Synthesis of TiC reinforced Ti matrix composites by spark plasma sintering and electric discharge sintering

A comparative assessment of microstructural and mechanical properties

W. H. Lee, J. G. Seong, Y. H. Yoon, C. H. Jeong, C. J. Van Tyne, Haigun Lee, S. Y. Chang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Ti-TiC composite materials were produced by spark plasma sintering (SPS) and electric discharge sintering (EDS) of spherical Ti powders with surface-embedded TiC. Hardness (HIT) and reduced elastic modulus (Er) were estimated using the nanoindentation method with an applied load of 100 mN, and compared with the micro-Vickers hardness value. The microstructure of SPS composite compacts revealed that the TiC particles were uniformly distributed only along the Ti particle boundary. On the other hand, for the EDS composite compacts, the strip-like TiC particles of 1–2.5 µm in size were homogeneously dispersed in the Ti matrix, indicating that the discontinuous and randomly orientated TiC can more efficiently impede the plastic flow of the matrix phase of Ti. The micro-Vickers and nanoindentation hardness for the SPS composite compacts slightly increased with increased TiC content from 0 to 20 wt%, the increments of which were about 67 Hv and 0.7 GPa, respectively. Meanwhile, the EDS composite compacts exhibited significantly higher micro-Vickers and nanoindentation hardness with the increment of 653 Hv and 6.5 GPa, respectively. This result was ascribed to the TiC particles uniformly dispersed across the Ti matrix. Accordingly, the ratio values, such as HIT/Er and HIT 3/Er 2, were also significantly higher for the EDS composite compacts at all the range of TiC content due to stiffening and hardening effects derived from the TiC reinforcement. Therefore, the better incorporation of the TiC in the Ti matrix significantly improved the hardness and wear properties of the Ti composite reinforced with TiC produced by EDS compared with the SPS process.

Original languageEnglish
JournalCeramics International
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Electric discharges
Spark plasma sintering
Sintering
Mechanical properties
Composite materials
Nanoindentation
Hardness
Vickers hardness
Plastic flow
Powders
Hardening
Reinforcement
Elastic moduli
Wear of materials
Microstructure

Keywords

  • Composite
  • Electric discharge sintering
  • Spark plasma sintering
  • Titanium
  • Titanium carbide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Synthesis of TiC reinforced Ti matrix composites by spark plasma sintering and electric discharge sintering : A comparative assessment of microstructural and mechanical properties. / Lee, W. H.; Seong, J. G.; Yoon, Y. H.; Jeong, C. H.; Van Tyne, C. J.; Lee, Haigun; Chang, S. Y.

In: Ceramics International, 01.01.2019.

Research output: Contribution to journalArticle

@article{4d6c9fbfb32149598162c9524cceaa3d,
title = "Synthesis of TiC reinforced Ti matrix composites by spark plasma sintering and electric discharge sintering: A comparative assessment of microstructural and mechanical properties",
abstract = "Ti-TiC composite materials were produced by spark plasma sintering (SPS) and electric discharge sintering (EDS) of spherical Ti powders with surface-embedded TiC. Hardness (HIT) and reduced elastic modulus (Er) were estimated using the nanoindentation method with an applied load of 100 mN, and compared with the micro-Vickers hardness value. The microstructure of SPS composite compacts revealed that the TiC particles were uniformly distributed only along the Ti particle boundary. On the other hand, for the EDS composite compacts, the strip-like TiC particles of 1–2.5 µm in size were homogeneously dispersed in the Ti matrix, indicating that the discontinuous and randomly orientated TiC can more efficiently impede the plastic flow of the matrix phase of Ti. The micro-Vickers and nanoindentation hardness for the SPS composite compacts slightly increased with increased TiC content from 0 to 20 wt{\%}, the increments of which were about 67 Hv and 0.7 GPa, respectively. Meanwhile, the EDS composite compacts exhibited significantly higher micro-Vickers and nanoindentation hardness with the increment of 653 Hv and 6.5 GPa, respectively. This result was ascribed to the TiC particles uniformly dispersed across the Ti matrix. Accordingly, the ratio values, such as HIT/Er and HIT 3/Er 2, were also significantly higher for the EDS composite compacts at all the range of TiC content due to stiffening and hardening effects derived from the TiC reinforcement. Therefore, the better incorporation of the TiC in the Ti matrix significantly improved the hardness and wear properties of the Ti composite reinforced with TiC produced by EDS compared with the SPS process.",
keywords = "Composite, Electric discharge sintering, Spark plasma sintering, Titanium, Titanium carbide",
author = "Lee, {W. H.} and Seong, {J. G.} and Yoon, {Y. H.} and Jeong, {C. H.} and {Van Tyne}, {C. J.} and Haigun Lee and Chang, {S. Y.}",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.ceramint.2019.01.062",
language = "English",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Synthesis of TiC reinforced Ti matrix composites by spark plasma sintering and electric discharge sintering

T2 - A comparative assessment of microstructural and mechanical properties

AU - Lee, W. H.

AU - Seong, J. G.

AU - Yoon, Y. H.

AU - Jeong, C. H.

AU - Van Tyne, C. J.

AU - Lee, Haigun

AU - Chang, S. Y.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Ti-TiC composite materials were produced by spark plasma sintering (SPS) and electric discharge sintering (EDS) of spherical Ti powders with surface-embedded TiC. Hardness (HIT) and reduced elastic modulus (Er) were estimated using the nanoindentation method with an applied load of 100 mN, and compared with the micro-Vickers hardness value. The microstructure of SPS composite compacts revealed that the TiC particles were uniformly distributed only along the Ti particle boundary. On the other hand, for the EDS composite compacts, the strip-like TiC particles of 1–2.5 µm in size were homogeneously dispersed in the Ti matrix, indicating that the discontinuous and randomly orientated TiC can more efficiently impede the plastic flow of the matrix phase of Ti. The micro-Vickers and nanoindentation hardness for the SPS composite compacts slightly increased with increased TiC content from 0 to 20 wt%, the increments of which were about 67 Hv and 0.7 GPa, respectively. Meanwhile, the EDS composite compacts exhibited significantly higher micro-Vickers and nanoindentation hardness with the increment of 653 Hv and 6.5 GPa, respectively. This result was ascribed to the TiC particles uniformly dispersed across the Ti matrix. Accordingly, the ratio values, such as HIT/Er and HIT 3/Er 2, were also significantly higher for the EDS composite compacts at all the range of TiC content due to stiffening and hardening effects derived from the TiC reinforcement. Therefore, the better incorporation of the TiC in the Ti matrix significantly improved the hardness and wear properties of the Ti composite reinforced with TiC produced by EDS compared with the SPS process.

AB - Ti-TiC composite materials were produced by spark plasma sintering (SPS) and electric discharge sintering (EDS) of spherical Ti powders with surface-embedded TiC. Hardness (HIT) and reduced elastic modulus (Er) were estimated using the nanoindentation method with an applied load of 100 mN, and compared with the micro-Vickers hardness value. The microstructure of SPS composite compacts revealed that the TiC particles were uniformly distributed only along the Ti particle boundary. On the other hand, for the EDS composite compacts, the strip-like TiC particles of 1–2.5 µm in size were homogeneously dispersed in the Ti matrix, indicating that the discontinuous and randomly orientated TiC can more efficiently impede the plastic flow of the matrix phase of Ti. The micro-Vickers and nanoindentation hardness for the SPS composite compacts slightly increased with increased TiC content from 0 to 20 wt%, the increments of which were about 67 Hv and 0.7 GPa, respectively. Meanwhile, the EDS composite compacts exhibited significantly higher micro-Vickers and nanoindentation hardness with the increment of 653 Hv and 6.5 GPa, respectively. This result was ascribed to the TiC particles uniformly dispersed across the Ti matrix. Accordingly, the ratio values, such as HIT/Er and HIT 3/Er 2, were also significantly higher for the EDS composite compacts at all the range of TiC content due to stiffening and hardening effects derived from the TiC reinforcement. Therefore, the better incorporation of the TiC in the Ti matrix significantly improved the hardness and wear properties of the Ti composite reinforced with TiC produced by EDS compared with the SPS process.

KW - Composite

KW - Electric discharge sintering

KW - Spark plasma sintering

KW - Titanium

KW - Titanium carbide

UR - http://www.scopus.com/inward/record.url?scp=85061081870&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85061081870&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2019.01.062

DO - 10.1016/j.ceramint.2019.01.062

M3 - Article

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

ER -