Preparation and property of sol-enhanced Ni–B–TiO2 nano-composite coatings

Yuxin Wang, Shu Jen Wang, Xin Shu, Wei Gao*, Wei Lu, Biao Yan

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

67 Citations (Scopus)

Abstract

Ni–B–TiO2 nano-composite coatings were fabricated on mild steel by using a novel sol-enhanced method. It was found that highly dispersed Ni–B–TiO2 nano-composite coatings can be directly in-situ electrodeposited by adding a small quantity of TiO2 sol solution and (DMAB) into the basic watts solution. The mechanical property of sol-enhanced Ni–B–TiO2 coatings was significantly improved compared with that of Ni and Ni–B coatings. The microhardness of the sol-enhanced Ni–B–12.5 mL/L TiO2 coating was ∼1061 HV200 compared to ∼677 HV200 of Ni–B coating and ∼350 HV200 of Ni coating. Meanwhile, the wear resistance has also been improved remarkably. The corrosion resistance of sol-enhanced Ni–B–12.5 mL/L TiO2 coating was decreased compared with that of pure Ni coating but significantly better than that of Ni–B coating.

Original languageEnglish
Pages (from-to)472-478
Number of pages7
JournalJournal of Alloys and Compounds
Volume617
DOIs
Publication statusPublished - 25 Dec 2014

User-Defined Keywords

  • Corrosion resistance
  • Mechanical property
  • Nano-composite coatings
  • Ni-B
  • Sol-enhanced method

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