Metallurgical bond between magnesium AZ91 alloy and aluminium plasma sprayed coatings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43900533" target="_blank" >RIV/60461373:22310/15:43900533 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389021:_____/15:00450807

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.surfcoat.2015.10.032" target="_blank" >http://dx.doi.org/10.1016/j.surfcoat.2015.10.032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfcoat.2015.10.032" target="_blank" >10.1016/j.surfcoat.2015.10.032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Metallurgical bond between magnesium AZ91 alloy and aluminium plasma sprayed coatings

Popis výsledku v původním jazyce

"We report on creation of metallurgic bond between AZ91 magnesiumalloy and aluminium plasma sprayed coatings which has been so far observed only after additional surface treatments. High-enthalpy plasma spray process employing water-stabilized plasma torch was used to spray commercially pure aluminium and AlCr6Fe2 alloy and, thus, creating around 200 and 450 ?m thick coatings, respectively, with presence of aluminium oxides. For both coatings, metallurgical bond layers with thickness of around 100 ?mand notable for their eutecticmorphology were obtained. Analyses of microstructure, elemental and phase compositions revealed that the bond layer with the commercially pure aluminium coating is dominantly Al12Mg17 while the bonding with AlCr6Fe2 alloy comprises both Al12Mg17 and Al3Mg2. Despite the presence of porosity, the coatings' polarization resistance measurements showed increased values as compared with the bare substrate. Results of adhesion tests did not confirmthe deterioration of adhesion strength due to the presence of intermetallics in the bond, and more important factor was the phase composition and microstructure of the coatings. The thickness of the metallurgic bond can be thermally controlled via the substrate preheating and/or its thickness."

Název v anglickém jazyce

Metallurgical bond between magnesium AZ91 alloy and aluminium plasma sprayed coatings

Popis výsledku anglicky

"We report on creation of metallurgic bond between AZ91 magnesiumalloy and aluminium plasma sprayed coatings which has been so far observed only after additional surface treatments. High-enthalpy plasma spray process employing water-stabilized plasma torch was used to spray commercially pure aluminium and AlCr6Fe2 alloy and, thus, creating around 200 and 450 ?m thick coatings, respectively, with presence of aluminium oxides. For both coatings, metallurgical bond layers with thickness of around 100 ?mand notable for their eutecticmorphology were obtained. Analyses of microstructure, elemental and phase compositions revealed that the bond layer with the commercially pure aluminium coating is dominantly Al12Mg17 while the bonding with AlCr6Fe2 alloy comprises both Al12Mg17 and Al3Mg2. Despite the presence of porosity, the coatings' polarization resistance measurements showed increased values as compared with the bare substrate. Results of adhesion tests did not confirmthe deterioration of adhesion strength due to the presence of intermetallics in the bond, and more important factor was the phase composition and microstructure of the coatings. The thickness of the metallurgic bond can be thermally controlled via the substrate preheating and/or its thickness."

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

—

Projekt

<a href="/cs/project/GP14-31538P" target="_blank" >GP14-31538P: Vývoj chemických vazeb na rozhraní během a po plazmovém stříkání kovových materiálů na hořčík a slitiny hořčíku</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

SURFACE &amp; COATINGS TECHNOLOGY

ISSN

0257-8972

e-ISSN

—

Svazek periodika

282

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

163-170

Kód UT WoS článku

000365370200021

EID výsledku v databázi Scopus

—