Fatigue behaviour of boron free and boron containing heat treated Ti-13Zr-13Nb alloy for biomedical applications

Fatigue behaviour of boron free and boron containing heat treated Ti-13Zr-13Nb alloy for biomedical applications

Fatigue behaviour of heat treated Ti-13Zr-13Nb (TZN) and Ti-13Zr-13Nb-0.5B (TZNB) alloys for biomedical implants has been investigated by rotating bending test. It was found that fatigue strength of TZN and TZNB alloys is comparable with that of conventionally used biomedical titanium alloys. Additi...

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Veröffentlicht in:Materials characterization 2010-12, Vol.61 (12), p.1394-1399
Hauptverfasser: Majumdar, P., Singh, S.B., Chakraborty, M.
Format: Artikel
Sprache:eng
Schlagworte:
AGING
Alloying additive
Applied sciences
BENDING
Biocompatibility
Biomedical materials
Boron
BORON ADDITIONS
Cross-disciplinary physics: materials science
rheology
Deterioration
Exact sciences and technology
FATIGUE
Fatigue (materials)
Fatigue strength
HEAT TREATMENTS
IMPLANTS
MATERIALS SCIENCE
MATRIX MATERIALS
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
MICROSTRUCTURE
NIOBIUM ALLOYS
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
SCANNING ELECTRON MICROSCOPY
SEM
Solidification
Surgical implants
Titanium alloy
TITANIUM BASE ALLOYS
TITANIUM BORIDES
ULTIMATE STRENGTH
ZIRCONIUM ALLOYS
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Zusammenfassung:Fatigue behaviour of heat treated Ti-13Zr-13Nb (TZN) and Ti-13Zr-13Nb-0.5B (TZNB) alloys for biomedical implants has been investigated by rotating bending test. It was found that fatigue strength of TZN and TZNB alloys is comparable with that of conventionally used biomedical titanium alloys. Addition of boron to TZN alloy deteriorates fatigue strength. ►The microstructure of the aged TZN consists of α phase in β matrix. ►Addition of boron to TZN leads to the formation of dispersed acicular TiB. ►Presence of TiB deteriorates the fatigue strength of TZN alloy. ►Fatigue strength of aged TZN/TZNB alloys is comparable with biomedical Ti-alloys.
ISSN:1044-5803
1873-4189
DOI:10.1016/j.matchar.2010.10.004