Scholarlink

Abstract <p>Aluminum oxide (Al<sub>2</sub>O<sub>3</sub>) exhibits robust self-healing properties and chemical stability, along with superior hydrogen resistance and corrosion resistance. Additionally, it can serve as a hard particulate component in various coatings. In this study, an amorphous Ni–P coating doped with Al<sub>2</sub>O<sub>3</sub> nanoparticles was applied to a Q235 steel substrate using electrodeposition technique. The investigation focused on the influence of nano-Al<sub>2</sub>O<sub>3</sub> dosage on the properties of the Ni–P composite plating. The findings indicate that the inclusion of Al<sub>2</sub>O<sub>3</sub> nanoparticles significantly enhances the corrosion resistance, hydrogen resistance and wear resistance of the Ni–P coating. Specifically, for the Ni–P coating with the Al<sub>2</sub>O<sub>3</sub> addition of 3 g/L (Ni–P–Al<sub>2</sub>O<sub>3</sub>-3 coating), the impedance value increased by 64.4%, while the corrosion current decreased by 58.7%. Furthermore, the Ni–P–Al<sub>2</sub>O<sub>3</sub>-3 coating demonstrated an extended hydrogen penetration time and a reduction in hydrogen diffusion coefficient by an order of magnitude compared with pure Ni–P coating.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Corrosion Resistance and Hydrogen Barrier Resistance of Nano-Al2O3 Doped Amorphous Ni–P Coating

  • 期刊论文

  • 发表日期：

    2025年4月1日

查看全文
  • Huang Zhi,
  • Li Tianle,
  • Yao Jian,
  • Zhao Zhihao,
  • Li Chunling,
  • Liu Man,
  • Sun Yinjuan,
  • Shao Zhicui

摘要

Abstract

Aluminum oxide (Al2O3) exhibits robust self-healing properties and chemical stability, along with superior hydrogen resistance and corrosion resistance. Additionally, it can serve as a hard particulate component in various coatings. In this study, an amorphous Ni–P coating doped with Al2O3 nanoparticles was applied to a Q235 steel substrate using electrodeposition technique. The investigation focused on the influence of nano-Al2O3 dosage on the properties of the Ni–P composite plating. The findings indicate that the inclusion of Al2O3 nanoparticles significantly enhances the corrosion resistance, hydrogen resistance and wear resistance of the Ni–P coating. Specifically, for the Ni–P coating with the Al2O3 addition of 3 g/L (Ni–P–Al2O3-3 coating), the impedance value increased by 64.4%, while the corrosion current decreased by 58.7%. Furthermore, the Ni–P–Al2O3-3 coating demonstrated an extended hydrogen penetration time and a reduction in hydrogen diffusion coefficient by an order of magnitude compared with pure Ni–P coating.