Study on the electroless Ni-B nano-composite coatings

Beril Kaya*, Turgut Gulmez, Mehmet Demirkol

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Citations (Scopus)

Abstract

Coating of materials is one of the known surface modification technique in recent years and electroless method is one of the growing areas of both scientific and commercial region. An optimal formulation for electroless Ni-B coating is developed. After doing successful Ni-B coating, nano-sized diamond particles are incorporated into the coating to improve hardness and wear resistance properties of the deposits. To disperse diamonds to the bath, five different suspensions are prepared and also five different electroless composite Ni-B coatings are obtained. The rates and microhardness of coatings after in as-plated and heat-treated conditions are measured. The better composite coatings are chosen to study. SEM examination and then wear test (ball on plate) is done to the nano-composite coatings, electroless Ni-B coating and uncoated plain carbon steel substrates. Microhardness of the nano-composite coatings greatly increased because of the presence of the nano particles. The hardest electroless composite coating (1250 HV100) is 30 times more resistant to wear than steel material, 14 times more resistant than electroless Ni-B coatings.

Original languageEnglish
Title of host publicationIAENG Transactions on Engineering Technologies - Volume II
Subtitle of host publicationSpecial Edition of the World Congress on Engineering and Computer Science, WCECS 2008
Pages62-73
Number of pages12
DOIs
Publication statusPublished - 2009
EventWorld Congress on Engineering and Computer Science, WCECS 2008: International Conference on Advances in Engineering Technologies - San Francisco, CA, United States
Duration: 22 Oct 200824 Oct 2008

Publication series

NameAIP Conference Proceedings
Volume1127
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceWorld Congress on Engineering and Computer Science, WCECS 2008: International Conference on Advances in Engineering Technologies
Country/TerritoryUnited States
CitySan Francisco, CA
Period22/10/0824/10/08

Keywords

  • Composite coating
  • Electroless nickel
  • Nano diamond
  • Wear resistance

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