Influence of thermal treatment on microstructure, mechanical and degradation properties of Zn-3Mg alloy as potential biodegradable implant material
© 2015 Elsevier Ltd. In this study, the influence of homogenisation heat treatment effect on Zn-3Mg alloy proposed for biodegradable bone implants was investigated. The alloy was developed via casting process from high purity raw materials and homogenised at 360°C for 15h followed by water quenching...
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| Format: | Journal Article |
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Elsevier
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/67640 |
| _version_ | 1848761619265355776 |
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| author | Dambatta, M. Izman, S. Kurniawan, Denni Farahany, S. Yahaya, B. Hermawan, H. |
| author_facet | Dambatta, M. Izman, S. Kurniawan, Denni Farahany, S. Yahaya, B. Hermawan, H. |
| author_sort | Dambatta, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2015 Elsevier Ltd. In this study, the influence of homogenisation heat treatment effect on Zn-3Mg alloy proposed for biodegradable bone implants was investigated. The alloy was developed via casting process from high purity raw materials and homogenised at 360°C for 15h followed by water quenching. Results revealed that the microstructure of as cast alloy was composed of dendritic structure of Zn-rich phase distributed in segregated pattern within Mg < inf > 2 < /inf > Zn < inf > 11 < /inf > eutectic phase. Exposure to the long duration heating of homogenisation apparently broke the dendrites and transformed them into connected precipitates within the alloy's matrix. Non-equilibrium thermal analysis revealed the formation of Mg < inf > 2 < /inf > Zn < inf > 11 < /inf > eutectic phase which nucleated at 367°C and solidified completely at 354°C. The eutectic coherency point occurred at 368°C and 424s when 30% of solid has precipitated during solidification. Homogenisation resulted into lowering the alloy's tensile strength from 104MPa to 88MPa but improving elongation at fracture from 2.3% to 8.8%. The homogenised Zn-3Mg alloy showed improved corrosion resistance (corrosion rate=0.13mmpy) compared to the as-cast one (corrosion rate=0.21mmpy). The mechanical property and corrosion behaviour of the homogenised alloy seem suitable for biodegradable implant applications. |
| first_indexed | 2025-11-14T10:34:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-67640 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:34:33Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-676402018-05-18T08:05:51Z Influence of thermal treatment on microstructure, mechanical and degradation properties of Zn-3Mg alloy as potential biodegradable implant material Dambatta, M. Izman, S. Kurniawan, Denni Farahany, S. Yahaya, B. Hermawan, H. © 2015 Elsevier Ltd. In this study, the influence of homogenisation heat treatment effect on Zn-3Mg alloy proposed for biodegradable bone implants was investigated. The alloy was developed via casting process from high purity raw materials and homogenised at 360°C for 15h followed by water quenching. Results revealed that the microstructure of as cast alloy was composed of dendritic structure of Zn-rich phase distributed in segregated pattern within Mg < inf > 2 < /inf > Zn < inf > 11 < /inf > eutectic phase. Exposure to the long duration heating of homogenisation apparently broke the dendrites and transformed them into connected precipitates within the alloy's matrix. Non-equilibrium thermal analysis revealed the formation of Mg < inf > 2 < /inf > Zn < inf > 11 < /inf > eutectic phase which nucleated at 367°C and solidified completely at 354°C. The eutectic coherency point occurred at 368°C and 424s when 30% of solid has precipitated during solidification. Homogenisation resulted into lowering the alloy's tensile strength from 104MPa to 88MPa but improving elongation at fracture from 2.3% to 8.8%. The homogenised Zn-3Mg alloy showed improved corrosion resistance (corrosion rate=0.13mmpy) compared to the as-cast one (corrosion rate=0.21mmpy). The mechanical property and corrosion behaviour of the homogenised alloy seem suitable for biodegradable implant applications. 2015 Journal Article http://hdl.handle.net/20.500.11937/67640 10.1016/j.matdes.2015.06.181 Elsevier restricted |
| spellingShingle | Dambatta, M. Izman, S. Kurniawan, Denni Farahany, S. Yahaya, B. Hermawan, H. Influence of thermal treatment on microstructure, mechanical and degradation properties of Zn-3Mg alloy as potential biodegradable implant material |
| title | Influence of thermal treatment on microstructure, mechanical and degradation properties of Zn-3Mg alloy as potential biodegradable implant material |
| title_full | Influence of thermal treatment on microstructure, mechanical and degradation properties of Zn-3Mg alloy as potential biodegradable implant material |
| title_fullStr | Influence of thermal treatment on microstructure, mechanical and degradation properties of Zn-3Mg alloy as potential biodegradable implant material |
| title_full_unstemmed | Influence of thermal treatment on microstructure, mechanical and degradation properties of Zn-3Mg alloy as potential biodegradable implant material |
| title_short | Influence of thermal treatment on microstructure, mechanical and degradation properties of Zn-3Mg alloy as potential biodegradable implant material |
| title_sort | influence of thermal treatment on microstructure, mechanical and degradation properties of zn-3mg alloy as potential biodegradable implant material |
| url | http://hdl.handle.net/20.500.11937/67640 |