Putra, Febby Dwiki (2025) Analisis Laju Korosi Pada Baja ST41 Dengan Variasi Electroplating Nikel dan Media Korosif Perendaman Air Laut dan Larutan NaOH Menggunakan Uji Kekerasan dan Struktur Mikro. Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.
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Abstract
Penelitian ini bertujuan untuk mengetahui ketahanan baja ST41 terhadap uji kekerasan dan laju korosi setelah dilakukan proses electroplating nikel, serta untuk menganalisis pengaruh media korosif berupa air laut dan larutan NaOH. Baja ST41 memiliki kekuatan tinggi, kekerasan yang cukup, dan stabilitas yang baik, namun rentan terhadap korosi akibat reaksi elektrokimia, terutama pada aplikasi struktural seperti jembatan dan pipa. Proses electroplating nikel dapat meningkatkan ketahanan logam terhadap korosi dengan menciptakan lapisan pelindung pada permukaan baja. Sampel Baja ST41 yang digunakan dengan media korosif NaOH dan air laut digunakan untuk mengkorosikan Baja ST41. Penelitian ini melihat morfologi dari atas menggunakan mikroskop optik, struktur mikro, dan uji kekerasan menggunakan Rockwell. Hasil penelitian menunjukkan bahwa proses electroplating nikel efektif menghambat korosi pada baja ST41, dengan ketebalan lapisan nikel yang meningkat seiring waktu memberikan perlindungan lebih baik terhadap media korosif seperti air laut dan larutan NaOH. Baja ST41 yang melalui proses electroplating nikel menunjukkan laju korosi yang lebih rendah dibandingkan dengan baja yang tidak diperlakukan, karena lapisan nikel melindungi baja dari interaksi langsung dengan media korosif, sehingga memperlambat laju reaksi elektrokimia. Sebaliknya, baja tanpa perlakuan electroplating menunjukkan laju korosi yang lebih tinggi akibat eksposur langsung terhadap media korosif.
| Item Type: | Thesis (Undergraduate) |
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| Uncontrolled Keywords: | Kata kunci: baja ST41, laju korosi, elektroplating nikel |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Fakultas Teknik > Program Studi Teknik Mesin |
| Depositing User: | 1421800039 Febby dwiki putra |
| Date Deposited: | 15 Jun 2026 09:53 |
| Last Modified: | 15 Jun 2026 09:53 |
| URI: | http://repository.untag-sby.ac.id/id/eprint/36545 |
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