Synthesis of Ti-6Al-4V alloy with nano-TiN microstructure via spark plasma sintering technique

O. E. Falodun, B. A. Obadele, S. R. Oke, M. E. Maja, P. A. Olubambi

Research output: Contribution to journalConference article

8 Citations (Scopus)

Abstract

The effect of nano-TiN dispersion strengthened Ti-6Al-4V via spark plasma sintering method has been investigated. Ti-6Al-4V with 4 vol. percent of nano-TiN were mixed in a Turbula shaker mixer for 8 h at a speed of 49 rpm and the admixed powders were sintered at sintering temperature range of 1000 - 1100 °C, holding time of 10-30 mins, heating rate of 100 °C/min under an applied pressure of 50 MPa. The morphology of the as-received and sintered compacts was examined by scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDS) and phase analysis was done by X-ray diffractometry (XRD). The sintered compacts without nano-TiN reveal lamellar structure while reinforced Ti-6Al-4V with nano-TiN shows a bimodal structure and titanium nitride has a great influence on a grain growth at high temperature. Furthermore, the microstructural formation mechanism was investigated. With the addition of the content of Ti-6Al-4V with 4 vol.% of nano-TiN, the micro-hardness also improved and this was due to homogenous distribution of TiN in Ti-6Al-4V matrix.

Original languageEnglish
Article number012029
JournalIOP Conference Series: Materials Science and Engineering
Volume272
Issue number1
DOIs
Publication statusPublished - Dec 21 2017
Externally publishedYes
Event2017 4th International Conference on Mechanical, Materials and Manufacturing, ICMMM 2017 - Atlanta, United States
Duration: Oct 25 2017Oct 27 2017

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

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