Metallurgical bond between magnesium AZ91 alloy and aluminium plasma sprayed coatings

Result code in 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>
Alternative codes found
RIV/61389021:_____/15:00450807
Result on the web
<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>

Result language
angličtina
Original language name
Metallurgical bond between magnesium AZ91 alloy and aluminium plasma sprayed coatings
Original language description
"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."
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JK - Corrosion and material surfaces
OECD FORD branch
—

Project
<a href="/en/project/GP14-31538P" target="_blank" >GP14-31538P: Evolution of bonding interface during and after plasma spraying of metallic materials on magnesium and magnesium alloy</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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