1Department of Mechanical Engineering, Universitas Pertamina, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12220, Indonesia
2Department of Chemical Engineering, Universitas Pertamina, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12220, Indonesia
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@article{JKSA67169, author = {Sri Hastuty and Fayza Yulia and Nonni Soraya Sambudi and Alfian Kahfi Fauzi and Fatwa Khoirrun Nadhor}, title = {Improvement of Pitting Corrosion Resistance in Type 201 Stainless Steel by Electrochemical Method in Nitric Acid Solution}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {28}, number = {4}, year = {2025}, keywords = {Pitting Corrosion; Stainless Steel 201; Surface Treatment; Cyclic Voltammetry; Nitric Acid}, abstract = {Stainless steel is widely utilized across industries due to its robust resistance to corrosion. Stainless Steel 201 (SS201), characterized by a lower nickel content compared to grade 304, is valued for its cost-effectiveness and strong mechanical properties. However, SS201 is more prone to pitting corrosion in aggressive environments than SS304. This research aims to enhance SS201’s resistance to pitting corrosion through surface treatment involving nitric acid. Cyclic voltammetry was conducted using nitric acid concentrations of 1, 2, and 3 M. The findings indicate that higher concentrations of nitric acid improved corrosion resistance, with 3 M resulting in a pitting depth of 23.667 μm. The application of citric acid contributed to enhanced resistance against pitting corrosion by fostering a chromium-rich surface.}, issn = {2597-9914}, pages = {208--214} doi = {10.14710/jksa.28.4.208-214}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/67169} }
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