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Influences of current density on tribological characteristics of ceramic coatings on 6061 Al alloy by plasma electrolytic oxidation

  • Harbin Institute of Technology

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

Abstract

Plasma electrolytic oxidation (PEO) of an 6061 Al alloy was accomplished in an electrolyte with sodium hexametaphosphate (10 g/L) and sodium silicate (10 g/L) Coatings were produced at four different current densities (4, 6, 8 and 10 A/dm2). Phase composition, morphology and tribological characteristics of the coatings were studied by X-ray diffraction (XRD), scanning electron microscope (SEM) and ball-on-disk friction testing. The results show that among the four ceramic coatings which were produced under four current densities, the coating produced under the current density of 8 A/dm2 got the lowest wear rate with the value of 4.5 × 10 -5 g/m.

Original languageEnglish
Title of host publicationAdvanced Materials
Pages1892-1895
Number of pages4
DOIs
StatePublished - 2011
Event2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011 - Changsha, China
Duration: 28 May 201130 May 2011

Publication series

NameAdvanced Materials Research
Volume239-242
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
Country/TerritoryChina
CityChangsha
Period28/05/1130/05/11

Keywords

  • 6061 Al alloy
  • Ceramic coatings
  • Plasma electrolytic oxidation
  • Tribological characteristic

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