Effect of ZrO2 addition on the dry sliding wear behavior of laser clad Ti6Al4V alloy

Babatunde Abiodun Obadele; Anthony Andrews; Peter Apata Olubambi; Mathew T. Mathew; Sisa Pityana

doi:10.1016/j.wear.2015.02.056

Effect of ZrO₂ addition on the dry sliding wear behavior of laser clad Ti6Al4V alloy

Babatunde Abiodun Obadele, Anthony Andrews, Peter Apata Olubambi, Mathew T. Mathew, Sisa Pityana

Research output: Contribution to journal › Article › peer-review

60 Citations (Scopus)

Abstract

The relationship between microstructure and wear behavior of Ti6Al4V alloy and three laser-clad composite coatings (TiNi, TiNi5ZrO₂, and TiNi10ZrO₂) was investigated. Dry sliding wear tests were carried out using a ball-on-disk wear tester under varying loads. WC was used as the counterface material. The results showed that additions of ZrO₂ refined the microstructure of TiNi from a dendritic to a flower-like microstructure. An improvement in the microindentation hardness value was also observed. Results indicated that the wear volume of clad TiNi alloy decreased with the addition of ZrO₂ particles. The microstructural changes due to ZrO₂ additions played a significant role in the wear performance of the clad TiNi alloy. Analysis of worn surfaces and wear debris indicated that the dominant wear mechanism for the Ti6Al4V alloy was adhesive wear with ploughing.

Original language	English
Pages (from-to)	295-300
Number of pages	6
Journal	Wear
Volume	328-329
DOIs	https://doi.org/10.1016/j.wear.2015.02.056
Publication status	Published - 5 Apr 2015
Externally published	Yes

Keywords

Composite coatings
Laser cladding
TiNiZrO
Wear

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.wear.2015.02.056

Cite this

@article{9b8c3038d4e24ee29a2a94275938f6d8,

title = "Effect of ZrO2 addition on the dry sliding wear behavior of laser clad Ti6Al4V alloy",

abstract = "The relationship between microstructure and wear behavior of Ti6Al4V alloy and three laser-clad composite coatings (TiNi, TiNi5ZrO2, and TiNi10ZrO2) was investigated. Dry sliding wear tests were carried out using a ball-on-disk wear tester under varying loads. WC was used as the counterface material. The results showed that additions of ZrO2 refined the microstructure of TiNi from a dendritic to a flower-like microstructure. An improvement in the microindentation hardness value was also observed. Results indicated that the wear volume of clad TiNi alloy decreased with the addition of ZrO2 particles. The microstructural changes due to ZrO2 additions played a significant role in the wear performance of the clad TiNi alloy. Analysis of worn surfaces and wear debris indicated that the dominant wear mechanism for the Ti6Al4V alloy was adhesive wear with ploughing.",

keywords = "Composite coatings, Laser cladding, TiNiZrO, Wear",

author = "Obadele, {Babatunde Abiodun} and Anthony Andrews and Olubambi, {Peter Apata} and Mathew, {Mathew T.} and Sisa Pityana",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = apr,

day = "5",

doi = "10.1016/j.wear.2015.02.056",

language = "English",

volume = "328-329",

pages = "295--300",

journal = "Wear",

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T1 - Effect of ZrO2 addition on the dry sliding wear behavior of laser clad Ti6Al4V alloy

AU - Obadele, Babatunde Abiodun

AU - Andrews, Anthony

AU - Olubambi, Peter Apata

AU - Mathew, Mathew T.

AU - Pityana, Sisa

PY - 2015/4/5

Y1 - 2015/4/5

N2 - The relationship between microstructure and wear behavior of Ti6Al4V alloy and three laser-clad composite coatings (TiNi, TiNi5ZrO2, and TiNi10ZrO2) was investigated. Dry sliding wear tests were carried out using a ball-on-disk wear tester under varying loads. WC was used as the counterface material. The results showed that additions of ZrO2 refined the microstructure of TiNi from a dendritic to a flower-like microstructure. An improvement in the microindentation hardness value was also observed. Results indicated that the wear volume of clad TiNi alloy decreased with the addition of ZrO2 particles. The microstructural changes due to ZrO2 additions played a significant role in the wear performance of the clad TiNi alloy. Analysis of worn surfaces and wear debris indicated that the dominant wear mechanism for the Ti6Al4V alloy was adhesive wear with ploughing.

AB - The relationship between microstructure and wear behavior of Ti6Al4V alloy and three laser-clad composite coatings (TiNi, TiNi5ZrO2, and TiNi10ZrO2) was investigated. Dry sliding wear tests were carried out using a ball-on-disk wear tester under varying loads. WC was used as the counterface material. The results showed that additions of ZrO2 refined the microstructure of TiNi from a dendritic to a flower-like microstructure. An improvement in the microindentation hardness value was also observed. Results indicated that the wear volume of clad TiNi alloy decreased with the addition of ZrO2 particles. The microstructural changes due to ZrO2 additions played a significant role in the wear performance of the clad TiNi alloy. Analysis of worn surfaces and wear debris indicated that the dominant wear mechanism for the Ti6Al4V alloy was adhesive wear with ploughing.

KW - Composite coatings

KW - Laser cladding

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