Thermal shock and sulfuric acid corrosion behavior of enamel–nano‐Ni composite/enamel–nano‐nickel composite coating | Zendy

Chen Ken | Zendy; Chen Minghui | Zendy; Yi Aihua | Zendy; Li Kang | Zendy; Zhu Wen | Zendy; Liao Zhongmiao | Zendy; Zhu Shenglong | Zendy; Wang Fuhui | Zendy

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Thermal shock and sulfuric acid corrosion behavior of enamel–nano‐Ni composite/enamel–nano‐nickel composite coating

Author(s) -

Chen Ken,

Chen Minghui,

Yi Aihua,

Li Kang,

Zhu Wen,

Liao Zhongmiao,

Zhu Shenglong,

Wang Fuhui

Publication year - 2020

Publication title -

international journal of applied glass science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.383

H-Index - 34

eISSN - 2041-1294

pISSN - 2041-1286

DOI - 10.1111/ijag.15513

Subject(s) - materials science , enamel paint , corrosion , sulfuric acid , nanocomposite , composite number , coating , spall , thermal shock , composite material , nickel , thermal stability , nano , conversion coating , metallurgy , chemical engineering , engineering

Dense and well‐adherent enamel–nano‐Ni composite/enamel–nano‐nickel composite coatings were prepared on 304 steel. Their thermal shock (TS) resistance at 400°C as well as the chemical stability in sulfuric acid solution were investigated, and compared with pure enamel coatings. Results indicated that the nanocomposite coatings with 5 wt% of Ni particles exhibited the best resistance to TS. Almost no spalling of the coating occurs after 50 cycles of TS at 400°C. They also provided enough protective effect to the substrates from sulfuric acid corrosion. After 7 days of corrosion, the weight loss of Ni‐5 enamel coating was only 1.107 mg/cm 2 .

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