Kurniawan, Indra Bayu (2017) Pengaruh Penambahan Zn Dan Tekanan kompaksi Terhadap Struktur Mikro, Sifat Mekanik Dan Laju Peluruhan Paduan Mg-Zn Untuk Aplikasi Orthopedic Devices Dengan Metode Metallurgy Serbuk. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Material Non – biodegradable masih menjadi pilihan yang menarik dalam pembuatan implan. Material ini memiliki sifat mekanik yang baik. Namun, penggunaan material non – biodegradable mempunyai kelemahan di antaranya yaitu potensi toksisitas yang besar dalam tubuh. Oleh karena itu, diperlukan material yang bersifat biodegradable sebagai pengganti material non – biodegradable dalam aplikasi implan tulang. Penggunaan magnesium based alloy sebagai material biodegradable sedang dikembangkan dalam beberapa tahun terakhir. Sampai saat ini proses manufaktur magnesium based alloy sebagai biodegradable material masih menggunakan cara konvensional (casting). Namun proses casting memiliki kelemahan dimana poros sulit untuk di atur. Oleh karena itu, pada penelitian ini digunakan proses manufaktur magnesium based alloy dengan cara powder metallurgy sebagai pembanding dari proses manufaktur casting. Pengaruh dari penambahan Zn dan tekanan kompaksi pada paduan Mg - Zn di teliti dengan pengujian XRD, metallografi, pengujian weight loss, pengujian densitas, pengujian kompresi dan pengujian kekerasan. Hasil dari penelitian menunjukkan bahwa paduan Mg – 5% Zn dengan tekanan kompaksi 450 MPa berpeluang menjadi implan biodegradable dimana memiliki nilai densitas 1,7552 gram/cm3; weight loss 3,8184 cm/tahun; kompresi 120,85 MPa; dan nilai kekerasan sebesar 44,77 HV.
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Non - Biodegradable material is widely used for implant. This materials has a good mechanichal properties. Somehow, non – biodegradable implant has disadvantages for body, for example it’s toxicity. Consequently, a biodegradable material is needed to replace the non – biodegradable implant. Recently, utilization magnesium based alloy as biodegradable material has been developed. in generally, manufacturing of biodegradable implant is casting. Casting has disadavantages, which set porous material is more difficult than powder metallurgy. Therefore, in this research the manufacturing magnesium based alloy with powder metallurgy method as comparison casting was investigated. The effect of addition Zinc and compaction pressure on microstructure, mechanical properties, and degradation rate of Mg – Zn alloys were characterized with XRD test, metallografi, weight loss test, density test, compressive test and microhardness test. The results show that Mg – 5% Zn with 450MPa compaction pressure alloy has a chance for biodegrable implant with density value 1,7552 gram / cm3; weight loss 3,8184 cm / year; compressive strength 120, 85 MPa; and hardness value 44,77 HV.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Magnesium, Biodegradable Implant, Powder Metallurgy, Orthopedic Devices |
| Subjects: | T Technology > TN Mining engineering. Metallurgy T Technology > TS Manufactures |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | INDRA BAYU KURNIAWAN |
| Date Deposited: | 10 Mar 2017 02:30 |
| Last Modified: | 05 Mar 2019 04:33 |
| URI: | http://repository.its.ac.id/id/eprint/1892 |
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