Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys
In the present study binary Mg-xCa (x=0.5 and 1.25wt.%) and ternary Mg-1Ca-xZn (x=0.5 and 1.5wt.%) alloys are produced by casting the molten metal in a metal die at a temperature of 740°C. The microstructure analysis of the Mg-Ca and Mg-Ca-Zn alloys were studied by OM, SEM and EDX. The corrosion beh...
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| Format: | Article |
| Language: | English |
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2012
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| Online Access: | http://eprints.utm.my/46681/1/H.%20R.%20Bakhsheshi%20Rad_2012_Characterization%20and%20Corrosion%20Behavior%20of%20Biodegradable%20Mg-Ca%20and%20Mg-Ca-Zn%20Implant%20Alloys.pdf |
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| author | Bakhsheshi Rad, Hamid Reza Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Farahany, Saeed Fereidouni, Amir Yahya, Mohd. Yazid |
| author_facet | Bakhsheshi Rad, Hamid Reza Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Farahany, Saeed Fereidouni, Amir Yahya, Mohd. Yazid |
| author_sort | Bakhsheshi Rad, Hamid Reza |
| collection | ePrints |
| description | In the present study binary Mg-xCa (x=0.5 and 1.25wt.%) and ternary Mg-1Ca-xZn (x=0.5 and 1.5wt.%) alloys are produced by casting the molten metal in a metal die at a temperature of 740°C. The microstructure analysis of the Mg-Ca and Mg-Ca-Zn alloys were studied by OM, SEM and EDX. The corrosion behavior of alloys was evaluated via potentiodynamic polarization test in Kokubo solution. The result exhibited that the grain size decrease with rising Ca content in Mg-Ca alloys and degree of grain size reduction further decreased by adding Zn to Mg-1Ca-Zn alloys. The microstructure of Mg-Ca alloys were constituted of primary Mg and lamellar eutectic (α-Mg+Mg2Ca) phase, Whilst Mg–1Ca-Zn alloys were composed of primary Mg and eutectic (α-Mg+Mg2Ca+Ca2Mg6Zn3) phases. In addition with increasing Ca and Zn the amount of Mg2Ca and Ca2Mg6Zn3 increased respectively in grain boundaries. Electrochemical test shows that the addition of Zn leads to improve corrosion resistance of the Mg–1Ca-Zn alloys as a result of the formation of Ca2Mg6Zn3 phase, whilst the addition of more than 0.5 wt% Ca to Mg-Ca alloys result in decrease corrosion resistance due to the formation Mg2Ca. |
| first_indexed | 2024-03-05T19:20:44Z |
| format | Article |
| id | utm.eprints-46681 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T19:20:44Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | utm.eprints-466812017-09-18T03:26:54Z http://eprints.utm.my/46681/ Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys Bakhsheshi Rad, Hamid Reza Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Farahany, Saeed Fereidouni, Amir Yahya, Mohd. Yazid TJ Mechanical engineering and machinery In the present study binary Mg-xCa (x=0.5 and 1.25wt.%) and ternary Mg-1Ca-xZn (x=0.5 and 1.5wt.%) alloys are produced by casting the molten metal in a metal die at a temperature of 740°C. The microstructure analysis of the Mg-Ca and Mg-Ca-Zn alloys were studied by OM, SEM and EDX. The corrosion behavior of alloys was evaluated via potentiodynamic polarization test in Kokubo solution. The result exhibited that the grain size decrease with rising Ca content in Mg-Ca alloys and degree of grain size reduction further decreased by adding Zn to Mg-1Ca-Zn alloys. The microstructure of Mg-Ca alloys were constituted of primary Mg and lamellar eutectic (α-Mg+Mg2Ca) phase, Whilst Mg–1Ca-Zn alloys were composed of primary Mg and eutectic (α-Mg+Mg2Ca+Ca2Mg6Zn3) phases. In addition with increasing Ca and Zn the amount of Mg2Ca and Ca2Mg6Zn3 increased respectively in grain boundaries. Electrochemical test shows that the addition of Zn leads to improve corrosion resistance of the Mg–1Ca-Zn alloys as a result of the formation of Ca2Mg6Zn3 phase, whilst the addition of more than 0.5 wt% Ca to Mg-Ca alloys result in decrease corrosion resistance due to the formation Mg2Ca. 2012 Article PeerReviewed application/pdf en http://eprints.utm.my/46681/1/H.%20R.%20Bakhsheshi%20Rad_2012_Characterization%20and%20Corrosion%20Behavior%20of%20Biodegradable%20Mg-Ca%20and%20Mg-Ca-Zn%20Implant%20Alloys.pdf Bakhsheshi Rad, Hamid Reza and Idris, Mohd. Hasbullah and Abdul Kadir, Mohammed Rafiq and Farahany, Saeed and Fereidouni, Amir and Yahya, Mohd. Yazid (2012) Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys. Applied Mechanics And Materials, 121-12 . pp. 568-572. ISSN 1660-9336 http://dx.doi.org/10.1016/10.4028/www.scientific.net/AMM.121-126.568 10.4028/www.scientific.net/AMM.121-126.568 |
| spellingShingle | TJ Mechanical engineering and machinery Bakhsheshi Rad, Hamid Reza Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Farahany, Saeed Fereidouni, Amir Yahya, Mohd. Yazid Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys |
| title | Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys |
| title_full | Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys |
| title_fullStr | Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys |
| title_full_unstemmed | Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys |
| title_short | Characterization and corrosion behavior of biodegradable Mg-Ca and Mg-Ca-Zn implant alloys |
| title_sort | characterization and corrosion behavior of biodegradable mg ca and mg ca zn implant alloys |
| topic | TJ Mechanical engineering and machinery |
| url | http://eprints.utm.my/46681/1/H.%20R.%20Bakhsheshi%20Rad_2012_Characterization%20and%20Corrosion%20Behavior%20of%20Biodegradable%20Mg-Ca%20and%20Mg-Ca-Zn%20Implant%20Alloys.pdf |
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