Formation mechanism of gas phase in supersonic atmospheric plasma sprayed NiCr-Cr3C2 cermet coatings

Liu, Qing; Wang, Y.; Bai, Yu; Li, Z.D.; Tan, Guolong; Bao, Manyu; Li, X.J.; Zhan, Hongyi; Sun, Yiwen; Chong, Nanjing; Wang, R.J.; Ma, Y.S.

doi:10.1016/j.surfcoat.2020.126052

Cited by 15 publications

(1 citation statement)

References 43 publications

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“…There is a porous structure with a size of approximately 0.36 µm. Pores formed under non-equilibrium solidification form plenty of adsorbates, which exist on the substrate surface because of the low preheating temperature, and the low surface tension of droplets was caused by high droplet temperature [26,27]. Some pores consolidated in bigger pores with a size of ~2 µm in the areas with decreased gas solubility and cooling rate.…”

Section: Study Of the Tib 2 -Ag Coating Obtained By Electrical Explosionmentioning

confidence: 99%

Influence of Electron Beam Treatment on Structure and Phase Composition of TiB2–Ag Coating Deposited by Electrical Explosion Spraying

Filyakov,

Pochetukha,

Romanov

et al. 2023

Coatings

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Due to many factors, the electrical explosion spraying process is not stable, which directly causes unstable coating quality and structure. Electron beam treatment may be used to improve the surface and modified structure of coatings sprayed by electrical explosions. In this study, a new TiB2–Ag metal matrix composite coating was deposited by electrical explosion spraying and modified by electron beam treatment. The prepared coatings were characterized by surface macro- and microanalysis, XDR, cross-section SEM, and TEM. The composition of the spray-coating phase differs from sample to sample. The electron beam treatment normalized the phase composition. Ag TiB2 B2O became the main phase in the modified coating. Increasing the pulse energy density and duration leads to a reduction in the low-melting Ag phase and the formation of copper contact phases due to heating and melting of the copper substrate by excess electron beam energy. The coating structure consists of a silver matrix and TiB2 inclusions. The electron beam treatment did not affect the structure; however, the microstructure of the coating transformed into a cellular crystallization structure. The silver matrix nanostructure was transformed into a nanocrystalline structure with an average crystal size ranging from tens to hundreds of nanometers.

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Section: Study Of the Tib 2 -Ag Coating Obtained By Electrical Explosionmentioning

confidence: 99%

Influence of Electron Beam Treatment on Structure and Phase Composition of TiB2–Ag Coating Deposited by Electrical Explosion Spraying

Filyakov,

Pochetukha,

Romanov

et al. 2023

Coatings

View full text Add to dashboard Cite

show abstract

Impact of Electron Beam Treatment on the Structure and Phase Composition of TiB2 – Ag Coating Deposited by Electrical Explosion Spraying on a Copper Substrate

Filyakov,

Pochetukha,

Romanov

et al. 2024

Met Sci Heat Treat

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Influence of Heat Treatment on Microstructure and Properties of High-Velocity Arc-Sprayed Fe-Based-Al2O3-B4C Coating

Kang

Ndumia

et al. 2022

J. of Materi Eng and Perform

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Formation mechanism of gas phase in supersonic atmospheric plasma sprayed NiCr-Cr3C2 cermet coatings

Cited by 15 publications

References 43 publications

Influence of Electron Beam Treatment on Structure and Phase Composition of TiB2–Ag Coating Deposited by Electrical Explosion Spraying

Influence of Electron Beam Treatment on Structure and Phase Composition of TiB2–Ag Coating Deposited by Electrical Explosion Spraying

Impact of Electron Beam Treatment on the Structure and Phase Composition of TiB2 – Ag Coating Deposited by Electrical Explosion Spraying on a Copper Substrate

Influence of Heat Treatment on Microstructure and Properties of High-Velocity Arc-Sprayed Fe-Based-Al2O3-B4C Coating

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