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Sihombing, Prada
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Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Pengaruh Elektroplating Ni-Cr terhadap Wetability dan Ketahanan Korosi Sumuran pada Baja Tahan Karat 316L dalam Media Infus 0,9% NaCl Pakpahan, Binsar Maruli Tua; Pasaribu, Muhammad Nuh Hudawi; Simatupang, Lisnawaty; Silaban, Robert; Pakpahan, Natal Toga Hot Tua; Sihombing, Prada; Sinaga, Sabas DK
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.197

Abstract

This study aims to evaluate the effect of Ni-Cr electroplating on wettability characteristics and pitting corrosion resistance of 316L stainless steel in 0.9% NaCl infusion media. The electroplating process consisted of a nickel base coating for 15 minutes, followed by chromium plating with durations ranging from 10 to 22.5 minutes. Contact angle measurements showed that Ni-Cr coating increased the contact angle from 71.25° to 86.77°, indicating a surface transformation from hydrophilic to more hydrophobic. This increase in contact angle demonstrates the effectiveness of Ni-Cr plating in enhancing the material’s resistance to liquid penetration, a critical property for biomedical applications. Corrosion tests revealed a reduction in pit count and depth after plating, suggesting a significant improvement in resistance to localised corrosion. These findings indicate that Ni-Cr electroplating significantly improves pitting corrosion resistance. This technique can be implemented to enhance the durability of 316L-based implant materials in corrosive body environments, particularly in applications where long-term biocompatibility and surface stability are essential.
Co-Authors Pakpahan, Binsar Maruli Tua Pakpahan, Natal Toga Hot Tua Pasaribu, Muhammad Nuh Hudawi Robert Silaban Simatupang, Lisnawaty Sinaga, Sabas DK