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/cm²_.

中文翻译：

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搪瓷-纳米-Ni复合材料/搪瓷-纳米-镍复合涂层的热冲击和硫酸腐蚀行为

在304钢上制备了致密且粘附良好的搪瓷-纳米镍复合材料/搪瓷-纳米镍复合材料涂层。研究了它们在400°C时的抗热震性（TS）以及在硫酸溶液中的化学稳定性，并与纯瓷漆进行了比较。结果表明，具有5wt％的Ni颗粒的纳米复合涂层表现出对TS的最佳耐受性。在400°C下经过50次TS循环后，涂层几乎没有剥落。它们还为硫酸腐蚀的基材提供了足够的保护作用。腐蚀7天后，Ni-5搪瓷涂层的重量损失仅为1.107 mg / cm ² _。