Tribocorrosion behavior of electroless Ni-P/Ni-B duplex coating on AA7075 aluminum alloy

MİNDİVAN H.

Industrial Lubrication and Tribology, vol.71, no.5, pp.630-635, 2019 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 71 Issue: 5
  • Publication Date: 2019
  • Doi Number: 10.1108/ilt-05-2018-0177
  • Journal Name: Industrial Lubrication and Tribology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.630-635
  • Keywords: AA7075 aluminum alloy, Corrosion, Electroless Ni-P/Ni-B duplex coating, Tribocorrosion
  • Bilecik Şeyh Edebali University Affiliated: Yes

Abstract

© 2019, Emerald Publishing Limited.Purpose: This paper aims to investigate the structural, corrosion and the study of tribocorrosion features of the AA7075 aluminum alloy with and without the application of electroless Ni-P/Ni-B duplex coating with a thickness of approximately 40 microns. Design/methodology/approach: Surface characterization of the samples was made by structural surveys (light optic microscope, scanning electron microscopic examinations and X-ray diffraction analyses), hardness measurements, corrosion and tribocorrosion tests. Findings: Results of the experiments showed that upper Ni-B coating deposited on the surface of first Ni-P layer by duplex treatment caused remarkable increment in the hardness, corrosion resistance and tribocorrosion performance as compared to the AA7075 aluminum alloy. Originality/value: This study can be a practical reference and offers insight into the effects of duplex treating on the increase of hardness, corrosion and tribocorrosion performance.