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https://repositorio.ufrn.br/jspui/handle/123456789/27889| Title: | Mechanical properties of hot pressed CoCrMo alloy compacts for biomedical applications |
| Authors: | Henriques, B. Bagheri, A. Gasik, M. Souza, J.C.M. Carvalho, O. Silva, F.S. Nascimento, Rubens Maribondo do |
| Keywords: | CoCrMo alloy;Hot pressing;Mechanical properties;Biomedical applications |
| Issue Date: | 2015 |
| Publisher: | Elsevier |
| Citation: | HENRIQUES, B. ; BAGHERI, A. ; GASIK, M. ; SOUZA, J.C.M. ; CARVALHO, O. ; SILVA, F.S. ; Nascimento, R.M. . Mechanical properties of hot pressed CoCrMo alloy compacts for biomedical applications. Materials & Design, v. 83, p. 829-834, 2015. Disponível em: https://www.sciencedirect.com/science/article/pii/S0264127515004190. Acesso em: |
| Portuguese Abstract: | This study aimed at investigating the influence of the processing conditions on the mechanical properties of hot pressed compacts of a CoCrMo biomedical alloy. Several hot pressed CoCrMo compacts were processed in vacuum (102 mbar), at a pressure of 60 MPa with different temperatures (900 C, 1000 C and 1100 C) and different times (10 min, 30 min and 60 min). Compacts were examined by SEM/EDS. The transverse rupture strength, Young’s Moduli and hardness were determined. The fracture surface of compacts were also examined. The compacts hot pressed at 900 C exhibited lower TRS than those processed at 1000 C and 1100 C, which showed similar strength values, regardless the sintering time. The 900 C compacts showed also lower YM and higher porosity. Lower hardness values were registered for 900 C compacts while 1000 C compacts exhibited the highest values. The fracture surface analyses revealed fragile fracture for 900 C compacts (10 min and 30 min) and 1000 C (10 min). The remaining compacts exhibited ductile fracture. A full characterization of the mechanical properties of hot pressed CoCrMo compacts has been made and the selection of the processing parameters according to the desired mechanical properties is now possible. |
| URI: | https://repositorio.ufrn.br/jspui/handle/123456789/27889 |
| ISSN: | 0264-1275 |
| Appears in Collections: | CT - DEMAT - Artigos publicados em periódicos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Mechanicalpropertieshot_Nascimento_2015.pdf | 2,02 MB | Adobe PDF |  View/Open |
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