JOURNAL ARTICLE

The effect of reduced graphene oxide concentration on the wear behaviour of reduced graphene oxide–nickel–boron (Ni–B–rGO) electroless coatings.

  • Published In: Materials Science & Technology, 2024, v. 40, n. 18. P. 1340 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Wetwet, Zainab; Mahboubi, Farzad; Mirhosseini, Seyyed Saber 3 of 3

Abstract

This article investigates the effects of varying concentrations of reduced graphene oxide (rGO) on the structural, mechanical, and tribological properties of electroless nickel-boron (ENiB) coatings deposited on AISI 4140 steel. The study found that increasing rGO concentration up to 20.5 mg/L transformed the coating structure from amorphous to semi-crystalline, significantly enhanced hardness (from 519 to 863 Hv), and reduced the specific wear rate (from 1.28 × 10⁻⁹ to 0.68 × 10⁻⁹ kg/N·m). However, higher rGO concentrations (up to 40 mg/L) caused particle agglomeration, which diminished hardness and wear resistance. The findings suggest that Ni–B–rGO composite coatings with optimal rGO content offer improved wear resistance and mechanical performance suitable for applications in automotive, aerospace, oil and gas, and energy industries.

Additional Information

  • Source:Materials Science & Technology. 2024/12, Vol. 40, Issue 18, p1340
  • Document Type:Article
  • Subject Area:Geology
  • Publication Date:2024
  • ISSN:0267-0836
  • DOI:10.1177/02670836241247740
  • Accession Number:180802171
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