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Evi Ulina Margaretha Situmorang
Departemen Fisiologi-Fisika, Fakultas Kedokteran Dan Ilmu Kesehatan, Universitas Katolik Indonesia Atma Jaya, Jakarta
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health

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Structural, Electrochemical, Bacterial Activity, Hardness, and Thermal Properties of Mg Alloy with Various Zn Contents Premono, Agung; Basori, Imam; Sukarno, Ragil; Susetyo, Ferry Budhi; Alhamidi, A. Ali; Anugrah, Hanif Setia; Muqafillah, Mochammad Fajr Dzakwan; Yudanto, Sigit Dwi; Hasbi, Muhammad Yunan; Situmorang, Evi Ulina Margareta; Edbert, Daniel; Mutiara, Etty; Kriswarini, Rosika; Jamaludin, Agus; Ajiriyanto, Maman Kartaman; Rosyidan, Cahaya
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.96-108

Abstract

Magnesium (Mg) alloy is used for various medical purposes, such as bone implants. In the present study, MgAlSixZn alloys were created utilizing the gravity casting by adding various Zinc (Zn) (x is 0, 0.5, 1.2, and 1.7 wt.%) and then homogenized at 400 ◦C for around two hours. MgAlSixZn as homogenized samples were investigated for microstructure, phase structure, electrochemical behavior, surface morphology, bacterial activity, hardness, and thermal behavior using an optical microscope, XRD, Potentiostat, SEM-EDS, digital camera, Vickers hardness test, and Thermogravimetric apparatus, respectively. Several findings include that increasing Zn content implies a grain growth inhibition mechanism facilitated by Zn segregation at grain boundaries, increased corrosion rates, a rise in the hardness, and increased weight loss. It should be noted that the increase in the corrosion rate and weight loss occurs linearly for Zn addition in the Mg alloy until 1.2 wt.%. An increase in Zn concentration causes the peak shift in MgAlSi-based alloy samples, but no crystallographic orientation is apparent. At the end, the highest corrosion rate and inhibition area are observed in MgAlSi1.2Zn, which indicates that it is suitable for biodegradable orthopedic wire.
Co-Authors Agus Jamaludin Agus Jamaludin Alhamidi, A. Ali Alias, Juliawati Anugrah, Hanif Setia Ardelina C Hartanto Aristo, Emanuel Jovan Arnold Ferdy Yanto Audrey Jessica Jusran Bambang Soegijono Basori Basori Basori Budiyanti, Ecie Cahaya Rosyidan Cliffton, Cliffton Daniel Edbert, Daniel Divara Ariesta Sekar Suryadi, Made Dwi Nanto, Dwi Edward Surjono, Edward Etty Mutiara Evans, Gunterus Evans, Guterus Fan, Tan Fei Ferry Budhi Susetyo Freggy S. Joprang Hasbi, Muhammad Yunan Heidy Heidy Heri Hardiyanti Imam Basori Jojor Lamsihar Manalu Jonny Setiawan Joprang, Freggy Spicano Julia Rahadian Kurniawan, Sandy Vitria Laurentius Aswin Pramono Linawati Hananta, Linawati Lonah, Lonah Maman Kartaman Ajiriyanto Mansor, Muhd Ridzuan Maria Dara Novi Handayani, Maria Dara Novi Mariani Santosa, Mariani Mora Octavia Mora Octavia Mora Octavia Muhaji, J. Antonio Muqafillah, Mochammad Fajr Dzakwan Nathaniel, Bryan Nawanto Agung Prastowo Pakpahan, Hotmaria Agustina Paul, Clara Stephanie Prasetya, Dendy Wardhana Premono, Agung Rika Haryono Rita Dewi Rita Dewi Dewi Rosika Kriswarini Ruliyanta Ruliyanta Setia Budi Sudiyono, Nelson Sukarno, Ragil Surianggo, Jenita Syamsuir, Syamsuir Tri Yulianto Usman, Hadiyanto Yantho, Erwin Yudanto, Sigit Dwi Yuliana Yuliana Yunita Sari Zita Arieselia