Metollurgical caracterization of Ni-Cr alloys for use vith porcelain
Alternative Ni-Cr alloys applied in dentistry of two commercial brands for ceramometal restoration were evaluated. The alloys were analyzed in the commercial and after casting conditions using experimental techniques of metallography, X-ray diffraction, superficial hardness and density. The metalogr...
| Authors: | , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2021 |
| Country: | Brasil |
| Institution: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repository: | Revista da Faculdade de Odontologia de Porto Alegre (Online) |
| Language: | Portuguese |
| OAI Identifier: | oai:seer.ufrgs.br:article/111055 |
| Online Access: | https://seer.ufrgs.br/index.php/RevistadaFaculdadeOdontologia/article/view/111055 |
| Access Level: | Open access |
| Keyword: | Ni-Cr alloys Ceramometal Superficial hardness Ligas de Ni-Cr Metalocerâmica Dureza superficial |
| Summary: | Alternative Ni-Cr alloys applied in dentistry of two commercial brands for ceramometal restoration were evaluated. The alloys were analyzed in the commercial and after casting conditions using experimental techniques of metallography, X-ray diffraction, superficial hardness and density. The metalografics and X-ray diffraction analysis showed that, the alloys microstructure is marked with the presence of a solid solution having an ordered face- centred cubic structure, Ni-rich austenitic (y phase) matrix, and with fine precipitates particles of secondary phases. The Vicker hardness tests showed a decrease in hardness values of the studied alloys aer casting. The alloys density values, on the other hand, did not manifest changes. |
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