Effect of ZrO2 addition on densification and properties of Spark plasma sintered Ti6Al4V-Ni

Samuel Ranti Oke; Oluwasegun Eso Falodun; Avwerosuoghene Moses Okoro; Thato S. Tshephe; Peter Apata Olubambi

doi:10.1016/j.matpr.2019.07.094

Effect of ZrO² addition on densification and properties of Spark plasma sintered Ti6Al4V-Ni

Samuel Ranti Oke, Oluwasegun Eso Falodun, Avwerosuoghene Moses Okoro, Thato S. Tshephe, Peter Apata Olubambi

Metallurgy

Research output: Contribution to journal › Conference article › peer-review

7 Citations (Scopus)

Abstract

This study investigates the effect of ZrO² addition on Ti6Al4V-Ni fabricated using spark plasma sintering. The influence of ZrO² content on the densification, microstructure and micro-hardness properties of the composites were examined. The SPS process parameters adopted for the sintering of the composites are sintering temperature of 1000 °C, holding time 10 min, heating rate 100 °C/min and applied pressure 50 MPa. Samples were characterized by SEM, and XRD. Relative density and hardness of the composite were also examined. The result revealed that adopted mixing and sintering process resulted in an even dispersion of Ni and ZrO² particles in the Ti6Al4V matrix with the evolution of Nickel oxide phase. The densification behaviour of the composite showed three distinct densification stages relating to initial particle rearrangement, plastic deformation at powder contact point and mass transport respectively. The addition of ZrO² resulted in an enhancement of the composite hardness but decreased the density.

Original language	English
Pages (from-to)	2454-2460
Number of pages	7
Journal	Materials Today: Proceedings
Volume	18
DOIs	https://doi.org/10.1016/j.matpr.2019.07.094
Publication status	Published - 2019
Event	9th International Conference of Materials Processing and Characterization, ICMPC 2019 - Hyderabad, Andhra Pradesh, India Duration: 8 Mar 2019 → 10 Mar 2019

Keywords

Densification behaviour
Microstructure
Spark Plasma Sintering (SPS)
Titanium matrix composites (TMC)

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1016/j.matpr.2019.07.094

Cite this

@article{2fc1ca2d18944c7c89ce36aa48828904,

title = "Effect of ZrO2 addition on densification and properties of Spark plasma sintered Ti6Al4V-Ni",

abstract = "This study investigates the effect of ZrO2 addition on Ti6Al4V-Ni fabricated using spark plasma sintering. The influence of ZrO2 content on the densification, microstructure and micro-hardness properties of the composites were examined. The SPS process parameters adopted for the sintering of the composites are sintering temperature of 1000 °C, holding time 10 min, heating rate 100 °C/min and applied pressure 50 MPa. Samples were characterized by SEM, and XRD. Relative density and hardness of the composite were also examined. The result revealed that adopted mixing and sintering process resulted in an even dispersion of Ni and ZrO2 particles in the Ti6Al4V matrix with the evolution of Nickel oxide phase. The densification behaviour of the composite showed three distinct densification stages relating to initial particle rearrangement, plastic deformation at powder contact point and mass transport respectively. The addition of ZrO2 resulted in an enhancement of the composite hardness but decreased the density.",

keywords = "Densification behaviour, Microstructure, Spark Plasma Sintering (SPS), Titanium matrix composites (TMC)",

author = "Oke, {Samuel Ranti} and {Eso Falodun}, Oluwasegun and Okoro, {Avwerosuoghene Moses} and Tshephe, {Thato S.} and Olubambi, {Peter Apata}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd.; 9th International Conference of Materials Processing and Characterization, ICMPC 2019 ; Conference date: 08-03-2019 Through 10-03-2019",

year = "2019",

doi = "10.1016/j.matpr.2019.07.094",

language = "English",

volume = "18",

pages = "2454--2460",

journal = "Materials Today: Proceedings",

issn = "2214-7853",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Effect of ZrO2 addition on densification and properties of Spark plasma sintered Ti6Al4V-Ni

AU - Oke, Samuel Ranti

AU - Eso Falodun, Oluwasegun

AU - Okoro, Avwerosuoghene Moses

AU - Tshephe, Thato S.

AU - Olubambi, Peter Apata

PY - 2019

Y1 - 2019

N2 - This study investigates the effect of ZrO2 addition on Ti6Al4V-Ni fabricated using spark plasma sintering. The influence of ZrO2 content on the densification, microstructure and micro-hardness properties of the composites were examined. The SPS process parameters adopted for the sintering of the composites are sintering temperature of 1000 °C, holding time 10 min, heating rate 100 °C/min and applied pressure 50 MPa. Samples were characterized by SEM, and XRD. Relative density and hardness of the composite were also examined. The result revealed that adopted mixing and sintering process resulted in an even dispersion of Ni and ZrO2 particles in the Ti6Al4V matrix with the evolution of Nickel oxide phase. The densification behaviour of the composite showed three distinct densification stages relating to initial particle rearrangement, plastic deformation at powder contact point and mass transport respectively. The addition of ZrO2 resulted in an enhancement of the composite hardness but decreased the density.

AB - This study investigates the effect of ZrO2 addition on Ti6Al4V-Ni fabricated using spark plasma sintering. The influence of ZrO2 content on the densification, microstructure and micro-hardness properties of the composites were examined. The SPS process parameters adopted for the sintering of the composites are sintering temperature of 1000 °C, holding time 10 min, heating rate 100 °C/min and applied pressure 50 MPa. Samples were characterized by SEM, and XRD. Relative density and hardness of the composite were also examined. The result revealed that adopted mixing and sintering process resulted in an even dispersion of Ni and ZrO2 particles in the Ti6Al4V matrix with the evolution of Nickel oxide phase. The densification behaviour of the composite showed three distinct densification stages relating to initial particle rearrangement, plastic deformation at powder contact point and mass transport respectively. The addition of ZrO2 resulted in an enhancement of the composite hardness but decreased the density.

KW - Densification behaviour

KW - Microstructure

KW - Spark Plasma Sintering (SPS)

KW - Titanium matrix composites (TMC)

UR - http://www.scopus.com/inward/record.url?scp=85077612639&partnerID=8YFLogxK

U2 - 10.1016/j.matpr.2019.07.094

DO - 10.1016/j.matpr.2019.07.094

M3 - Conference article

AN - SCOPUS:85077612639

SN - 2214-7853

VL - 18

SP - 2454

EP - 2460

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

T2 - 9th International Conference of Materials Processing and Characterization, ICMPC 2019

Y2 - 8 March 2019 through 10 March 2019

ER -