Investigation of the tensile properties of heat treated Ti-Mo alloys

Lerato Raganya, Nthabiseng Moshokoa, Babatunde Abiodun Obadele, Peter Apata Olubambi, Ronald Machaka

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)

Abstract

Extensive efforts have been undertaken to develop Ti alloys consisting of single b phase in order to substitute the α + β phase in Ti-6Al-4V used as biomaterials. This study was aimed at investigating the tensile properties of solution treated Ti-10Mo and Ti-12Mo alloys as a function of their deformation mechanisms. The optical microscope (OM) was used to perform microstructural analysis, while the phase identification was conducted using the X-ray diffractometer (XRD). Tensile tests were also conducted at room temperature. Results obtained show that Ti-10Mo alloy possesses higher yield strength probably as a result of stress-induced x transformation and larger elongation due to twinning deformation than Ti-12Mo alloy. On the other hand, Ti-12Mo alloy showed moderate yield strength and large elongation due to the dominant twinning deformation mode. Both Ti-10Mo and Ti-12Mo alloys showed substantial and conspicuous equiaxed dimples, tearing ridges and few cleavage facets, which confirmed the occurrence of quasi-cleavage fracture.

Original languageEnglish
Pages (from-to)1044-1048
Number of pages5
JournalMaterials Today: Proceedings
Volume38
DOIs
Publication statusPublished - 1 Jan 2021
Event2020 International Symposium on Nanostructured, Nanoengineered and Advanced Materials, ISNNAM 2020 - Gold Reef City, South Africa
Duration: 30 Apr 20203 May 2020

Keywords

  • Bo-Md phase stability map
  • Deformation mode
  • Metastable β-Ti alloy
  • Tensile properties

ASJC Scopus subject areas

  • General Materials Science

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