Microstructure investigation of Ti-26Nb alloy manufactured from elemental powders by electron beam melting

Research output: Contribution to journalConference article

Abstract

Alloys which are planned to be used for implants fabrication must possess excellent biocompatibility, high strength, and low Young's modulus. A low elastic modulus, close to that of the cortical bone could significantly reduce the stress-shielding phenomenon usually occurring after surgery. Beta-titanium alloys such as Ti-Nb are good candidates for this purpose. Nb is known as a biocompatible metal used for titanium β-phase stabilization. Previous investigations indicate that the increase of Nb content results in the increase of β phase amount but the decrease of β grain size. In this study, we were aiming at the investigation of the microstructural properties of a titanium alloy manufactured by electron beam melting from the elemental powders mixture of Ti and Nb with 26 at.% of Nb. The influence of operating parameters on the efficacy of dissolving Nb particles in Ti was studied. The results obtained by SEM analysis demonstrated that electron beam energy has a significant effect on the homogeneity of the manufactured specimens. To obtain homogeneous and porosity-free specimens high energy level is required. The microstructure of these specimens was characterized.

Original languageEnglish
Article number012126
JournalJournal of Physics: Conference Series
Volume1347
Issue number1
DOIs
Publication statusPublished - 17 Dec 2019
Event15th International Russian-Chinese Symposium on Advanced Materials and Processes - Sochi, Russian Federation
Duration: 16 Oct 201919 Oct 2019

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melting
titanium alloys
electron beams
microstructure
modulus of elasticity
biocompatibility
high strength
surgery
bones
homogeneity
shielding
dissolving
titanium
stabilization
grain size
energy levels
porosity
fabrication
scanning electron microscopy
metals

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Microstructure investigation of Ti-26Nb alloy manufactured from elemental powders by electron beam melting. / Khrapov, D.; Surmeneva, M.; Koptioug, A.; Surmenev, R.

In: Journal of Physics: Conference Series, Vol. 1347, No. 1, 012126, 17.12.2019.

Research output: Contribution to journalConference article

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