Microstructure and mechanical properties of WC-Co reinforced with NbC
Cemented carbides such as tungsten carbide-cobalt WC-Co composites have been widely used as cutting tool materials. Several reports have shown the influence of different factors such as grain size, type and amount of binder phase and the addition of hard particles on the properties of WC-Co. The pur...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2004-09-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000300012 |
| _version_ | 1828328086415867904 |
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| author | Wilson Acchar Cordt Zollfrank Peter Greil |
| author_facet | Wilson Acchar Cordt Zollfrank Peter Greil |
| author_sort | Wilson Acchar |
| collection | DOAJ |
| description | Cemented carbides such as tungsten carbide-cobalt WC-Co composites have been widely used as cutting tool materials. Several reports have shown the influence of different factors such as grain size, type and amount of binder phase and the addition of hard particles on the properties of WC-Co. The purpose of this work was to investigate the effect of niobium carbide on the microstructure and mechanical properties of WC-Co. Specimens of WC-Co reinforced with NbC were mixed and subsequently hot-pressed in a inert atmosphere. The WC-Co-NbC composite material exhibited high hardness values (18.9 GPa), flexural strength (2100 MPa) and fracture toughness (11.2 MPa.m½ ). TEM analysis has shown a bimodal grain size distribution of WC. |
| first_indexed | 2024-04-13T20:04:12Z |
| format | Article |
| id | doaj.art-983e0ba7c3984da98387737d26d9e1cc |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-13T20:04:12Z |
| publishDate | 2004-09-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-983e0ba7c3984da98387737d26d9e1cc2022-12-22T02:32:05ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392004-09-017344545010.1590/S1516-14392004000300012Microstructure and mechanical properties of WC-Co reinforced with NbCWilson AccharCordt ZollfrankPeter GreilCemented carbides such as tungsten carbide-cobalt WC-Co composites have been widely used as cutting tool materials. Several reports have shown the influence of different factors such as grain size, type and amount of binder phase and the addition of hard particles on the properties of WC-Co. The purpose of this work was to investigate the effect of niobium carbide on the microstructure and mechanical properties of WC-Co. Specimens of WC-Co reinforced with NbC were mixed and subsequently hot-pressed in a inert atmosphere. The WC-Co-NbC composite material exhibited high hardness values (18.9 GPa), flexural strength (2100 MPa) and fracture toughness (11.2 MPa.m½ ). TEM analysis has shown a bimodal grain size distribution of WC.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000300012tungsten carbidehardnessfracture toughnessniobium carbidemicrostructure |
| spellingShingle | Wilson Acchar Cordt Zollfrank Peter Greil Microstructure and mechanical properties of WC-Co reinforced with NbC Materials Research tungsten carbide hardness fracture toughness niobium carbide microstructure |
| title | Microstructure and mechanical properties of WC-Co reinforced with NbC |
| title_full | Microstructure and mechanical properties of WC-Co reinforced with NbC |
| title_fullStr | Microstructure and mechanical properties of WC-Co reinforced with NbC |
| title_full_unstemmed | Microstructure and mechanical properties of WC-Co reinforced with NbC |
| title_short | Microstructure and mechanical properties of WC-Co reinforced with NbC |
| title_sort | microstructure and mechanical properties of wc co reinforced with nbc |
| topic | tungsten carbide hardness fracture toughness niobium carbide microstructure |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000300012 |
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