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http://repository.ipb.ac.id/handle/123456789/114524
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DC Field | Value | Language |
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dc.contributor.advisor | Sjahriza, Ahmad | - |
dc.contributor.advisor | Saprudin, Deden | - |
dc.contributor.author | Asisah, Nur | - |
dc.date.accessioned | 2022-09-16T06:16:29Z | - |
dc.date.available | 2022-09-16T06:16:29Z | - |
dc.date.issued | 2022 | - |
dc.identifier.uri | http://repository.ipb.ac.id/handle/123456789/114524 | - |
dc.description.abstract | Baja merupakan logam yang banyak digunakan dalam industri perakitan dan konstruksi. Pelapisan seng pada baja diperlukan untuk memenuhi sifat fisik tahan korosi dan ketebalan yang sesuai kebutuhan industri. Perlakuan chromating pada proses pelapisan yang menggunakan kromium heksavalen dapat bersifat toksik sehingga harus direduksi menjadi kromium trivalen menggunakan bahan organik pereduksi. Penelitian ini bertujuan mengetahui pengaruh konsentrasi dan waktu pencelupan pada tahapan chromating terhadap laju korosi dan ketebalan lapisan seng pada baja. Penelitian dilakukan dalam larutan kromium dengan variasi konsentrasi 5; 10; 15 mL/L serta variasi waktu 10 dan 60 detik. Larutan kromium dibuat dari beberapa jenis sumber kromium yang berbeda, yaitu H2CrO4, Na2CrO4, K2Cr2O7. Ketebalan baja diukur dengan mikrometer sekrup digital dan pengukuran laju korosi menggunakan metode kehilangan berat. Hasil modifikasi terbaik ditunjukkan oleh spesimen yang dicelupkan pada larutan kromium trivalen 15 mL/L dari K2Cr2O7 dengan waktu 60 detik. Ketebalan yang dihasilkan adalah 0,0025 mm dengan laju korosi 0,0063 mm/tahun. | id |
dc.description.abstract | Steel is a metal that is widely used in the manufacturing and construction industries. Zinc coating on steel is required to fulfill the physical properties of corrosion resistance and thickness suitable for industrial needs. The chromating treatment in the coating process using hexavalent chromium can be toxic, therefore it must be reduced to trivalent chromium by using reducing organic matter to avoid the negative impact. This study aims to determine the effect of concentration and immersion time in the chromating stage on the corrosion rate and the thickness of the zinc layer on the steel. This research was conducted in a chromium solution with concentration variation of 5; 10; 15 mL/L and time variations of 10 and 60 seconds. There are several chromium sources that used in this research, i.e H2CrO4, Na2CrO4, and K2Cr2O7. Thickness was measured with a digital screw micrometer and corrosion rate was measured using the weight loss method. The best modification results were shown by a specimen that was dipped in a 15 mL/L trivalent chromium solution of K2Cr2O7 for a time of 60 seconds. The resulting thickness is 0,0025 mm with a corrosion rate of 0,0063 mm/year. | id |
dc.language.iso | id | id |
dc.publisher | IPB University | id |
dc.title | Modifikasi Pelapisan Seng pada Baja dengan Chromating Trivalent menggunakan Bahan Organik Pereduksi | id |
dc.type | Undergraduate Thesis | id |
dc.subject.keyword | chromating | id |
dc.subject.keyword | corrosion | id |
dc.subject.keyword | steel | id |
dc.subject.keyword | trivalent chrome | id |
dc.subject.keyword | zinc plating | id |
Appears in Collections: | UT - Chemistry |
Files in This Item:
File | Description | Size | Format | |
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Cover, Lembar Pengesahan, Prakata, Daftar Isi.pdf Restricted Access | Cover | 390.85 kB | Adobe PDF | View/Open |
G44180074_Nur Asisah.pdf Restricted Access | Fullteks | 699.68 kB | Adobe PDF | View/Open |
Lampiran.pdf Restricted Access | Lampiran | 192.69 kB | Adobe PDF | View/Open |
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