Imam Basori, Yunita Sari, Dendy Wardhana Prasetya, Ferry Budhi Susetyo, Juliawati Alias, Setia Budi, Sigit Dwi Yudanto, Muhammad Yunan Hasbi, Evi Ulina Margareta Situmorang, Daniel Edbert
CuZn alloy is widely used as a heat exchanger pipe and also for cardiovascular implant applications. Several problems have been found in that alloy, such as less corrosion resistance. Therefore, various Sn (0.2, 0.7, 1, and 2 wt.%) were added to Cu-15Zn alloy in the present research to enhance corrosion resistance. Afterwards, the alloy was homogenized at 800◦ C for 2 hours. Several investigations were conducted, such as structure, microstructure, hardness, corrosion resistance, bacterial activity, and thermal analysis using XRD, optical microscope, Vickers hardness, potentiostat, digital camera, and thermogravimetric analyzer, respectively. More Sn content leads to an increase in volume and a decrease in hardness. Presenting Sn in the alloy does not influence the phase in the alloy microstructure. The highest Sn content in the alloy promoted a more positive value of the alloy, indicating that the sample is more cathodic, probably due to the protective layer on the surface. A concentration of 1 wt.% Sn exhibits the most effective antibacterial effect probably due to the small crystallite size. Shifting to a higher temperature increased the samples weight, indicating oxides formed on the samples surface. © 2025, Magister Program of Material Sciences, Graduate School of Sriwijaya University. All rights reserved.
Department of Mechanical Engineering, Universitas Negeri Jakarta, Jakarta Timur, 13220, Indonesia; Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Kuantan, 26300, Malaysia; Department of Chemistry, Universitas Negeri Jakarta, Jakarta Timur, 13220, Indonesia; Research Center for Metallurgy, National Research and Innovation Agency, KST BJ Habibie South Tangerang, Banten, 15314, Indonesia; Department of Physiology, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, 14440, Indonesia; Department of Microbiology, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, 14440, Indonesia
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