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 article

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

Fingerprint

Vickers hardness
Mechanical properties
Optical microscopy
Elastic moduli
X ray diffraction
Microstructure
Lamellar structures
Diffraction patterns
Grain boundaries

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

@article{d5ecd5438bd348079d8969b047747c9f,
title = "Effects of Mo content on the microstructural and mechanical properties of as-cast Ti-Mo alloys",
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.{\%}.",
author = "N. Moshokoa and L. Raganya and B. Obadele and P. Olubambi and R. Machaka",
year = "2019",
month = "11",
day = "8",
doi = "10.1088/1757-899X/655/1/012015",
language = "English",
volume = "655",
journal = "IOP Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "IOP Publishing Ltd.",
number = "1",

}

Effects of Mo content on the microstructural and mechanical properties of as-cast Ti-Mo alloys. / Moshokoa, N.; Raganya, L.; Obadele, B.; Olubambi, P.; Machaka, R.

In: IOP Conference Series: Materials Science and Engineering, Vol. 655, No. 1, 012015, 08.11.2019.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Effects of Mo content on the microstructural and mechanical properties of as-cast Ti-Mo alloys

AU - Moshokoa, N.

AU - Raganya, L.

AU - Obadele, B.

AU - Olubambi, P.

AU - Machaka, R.

PY - 2019/11/8

Y1 - 2019/11/8

N2 - 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.%.

AB - 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.%.

UR - http://www.scopus.com/inward/record.url?scp=85076407519&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076407519&partnerID=8YFLogxK

U2 - 10.1088/1757-899X/655/1/012015

DO - 10.1088/1757-899X/655/1/012015

M3 - Conference article

AN - SCOPUS:85076407519

VL - 655

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

SN - 1757-8981

IS - 1

M1 - 012015

ER -