Preparation and properties of plasma sprayed NiAl10 and NiAl40 coatings on AZ91 substrate.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F17%3A00474381" target="_blank" >RIV/61389021:_____/17:00474381 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/17:43914192

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.surfcoat.2017.03.064" target="_blank" >http://dx.doi.org/10.1016/j.surfcoat.2017.03.064</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfcoat.2017.03.064" target="_blank" >10.1016/j.surfcoat.2017.03.064</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Preparation and properties of plasma sprayed NiAl10 and NiAl40 coatings on AZ91 substrate.

Popis výsledku v původním jazyce

Magnesium alloys are, due to high specific strength and stiffness, materials suitable for lightweight applications in automotive and aeronautical industries. Very poor corrosion resistance of magnesium and magnesium alloys significantly limits their wide utilization. Magnesium alloys are very susceptible to galvanic corrosion that can result in serious pitting corrosion, particularly in wet and salty environment. Magnesium and its alloys can benprotected by formation of protective surface layerswhich can be achieved by plasma spraying capable of preparing metal and/or ceramic coatings. In this work, plasma coatings of NiAl10 and NiAl40 on AZ91 magnesium alloy substrate were prepared by the hybrid plasma spraying system WSP®-H 500. Present results show a significant effect of the preheat temperature of the AZ91 substrate during plasma spraying on development of a diffusionnbonding due to the formation of sub-layer composed of Mg3AlNi2, Al12Mg17 phases and of Mg and Al solid solutions. The plasma sprayed coatings were observed by scanning electron microscope with elements point analysis and by X-ray phase analysis. The mechanical properties of prepared coatings were evaluated by adhesion tests.nThe corrosion resistance of prepared coatingswas evaluated using themethod of potentiodynamicmeasurements performed in the 0.5mol·l-1NaCl solutionwhile the long-termcorrosion resistancewas assessed in condensation chamber in wet air atmosphere at the temperature of 35 °C. Both the tests showed significant effect of present sub-layers on resulting corrosion resistance

Název v anglickém jazyce

Preparation and properties of plasma sprayed NiAl10 and NiAl40 coatings on AZ91 substrate.

Popis výsledku anglicky

Magnesium alloys are, due to high specific strength and stiffness, materials suitable for lightweight applications in automotive and aeronautical industries. Very poor corrosion resistance of magnesium and magnesium alloys significantly limits their wide utilization. Magnesium alloys are very susceptible to galvanic corrosion that can result in serious pitting corrosion, particularly in wet and salty environment. Magnesium and its alloys can benprotected by formation of protective surface layerswhich can be achieved by plasma spraying capable of preparing metal and/or ceramic coatings. In this work, plasma coatings of NiAl10 and NiAl40 on AZ91 magnesium alloy substrate were prepared by the hybrid plasma spraying system WSP®-H 500. Present results show a significant effect of the preheat temperature of the AZ91 substrate during plasma spraying on development of a diffusionnbonding due to the formation of sub-layer composed of Mg3AlNi2, Al12Mg17 phases and of Mg and Al solid solutions. The plasma sprayed coatings were observed by scanning electron microscope with elements point analysis and by X-ray phase analysis. The mechanical properties of prepared coatings were evaluated by adhesion tests.nThe corrosion resistance of prepared coatingswas evaluated using themethod of potentiodynamicmeasurements performed in the 0.5mol·l-1NaCl solutionwhile the long-termcorrosion resistancewas assessed in condensation chamber in wet air atmosphere at the temperature of 35 °C. Both the tests showed significant effect of present sub-layers on resulting corrosion resistance

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Surface and Coatings Technology

ISSN

0257-8972

e-ISSN

—

Svazek periodika

319

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

145-154

Kód UT WoS článku

000402357300018

EID výsledku v databázi Scopus

2-s2.0-85017454998