Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding
Cobalt alloys are widely used in biomedicine, implantology, and dentistry due to their high corrosion resistance and good mechanical properties. The high carbon improves the wear properties, but causes fragility and dangerous cracking of elements during use. The aim of the present work was to analyz...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/3/197 |
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| author | Anna Ziębowicz Krzysztof Matus Wojciech Pakieła Grzegorz Matula Miroslawa Pawlyta |
| author_facet | Anna Ziębowicz Krzysztof Matus Wojciech Pakieła Grzegorz Matula Miroslawa Pawlyta |
| author_sort | Anna Ziębowicz |
| collection | DOAJ |
| description | Cobalt alloys are widely used in biomedicine, implantology, and dentistry due to their high corrosion resistance and good mechanical properties. The high carbon improves the wear properties, but causes fragility and dangerous cracking of elements during use. The aim of the present work was to analyze and compare the structure and wear resistance of Co-based alloy samples with low carbon content, produced by Selective Laser Sintering (SLS) and Powder Injection Molding (PIM). Structure characterization, mainly with the use of transmission electron microscopy, was applied to investigate the differences in tribological properties. The better resistance to abrasive wear for SLS was explained by the presence of a hard, intermetallic phase, present as precipitates limited in size and evenly distributed in the cobalt matrix. The second factor was the structure of the cobalt matrix, with dominant content of the hexagonal phase. By combining the characteristic features of the matrix and the reinforcing phase, the analyzed material gains an additional advantage, namely a higher resistance to abrasive wear. |
| first_indexed | 2024-12-10T07:32:09Z |
| format | Article |
| id | doaj.art-c8b67c6b444247839756917c70f6c82c |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-12-10T07:32:09Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-c8b67c6b444247839756917c70f6c82c2022-12-22T01:57:33ZengMDPI AGCrystals2073-43522020-03-0110319710.3390/cryst10030197cryst10030197Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection MoldingAnna Ziębowicz0Krzysztof Matus1Wojciech Pakieła2Grzegorz Matula3Miroslawa Pawlyta4Department of Biomaterials and Medical Devices Engineering, Silesian University of Technology, Roosevelt 40 St., 41-800 Zabrze, PolandDepartment of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, PolandDepartment of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, PolandDepartment of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, PolandDepartment of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, PolandCobalt alloys are widely used in biomedicine, implantology, and dentistry due to their high corrosion resistance and good mechanical properties. The high carbon improves the wear properties, but causes fragility and dangerous cracking of elements during use. The aim of the present work was to analyze and compare the structure and wear resistance of Co-based alloy samples with low carbon content, produced by Selective Laser Sintering (SLS) and Powder Injection Molding (PIM). Structure characterization, mainly with the use of transmission electron microscopy, was applied to investigate the differences in tribological properties. The better resistance to abrasive wear for SLS was explained by the presence of a hard, intermetallic phase, present as precipitates limited in size and evenly distributed in the cobalt matrix. The second factor was the structure of the cobalt matrix, with dominant content of the hexagonal phase. By combining the characteristic features of the matrix and the reinforcing phase, the analyzed material gains an additional advantage, namely a higher resistance to abrasive wear.https://www.mdpi.com/2073-4352/10/3/197co-based alloytribological propertieswearmicrostructureselective laser sintering (sls)powder injection molding (pim) |
| spellingShingle | Anna Ziębowicz Krzysztof Matus Wojciech Pakieła Grzegorz Matula Miroslawa Pawlyta Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding Crystals co-based alloy tribological properties wear microstructure selective laser sintering (sls) powder injection molding (pim) |
| title | Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding |
| title_full | Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding |
| title_fullStr | Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding |
| title_full_unstemmed | Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding |
| title_short | Comparison of the Crystal Structure and Wear Resistance of Co-Based Alloys with Low Carbon Content Manufactured by Selective Laser Sintering and Powder Injection Molding |
| title_sort | comparison of the crystal structure and wear resistance of co based alloys with low carbon content manufactured by selective laser sintering and powder injection molding |
| topic | co-based alloy tribological properties wear microstructure selective laser sintering (sls) powder injection molding (pim) |
| url | https://www.mdpi.com/2073-4352/10/3/197 |
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