Effects of Mo content on the microstructural and mechanical properties of as-cast Ti-Mo alloys

N. Moshokoa, L. Raganya, B. Obadele, P. Olubambi, R. Machaka

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

The effects of Mo content on the mechanical and microstructural properties of as-cast Ti-10Mo wt.% and Ti-15Mo wt.% alloys were measured in order to evaluate their possible use in biomedical applications. The microstructure and phase analysis of as-cast specimens were studied using an optical microscopy and X-ray diffraction (XRD). The micro-Vickers hardness properties of the alloys were examined using Vickers equipment and the elastic modulus was determined using the tensile test. Results indicated that the Mo content influenced the structure-property relationship. The relative density increased significantly with the addition of Mo, the optical microscopy results showed that CP Ti was characterised with an α'-phase lamellar structure and with the addition of Mo, the microstructure composed of β phase with equiaxed grains of different sizes with sub-grain boundaries were observed. The measured XRD patterns showed that the CP Ti consisted of α'-phase and with the addition of Mo, the resultant alloys consisted of the β-phase. The micro-Vickers hardness and elastic modulus increased significantly after the addition of 10 wt.% Mo and then decreased significantly when the Mo content was raised to15 wt.%.

Original languageEnglish
Article number012015
JournalIOP Conference Series: Materials Science and Engineering
Volume655
Issue number1
DOIs
Publication statusPublished - Nov 8 2019
EventConference of the South African Advanced Materials Initiative 2019, CoSAAMI 2019 - Vanderbijlpark, South Africa
Duration: Oct 22 2019Oct 25 2019

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

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