Corrosion and wear behaviour of ZrO2 modified NiTi coatings on AISI 316 stainless steel

Masego L. Lepule, Babatunde A. Obadele, Anthony Andrews, Peter A. Olubambi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

To study the effect of ZrO2 on the corrosion and wear behaviour of NiTi adaptive coatings, AISI 316 stainless steel samples were laser coated with NiTi-ZrO2 admixed powders. The corrosion behaviour of the composite coatings was studied in 1M H2SO4 using polarisation methods. Both dry and wet wear tests were conducted on composite coatings at different sliding loads using pin-on-disc tribometer setup. The corrosion resistance of the laser coatings depended strongly on the chemical composition and microstructure. The results showed an increase in the corrosion rate, as ZrO2 content increased. Dry wear rate improved, whilst wet wear rate decreased with increased ZrO2 content.
Original languageEnglish
Pages (from-to)21-27
Number of pages7
JournalSurface and Coatings Technology
Volume261
DOIs
Publication statusPublished - Jan 15 2015

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Stainless Steel
stainless steels
corrosion
Stainless steel
Wear of materials
Corrosion
coatings
Coatings
Composite coatings
tribometers
composite materials
wear tests
Lasers
Corrosion rate
corrosion resistance
Powders
lasers
Corrosion resistance
sliding
chemical composition

Cite this

Lepule, Masego L. ; Obadele, Babatunde A. ; Andrews, Anthony ; Olubambi, Peter A. / Corrosion and wear behaviour of ZrO2 modified NiTi coatings on AISI 316 stainless steel. In: Surface and Coatings Technology. 2015 ; Vol. 261. pp. 21-27.
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Corrosion and wear behaviour of ZrO2 modified NiTi coatings on AISI 316 stainless steel. / Lepule, Masego L.; Obadele, Babatunde A.; Andrews, Anthony; Olubambi, Peter A.

In: Surface and Coatings Technology, Vol. 261, 15.01.2015, p. 21-27.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Corrosion and wear behaviour of ZrO2 modified NiTi coatings on AISI 316 stainless steel

AU - Lepule, Masego L.

AU - Obadele, Babatunde A.

AU - Andrews, Anthony

AU - Olubambi, Peter A.

PY - 2015/1/15

Y1 - 2015/1/15

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AB - To study the effect of ZrO2 on the corrosion and wear behaviour of NiTi adaptive coatings, AISI 316 stainless steel samples were laser coated with NiTi-ZrO2 admixed powders. The corrosion behaviour of the composite coatings was studied in 1M H2SO4 using polarisation methods. Both dry and wet wear tests were conducted on composite coatings at different sliding loads using pin-on-disc tribometer setup. The corrosion resistance of the laser coatings depended strongly on the chemical composition and microstructure. The results showed an increase in the corrosion rate, as ZrO2 content increased. Dry wear rate improved, whilst wet wear rate decreased with increased ZrO2 content.

UR - http://www.mendeley.com/catalogue/corrosion-wear-behaviour-zro2-modified-niti-coatings-aisi-316-stainless-steel

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