REVIEW PENGARUH VARIASI BEDA POTENSIAL TERHADAP MORFOLOGI DAN LAJU DEGRADASI DARI PADUAN MAGNESIUM YANG DIOKSIDASI DENGAN METODE PLASMA ELECTROLYTIC OXIDATION UNTUK APLIKASI BIODEGRADABLE IMPLANT

Mubarok, Muhammad Izzuddin (2020) REVIEW PENGARUH VARIASI BEDA POTENSIAL TERHADAP MORFOLOGI DAN LAJU DEGRADASI DARI PADUAN MAGNESIUM YANG DIOKSIDASI DENGAN METODE PLASMA ELECTROLYTIC OXIDATION UNTUK APLIKASI BIODEGRADABLE IMPLANT. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Paduan magnesium merupakan material maju dimana banyak digunakan untuk penelitian terhadap biodegradable implant. Karena magnesium mempunyai sifat-sifat yang mendekati tulang. Kekurangan dari magnesium adalah sifat ketahanan korosi yang kurang baik, hal ini meyebabkan mudahnya terdegradasi, sehingga perlu adanya perlakuan untuk memperbaiki kekurangan tersebut. Pada review paper ini dibahas metode rekayasa permukaan adalah Plasma Electrolytic Oxidation (PEO) dengan membentuk lapisan oksida pada permukaan logam. Lapisan yang dihasilkan memiliki ketahanan aus dan ketahanan korosi yang sangat baik serta stabilitas termal yang baik. Tujuan paper review ini untuk menganalisis pengaruh parameter proses yaitu beda potensial terhadap morfologi dan laju degradasi. Pengujian yang dilakukan adalah SEM dan uji polarisasi. Pada review paper ini didapatkan bahwa semakin tinggi potensial pada substrat saat melakukan proses PEO, ketebalan yang terbentuk akan semakin baik, dibuktikan oleh hasil pengujian SEM. Nilai dari tegangan yang tinggi membuat ukuran pori-pori semakin besar, sehingga kurang baik dari segi ukuran pori.. Kenaikan tegangan dapat menurunkan nilai Icorr sehingga corrosion rate-nya juga menurun ================================================================================================================== Magnesium alloy is an advanced material in which research concerning this topic has been widely conducted. It is because Magnesium has properties that are close to the bone. Unfortunately, the disadvantage of magnesium is its poor corrosion resistance so that it is easily degraded and less proper for implant application. Therefore, it is necessary to do a coating with certain potential to get better mechanical properties. This review discussed Plasma Electrolytic Oxidation (PEO) coating method as it can form oxide layers on metal surfaces. The resulting coating has excellent degradation and corrosion resistance as well as good electrical parameters and thermal stability. This paper aims to analyze the effect of potential differences in corrosion resistance and morphology with SEM for morphology and polarization for degradation rates. The purpose of this review paper is to analyze the effect of potential differences on morphology and degradation rates, the tests carried out are SEM and polarization. In this paper review that the higher the potential for the substrate when performing the PEO method, the SEM formed, the better thickness is formed. The impact of the high stress makes the size of the pores bigger,so this is not good in terms of pore size. And for a good degradation rate, where an increase in voltage can reduce Icorr so that it affects corrosion rate

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Kata Kunci: Paduan Magnesium, PEO, Biodegradable Implant, Laju degradasi, Beda Potensial ================================================================================================================== Keywords: Magnesium Alloy, PEO, Biodegradable Implant, Degradation Rate, Potential Differences
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA418.75 Corrosion-resistant materials
T Technology > TA Engineering (General). Civil engineering (General) > TA418.9.C57 Coatings
T Technology > TA Engineering (General). Civil engineering (General) > TA491 Metal coating.
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Muhammad Izzuddin Mubarok
Date Deposited: 13 Aug 2020 07:41
Last Modified: 13 Aug 2020 07:42
URI: http://repository.its.ac.id/id/eprint/77939

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