Effect of initial powder particle size on permeability and corrosion behavior of biomedical porous Ti6Al4V alloy prepared by powder metallurgy technique
In this work, the influence of initial powder particle size on the properties of biomedical porous Ti6Al4V alloys prepared by the space holder method was investigated. The results show that the particle size of the initial powders has a strong impact on the permeability, mechanical properti...
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| Format: | Article |
| Language: | English |
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International Institute for the Science of Sintering, Beograd
2022-01-01
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| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2022/0350-820X2201093P.pdf |
| _version_ | 1818141109960835072 |
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| author | Phuong Doan Dinh van Luan Nguyen van Trinh Pham Trung Tran Bao |
| author_facet | Phuong Doan Dinh van Luan Nguyen van Trinh Pham Trung Tran Bao |
| author_sort | Phuong Doan Dinh |
| collection | DOAJ |
| description | In this work, the influence of initial powder particle size on the properties
of biomedical porous Ti6Al4V alloys prepared by the space holder method was
investigated. The results show that the particle size of the initial powders
has a strong impact on the permeability, mechanical properties and corrosion
behavior of the obtained porous Ti6Al4V alloys. When the mean particle size
increases from dm ~ 17 μm to dm ~ 43 μm, the permeability of the resulted
alloys increased about 47 folds, from 6.74×10-13 to 3.15×10-11 m2. On the
contrary, the yield strength and modulus decreased from 207 MPa and 4.52 GPa
to 98.1 MPa and 3.1 GPa, respectively. In this process, the macropores are
defined by the space holders, the micropores presented on the cell walls are
generated from partial sintering of powders which have an important role in
the enhancement of the connectivity between macropores, porosity and hence,
the permeability of porous materials. It is found that using the bigger
particles led to the higher corrosion current density, Icorr due to the
increase of the contact area with the simulated body fluid solution. |
| first_indexed | 2024-12-11T10:54:40Z |
| format | Article |
| id | doaj.art-0bc171c6999c4b3280c2dee8de6f4ed3 |
| institution | Directory Open Access Journal |
| issn | 0350-820X 1820-7413 |
| language | English |
| last_indexed | 2024-12-11T10:54:40Z |
| publishDate | 2022-01-01 |
| publisher | International Institute for the Science of Sintering, Beograd |
| record_format | Article |
| series | Science of Sintering |
| spelling | doaj.art-0bc171c6999c4b3280c2dee8de6f4ed32022-12-22T01:10:09ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X1820-74132022-01-015419310310.2298/SOS2201093P0350-820X2201093PEffect of initial powder particle size on permeability and corrosion behavior of biomedical porous Ti6Al4V alloy prepared by powder metallurgy techniquePhuong Doan Dinh0van Luan Nguyen1van Trinh Pham2Trung Tran Bao3Institute of Materials Science, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay district, Hanoi, Vietnam Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay district, Hanoi, VietnamInstitute of Materials Science, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay district, Hanoi, Vietnam Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay district, Hanoi, VietnamInstitute of Materials Science, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay district, Hanoi, Vietnam Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay district, Hanoi, VietnamInstitute of Materials Science, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay district, Hanoi, VietnamIn this work, the influence of initial powder particle size on the properties of biomedical porous Ti6Al4V alloys prepared by the space holder method was investigated. The results show that the particle size of the initial powders has a strong impact on the permeability, mechanical properties and corrosion behavior of the obtained porous Ti6Al4V alloys. When the mean particle size increases from dm ~ 17 μm to dm ~ 43 μm, the permeability of the resulted alloys increased about 47 folds, from 6.74×10-13 to 3.15×10-11 m2. On the contrary, the yield strength and modulus decreased from 207 MPa and 4.52 GPa to 98.1 MPa and 3.1 GPa, respectively. In this process, the macropores are defined by the space holders, the micropores presented on the cell walls are generated from partial sintering of powders which have an important role in the enhancement of the connectivity between macropores, porosity and hence, the permeability of porous materials. It is found that using the bigger particles led to the higher corrosion current density, Icorr due to the increase of the contact area with the simulated body fluid solution.http://www.doiserbia.nb.rs/img/doi/0350-820X/2022/0350-820X2201093P.pdfti6al4vbiomedical alloysporouspermeabilitycorrosion |
| spellingShingle | Phuong Doan Dinh van Luan Nguyen van Trinh Pham Trung Tran Bao Effect of initial powder particle size on permeability and corrosion behavior of biomedical porous Ti6Al4V alloy prepared by powder metallurgy technique Science of Sintering ti6al4v biomedical alloys porous permeability corrosion |
| title | Effect of initial powder particle size on permeability and corrosion behavior of biomedical porous Ti6Al4V alloy prepared by powder metallurgy technique |
| title_full | Effect of initial powder particle size on permeability and corrosion behavior of biomedical porous Ti6Al4V alloy prepared by powder metallurgy technique |
| title_fullStr | Effect of initial powder particle size on permeability and corrosion behavior of biomedical porous Ti6Al4V alloy prepared by powder metallurgy technique |
| title_full_unstemmed | Effect of initial powder particle size on permeability and corrosion behavior of biomedical porous Ti6Al4V alloy prepared by powder metallurgy technique |
| title_short | Effect of initial powder particle size on permeability and corrosion behavior of biomedical porous Ti6Al4V alloy prepared by powder metallurgy technique |
| title_sort | effect of initial powder particle size on permeability and corrosion behavior of biomedical porous ti6al4v alloy prepared by powder metallurgy technique |
| topic | ti6al4v biomedical alloys porous permeability corrosion |
| url | http://www.doiserbia.nb.rs/img/doi/0350-820X/2022/0350-820X2201093P.pdf |
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