Tribocorrosion behaviour of laser cladded biomedical grade titanium alloy

B. A. Obadele, A. Andrews, P. A. Olubambi, M. T. Mathew, S. Pityana

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The tribocorrosion behaviour of laser cladded Ti6Al4V sliding against alumina ball in 3.5% NaCl has been assessed. Commercially pure (CP) Ti particles were laser cladded on Ti6Al4V using ytterbium laser system (YLS). The tribocorrosion behaviour of Ti6Al4V before and after treatment was investigated in 3.5% NaCl (pH = 6.24) and modified 3.5% NaCl (pH = 4) solutions using a pin-on-disk tribometer with integrated potentiostat. Potentiodynamic polarization curves indicated that the corrosion potentials of cladded Ti6Al4V decreased compared to that of the uncladded samples. Additionally, the corrosion current densities of cladded Ti6Al4V decreased significantly in both electrolytes investigated. The tribocorrosion behaviour of cladded Ti6Al4V did not change significantly. The wear depth of cladded Ti6Al4V decreased significantly in modified 3.5% NaCl whilst remaining unchanged in 3.5% NaCl. The coefficient of friction (COF) increased with time in Ti6Al4V whilst that of cladded sample decreased marginally with time in both electrolytes.

Original languageEnglish
Pages (from-to)1133-1139
Number of pages7
JournalMaterials and Corrosion
Volume66
Issue number10
DOIs
Publication statusPublished - Oct 1 2015
Externally publishedYes

Fingerprint

Titanium alloys
titanium
laser
electrolyte
Lasers
corrosion
Electrolytes
Corrosion
Ytterbium
Potentiodynamic polarization
density current
aluminum oxide
sliding
Current density
Alumina
friction
polarization
Wear of materials
Friction
titanium alloy (TiAl6V4)

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Obadele, B. A. ; Andrews, A. ; Olubambi, P. A. ; Mathew, M. T. ; Pityana, S. / Tribocorrosion behaviour of laser cladded biomedical grade titanium alloy. In: Materials and Corrosion. 2015 ; Vol. 66, No. 10. pp. 1133-1139.
@article{98929217ab584bd1b3e3a0dc7573b0b7,
title = "Tribocorrosion behaviour of laser cladded biomedical grade titanium alloy",
abstract = "The tribocorrosion behaviour of laser cladded Ti6Al4V sliding against alumina ball in 3.5{\%} NaCl has been assessed. Commercially pure (CP) Ti particles were laser cladded on Ti6Al4V using ytterbium laser system (YLS). The tribocorrosion behaviour of Ti6Al4V before and after treatment was investigated in 3.5{\%} NaCl (pH = 6.24) and modified 3.5{\%} NaCl (pH = 4) solutions using a pin-on-disk tribometer with integrated potentiostat. Potentiodynamic polarization curves indicated that the corrosion potentials of cladded Ti6Al4V decreased compared to that of the uncladded samples. Additionally, the corrosion current densities of cladded Ti6Al4V decreased significantly in both electrolytes investigated. The tribocorrosion behaviour of cladded Ti6Al4V did not change significantly. The wear depth of cladded Ti6Al4V decreased significantly in modified 3.5{\%} NaCl whilst remaining unchanged in 3.5{\%} NaCl. The coefficient of friction (COF) increased with time in Ti6Al4V whilst that of cladded sample decreased marginally with time in both electrolytes.",
author = "Obadele, {B. A.} and A. Andrews and Olubambi, {P. A.} and Mathew, {M. T.} and S. Pityana",
year = "2015",
month = "10",
day = "1",
doi = "10.1002/maco.201408037",
language = "English",
volume = "66",
pages = "1133--1139",
journal = "Materials and Corrosion - Werkstoffe und Korrosion",
issn = "0947-5117",
publisher = "John Wiley and Sons Ltd",
number = "10",

}

Tribocorrosion behaviour of laser cladded biomedical grade titanium alloy. / Obadele, B. A.; Andrews, A.; Olubambi, P. A.; Mathew, M. T.; Pityana, S.

In: Materials and Corrosion, Vol. 66, No. 10, 01.10.2015, p. 1133-1139.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Tribocorrosion behaviour of laser cladded biomedical grade titanium alloy

AU - Obadele, B. A.

AU - Andrews, A.

AU - Olubambi, P. A.

AU - Mathew, M. T.

AU - Pityana, S.

PY - 2015/10/1

Y1 - 2015/10/1

N2 - The tribocorrosion behaviour of laser cladded Ti6Al4V sliding against alumina ball in 3.5% NaCl has been assessed. Commercially pure (CP) Ti particles were laser cladded on Ti6Al4V using ytterbium laser system (YLS). The tribocorrosion behaviour of Ti6Al4V before and after treatment was investigated in 3.5% NaCl (pH = 6.24) and modified 3.5% NaCl (pH = 4) solutions using a pin-on-disk tribometer with integrated potentiostat. Potentiodynamic polarization curves indicated that the corrosion potentials of cladded Ti6Al4V decreased compared to that of the uncladded samples. Additionally, the corrosion current densities of cladded Ti6Al4V decreased significantly in both electrolytes investigated. The tribocorrosion behaviour of cladded Ti6Al4V did not change significantly. The wear depth of cladded Ti6Al4V decreased significantly in modified 3.5% NaCl whilst remaining unchanged in 3.5% NaCl. The coefficient of friction (COF) increased with time in Ti6Al4V whilst that of cladded sample decreased marginally with time in both electrolytes.

AB - The tribocorrosion behaviour of laser cladded Ti6Al4V sliding against alumina ball in 3.5% NaCl has been assessed. Commercially pure (CP) Ti particles were laser cladded on Ti6Al4V using ytterbium laser system (YLS). The tribocorrosion behaviour of Ti6Al4V before and after treatment was investigated in 3.5% NaCl (pH = 6.24) and modified 3.5% NaCl (pH = 4) solutions using a pin-on-disk tribometer with integrated potentiostat. Potentiodynamic polarization curves indicated that the corrosion potentials of cladded Ti6Al4V decreased compared to that of the uncladded samples. Additionally, the corrosion current densities of cladded Ti6Al4V decreased significantly in both electrolytes investigated. The tribocorrosion behaviour of cladded Ti6Al4V did not change significantly. The wear depth of cladded Ti6Al4V decreased significantly in modified 3.5% NaCl whilst remaining unchanged in 3.5% NaCl. The coefficient of friction (COF) increased with time in Ti6Al4V whilst that of cladded sample decreased marginally with time in both electrolytes.

UR - http://www.scopus.com/inward/record.url?scp=84943201407&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84943201407&partnerID=8YFLogxK

U2 - 10.1002/maco.201408037

DO - 10.1002/maco.201408037

M3 - Article

AN - SCOPUS:84943201407

VL - 66

SP - 1133

EP - 1139

JO - Materials and Corrosion - Werkstoffe und Korrosion

JF - Materials and Corrosion - Werkstoffe und Korrosion

SN - 0947-5117

IS - 10

ER -