2020
DOI: 10.52687/2582-1474/212
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HVOF Sprayed Mullite Coatings for Use In Extreme Environments

Abstract: Products used in industry and marine applications are exposed to extreme environments like high heat, humidity, acidic or alkaline or hyper saline environment, UV and IR radiation. Metals with good corrosion and oxidation resistance may be used but are restricted to Ni and Cr alloys, titanium and super alloys etc., which are costly and have their limitations. Hence ceramic coatings on low cost metals may be an answer to this problem. Ceramics are inherently chemically inert, high temperature resistant, corrosi… Show more

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Cited by 3 publications
(2 citation statements)
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“…A significant difference in these parameters can be observed between the sprayed materials and the bulks, with the 316L bulk as the noblest material, −179.80 mV, and the worst behavior for C-steel bulk, −753.97 mV. These results are consonant with those presented in the literature, −239 mV [16] and −260 mV [57] for 316L bulk and −726 mV [46] and −719 mV [58] for C-steel. Regarding the sprayed materials, their results were lower than the 316L bulk stainless steel ones and higher than the C-steel bulk ones.…”
Section: Corrosion Behaviorsupporting
confidence: 88%
“…A significant difference in these parameters can be observed between the sprayed materials and the bulks, with the 316L bulk as the noblest material, −179.80 mV, and the worst behavior for C-steel bulk, −753.97 mV. These results are consonant with those presented in the literature, −239 mV [16] and −260 mV [57] for 316L bulk and −726 mV [46] and −719 mV [58] for C-steel. Regarding the sprayed materials, their results were lower than the 316L bulk stainless steel ones and higher than the C-steel bulk ones.…”
Section: Corrosion Behaviorsupporting
confidence: 88%
“…In this context, ample research has been reported by researchers to date, which confirms that the developed high-velocity oxy-fuel-sprayed coatings are comparatively thicker and denser along with superior interfacial bonding between the coating and substrate because of the high enthalpy and velocity of the spraying flame. A thicker deposition normally leads to an improvement in the corrosion, microstructural, mechanical as well as tribological behavior of the substrates [16][17][18][19][20][21][22].…”
Section: Introductionmentioning
confidence: 99%