure phases (Zn, Zn2Mg and ZnAl) relevant for these coatings were characterized after Ti-based activation and after the complete PCC procedure. Highly alloyed ZnAl and Zn2Mg were more sensitive to the ageing of the activator bath than Zn. X-ray photoelectron spectroscopy demonstrated that Ti concentration on the surface after Ti containing activation step decreased in order Zn &gt; Zn2Mg≫ZnAl and that TieO group is chemically bonded to the Zn surface while for the alloyed phases mainly TiO2 was formed. Scanning electron microscopy demonstrated that for the coatings with a fine microstructure the complete covering by PCC was achieved in standard conditions despite the differences in the activation state of different phases and different kinetics of PCC formation. This was explained by the hypothesis that the variance in the reactivity of different phases forming the coating can be leveled by the phosphate crystal size, exceeding the substrate microstructure inhomogeneity.&quot;

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Name of the periodical

Srface and Coatings Technology

ISSN

0257-8972

e-ISSN

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Volume of the periodical

369

Issue of the periodical within the volume

April

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

165-174

UT code for WoS article

000469157900015

EID of the result in the Scopus database

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