Improving corrosion stability of Zn-Al-Mg by alloying for protection of car bodies

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22350%2F16%3A43902753" target="_blank" >RIV/60461373:22350/16:43902753 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/16:43902753

Result on the web

<a href="http://dx.doi.org/10.1016/j.surfcoat.2016.03.062" target="_blank" >http://dx.doi.org/10.1016/j.surfcoat.2016.03.062</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfcoat.2016.03.062" target="_blank" >10.1016/j.surfcoat.2016.03.062</a>

Result language

angličtina

Original language name

Improving corrosion stability of Zn-Al-Mg by alloying for protection of car bodies

Original language description

Aluminium and magnesium are known for their ability to improve corrosion performance of zinc coatings used for steel protection in automotive applications. To investigate the inhibiting properties of other elements, series of model Zn-X, Zn-Al-X, Zn-Mg-X and Zn-Al-Mg-X alloys containing 0.2-2 wt% of titanium, mischmetal (mixture of cerium and other lanthanides), zirconium, molybdenum, chromium, boron, gallium, indium, copper, nickel, calcium, manganese and silicon were prepared and their corrosion performance in a cyclic accelerated test and at a marine field site and the ability to provide galvanic protection to steel in defects were characterized. On openly exposed surfaces, none of the investigated elements showed stronger inhibiting effect on atmospheric corrosion than AI and Mg. When exposed to marine climate, it was beneficial to combine Al and Mg. The corrosion stability of Zn-Al-Mg was further improved by addition of a fourth element. Quaternary Zn-Al-Mg-X alloys outperformed binary Zn-X and ternary Zn-Al-X and Zn-Mg-X alloys. In average, mass loss was 4 fold higher in confined zones simulating hem flanges. Strong inhibition with Mg and detrimental effects of Al on corrosion in confined zones was found. Several quaternary Zn-Al-Mg-X alloys with improved corrosion stability in both open and confined configurations were identified.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JK - Corrosion and material surfaces

OECD FORD branch

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Project

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Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2016

Confidentiality

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

Name of the periodical

Surface and Coatings Technology

ISSN

0257-8972

e-ISSN

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Volume of the periodical

306

Issue of the periodical within the volume

25 November 2016

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

439-447

UT code for WoS article

000387631300009

EID of the result in the Scopus database

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