Study on the cross-sectional microstructure of a thin ceramic coating on stainless steel surface fabricated by the application and calcination of an aqueous clay mineral paste

Tanaike, Osamu; Noguchi, Yukinori; Hayashi, Shinya; Sugai, Ichiro; Niwa, Eiji; Iijima, Takashi; Ebina, Takeo

doi:10.1016/j.clay.2020.105665

Applied Clay Science

2020

DOI: 10.1016/j.clay.2020.105665

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Study on the cross-sectional microstructure of a thin ceramic coating on stainless steel surface fabricated by the application and calcination of an aqueous clay mineral paste

Osamu Tanaike

Yukinori Noguchi²,

Shinya Hayashi³

et al.

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Cited by 3 publications

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“…The choice and design of reinforcement powders are of critical importance for laser cladding modified materials surface [18,19]. Ceramic materials have high microhardness, good wear resistance, corrosion resistance and thermal stability, so ceramic materials have been widely used in many advanced technological applications, particularly in laser cladding [20][21][22].…”

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Microstructure, microhardness and corrosion resistance of laser cladding Al2O3@Ni composite coating on 304 stainless steel

2021

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The microstructure, microhardness and corrosion resistance of laser cladding Al 2 O 3 @Ni composite coating were investigated. The Al 2 O 3 @Ni core-shell metalceramic powders synthesized via electroless plating method were used as laser cladding materials. According to the results of scanning electron microscopy and energy dispersive spectrometer, the microstructure of the Al 2 O 3 @Ni composite coating gradually transitioned from columnar crystal to cellular crystal and equiaxed crystal along the bottom to the surface. Furthermore, the Ni particles and Al 2 O 3 particles separated when laser heating, then formed Ni metallurgical bonding layer and Al 2 O 3 ceramic layer, respectively. The microhardness of Al 2 O 3 @Ni composite coating was up to 917.0 HV, which was about 5.7 times that of 304 stainless steel. In addition, immersion and electrochemical tests revealed that Al 2 O 3 @Ni composite coating exhibited excellent corrosion resistance compared with 304 stainless steel. The corrosion current density of the Al 2 O 3 @Ni composite coating (36.493 lA cm -2 ) was about 67.0% lower than that of 304 stainless steel (110.592 lA cm -2 ). Meanwhile, the corrosion mechanism of Al 2 O 3 @Ni composite coating was revealed. Dense Al 2 O 3 @Ni composite coating can inhibit the penetration of Cland H ? , making the corrosion reaction difficult to occur. Instruction 304 stainless steel is extensively used in chemical plants, food processing and mechanical engineering due to a combination of excellent corrosion resistance, good processing performance and low cost [1, 2]. In most corrosive conditions, 304 stainless steel proves excellent corrosion resistance, because passive film forms on the surface, which can provide important protective properties [3]. However, many

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Microstructure, microhardness and corrosion resistance of laser cladding Al2O3@Ni composite coating on 304 stainless steel

2021

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Preparation and characterization of oxidation-resistant black glass (SiCO) coatings obtained by hydrosilylation of polysiloxanes

Nyczyk-Malinowska

Niemiec

Smoła

et al. 2021

Surface and Coatings Technology

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Surface modification strategies of 304 austenitic stainless steel plate with different micromorphology and composition for improved mechanical interlocking and chemical bonding in metal–epoxy joints

Wang,

Liu,

2024

Journal of Adhesion Science and Technology

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Study on the cross-sectional microstructure of a thin ceramic coating on stainless steel surface fabricated by the application and calcination of an aqueous clay mineral paste

Cited by 3 publications

References 22 publications

Microstructure, microhardness and corrosion resistance of laser cladding Al2O3@Ni composite coating on 304 stainless steel

Microstructure, microhardness and corrosion resistance of laser cladding Al2O3@Ni composite coating on 304 stainless steel

Preparation and characterization of oxidation-resistant black glass (SiCO) coatings obtained by hydrosilylation of polysiloxanes

Surface modification strategies of 304 austenitic stainless steel plate with different micromorphology and composition for improved mechanical interlocking and chemical bonding in metal–epoxy joints

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