Mechanical, physical, and chemical characterization of Ti-35Nb-5Zr and Ti-35Nb-10Zr casting alloys.

Abstract

Titanium is used due its excellent properties in medical and dentistry areas. With the objective of exploiting better mechanical properties, not altering its biocompatibility, it was intended to add niobium and zirconium to the titanium, being formulated two alloys Ti-35%Nb-5%Zr (alloy 1) and Ti-35%Nb-10%Zr (alloy 2) wt% produced by an arc melting method. The chemical analysis of the samples was accomplished by X-ray fluorescence, and the microstrutural evaluation by scanning electron microscopy and X-ray diffraction. The mechanical tests were: Vickers hardness, tensile strength, mechanical cycling, and fracture analysis. The results allowed characterizing the alloy 1 as alpha + beta type and the alloy 2 as beta type. It is found that the alloy 1 presented larger hardness and smaller tensile strength than the alloy 2. The fractures, after the tensile test, were of the ductile type and, after the mechanical cycling, they were of the mixed type for both alloys.

• Authors: Ana Lúcia Roselino Ribeiro, Rubens Caram Junior, Flávia Farias Cardoso, Romeu Belon Fernandes Filho, Luís Geraldo Vaz
• Journal: Journal of materials science. Materials in medicine (J Mater Sci Mater Med) Vol. 20 Issue 8 Pg. 1629-36 (Aug 2009) ISSN: 1573-4838 [Electronic] United States
• PMID: 19337820 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Validation Study)

Chemical References

• Alloys
• Dental Alloys
• Ti-35Nb-10Zr alloy
• Ti-35Nb-5Zr alloy
• Niobium
• Zirconium
• Titanium

Topics

• Alloys (chemical synthesis, chemistry)
• Casts, Surgical
• Dental Alloys (chemical synthesis, chemistry)
• Dental Casting Technique (instrumentation)
• Hardness (physiology)
• Materials Testing
• Niobium (chemistry)
• Stress, Mechanical
• Tensile Strength (physiology)
• Titanium (chemistry)
• X-Ray Diffraction
• Zirconium (chemistry)