Microstructure and Porosity Evolution of the Ti–35Zr Biomedical Alloy Produced by Elemental Powder Metallurgy
| Autor: | Joanna Maszybrocka, Izabela Jendrzejewska, Sylwia Golba, Izabela Matuła, Grzegorz Dercz, Justyna Jurek-Suliga, Maciej Zubko |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
porosity
Materials science Scanning electron microscope Alloy Sintering engineering.material lcsh:Technology Article law.invention Optical microscope law Powder metallurgy General Materials Science lcsh:Microscopy Porosity lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T Metallurgy biomaterial Microstructure powder metallurgy Ti–Zr alloys lcsh:TA1-2040 Volume fraction engineering lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 |
| Zdroj: | Materials, Vol 13, Iss 4539, p 4539 (2020) Materials Volume 13 Issue 20 |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma13204539 |
| Popis: | In the present study, the structure and porosity of binary Ti&ndash 35Zr (wt.%) alloy were investigated, allowing to consider powder metallurgy as a production method for new metallic materials for potential medical applications. The porous Ti&ndash Zr alloys were obtained by milling, cold isostatic pressing and sintering. The pressure during cold isostatic pressing was a changing parameter and was respectively 250, 500, 750 and 1000 MPa. The X-ray diffraction study revealed only the &alpha phase, which corresponds to the Ti&ndash Zr phase diagram. The microstructure of the Ti&ndash 35Zr was observed by optical microscopy and scanning electron microscopy. These observations revealed that the volume fraction of the pores decreased from over 20% to about 7% with increasing pressure during the cold isostatic pressing. The microhardness measurements showed changes from 137 HV0.5 to 225 HV0.5. |
| Databáze: | OpenAIRE |
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