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Mechanical properties and microstructures of dental cast Ti-6Nb-4Cu, Ti-18Nb-2Cu, and Ti-24Nb-1Cu alloys
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- TAKAHASHI Masatoshi
- Division of Dental Bioaterials, Tohoku University Graduate School of Dentistry
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- TAKADA Yukyo
- Division of Dental Bioaterials, Tohoku University Graduate School of Dentistry
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- KIKUCHI Masafumi
- Department of Biomaterials Science, Kagoshima University Graduate School of Medical and Dental Sciences
Bibliographic Information
- Published
- 2016
- Resource Type
- journal article
- DOI
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- 10.4012/dmj.2015-354
- Publisher
- The Japanese Society for Dental Materials and Devices
Search this article
Description
<p>The mechanical properties —tensile strength, yield strength, elongation after fracture, and Vickers hardness— and alloy phases of the dental cast alloys Ti-6%Nb-4%Cu, Ti-18%Nb-2%Cu, and Ti-24%Nb-1%Cu were investigated. Ti-6%Nb-4%Cu consisted of a single α-phase, while Ti-18%Nb-2%Cu and Ti-24%Nb-1%Cu consisted of α- and β-phases. The tensile strengths, yield strengths, and hardnesses of these alloys were higher than those of Ti-5%Cu and Ti-30%Nb; however, their breaking elongations were smaller. These differences in the mechanical properties are attributable to solid-solution strengthening or to precipitation strengthening by the dual-phase (α+β) structure. Thus, Ti-Nb-Cu alloys are suitable for use in high-strength dental prostheses, such as implantretained superstructures and narrow-diameter implants.</p>
Journal
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- Dental Materials Journal
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Dental Materials Journal 35 (4), 564-570, 2016
The Japanese Society for Dental Materials and Devices
