Mechanical properties and microstructures of cast dental Ti-Fe alloys
| Autor: | Keiichi Sasaki, Yukyo Takada, Hirofumi Yamaguchi, Masatoshi Takahashi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
0206 medical engineering Alloy chemistry.chemical_element 02 engineering and technology engineering.material 03 medical and health sciences 0302 clinical medicine X-Ray Diffraction Hardness Tensile Strength Materials Testing Alloys Ductility General Dentistry Titanium Metallurgy Titanium alloy 030206 dentistry Microstructure 020601 biomedical engineering Wear resistance chemistry X-ray crystallography Ceramics and Composites engineering Elongation Dental Alloys |
| Zdroj: | Dental Materials Journal. 40:61-67 |
| ISSN: | 1881-1361 0287-4547 |
| Popis: | Binary Ti-Fe alloys of varying concentrations of Fe between 5-25% were made, and their castings evaluated in terms of microstructures formed and mechanical properties. The aim of this study was to explore the composition of Ti-Fe alloys that offers improved wear resistance of titanium. X-ray diffraction and microstructural observation revealed that 5-7% Fe, 8-15% Fe, and 20-25% Fe consisted of α+β, single β, and β+Ti-Fe phases, respectively. The hardness of alloys with 8-13% Fe was almost equal to that of Co-Cr alloys but lower than of the other Ti-Fe alloys. Elongation of the Ti-Fe alloys was negligible. However, dimples were observed in specimen containing 7-11% Fe. Alloys with 9% Fe demonstrated the highest strength of more than 850 MPa. We believe that Ti-Fe alloys with 8-11% Fe may be applicable in development of an alloy with good wear resistance due to the exhibited properties of high hardness and ductility albeit low. |
| Databáze: | OpenAIRE |
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