PEMANFAATAN BIOMASSA SEBAGAI INHIBITOR ORGANIK PADA BAJA AISI 1020 DI UNIVERSITAS LAMPUNG
| Main Author: | RIZKY DAMAYANTI , 1417041074 |
|---|---|
| Format: | Bachelors NonPeerReviewed Book Report |
| Terbitan: |
FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM
, 2019
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| Subjects: | |
| Online Access: |
http://digilib.unila.ac.id/58098/1/ABSTRAK.pdf http://digilib.unila.ac.id/58098/2/SKRIPSI%20FULL.pdf http://digilib.unila.ac.id/58098/3/SKRIPSI%20TANPA%20BAB%20PEMBAHASAN.pdf http://digilib.unila.ac.id/58098/ |
Daftar Isi:
- Abstrak. Penelitian pemanfaatan biomassa sebagai inhibitor organik pada baja AISI 1020 di Universitas Lampung penelitian ini ditujukan untuk mengetahui sampel baja karbon AISI 1020 yang direndam dalam medium korosif HCl 3% tanpa diberi dan dengan diberi inhibitor ekstrak daun Pithecellobium lobatum (jengkol), Syzygium polyanthum (salam), Terminalia catappa (ketapang) dan Mango foliorum (mangga) 8 ml selama 4 dan 7 hari. Perhitungan penurunan laju korosi dilakukan dengan metode kehilangan berat. Hasil penelitian menunjukkan bahwa penambahan inhibitor biomasaa efektif dalam menurunkan laju korosi sampel dengan efisiensi terbesar pada perendaman daun ketapang 7 hari, yaitu sebesar 74,22%. Analisis XRD memperlihatkan bahwa fasa yang terbentuk adalah Fe dan Fe2O3 pada sampel yang di lapisi inhibitor dan pada sampel yang direndam tanpa inhibitor fasa Fe2O3 yang merupakan produk korosi. Analisis SEM menunjukkan mikro struktur permukaan sampel setelah direndam Inhiblitor terdapat Lapisan-lapisan tipis melapisi baja pada sampel tidak di lapisi inhibitor terlihat jelas retakan dan lubang yang mengindikasikan bahwa sampel telah mengalami korosi. Kata kunci. Baja karbon AISI 1020, biomassa, laju korosi, struktur morfologi. ABSTRACT Abstract. Research on the use of biomass as an organic inhibitor in AISI 1020 steel at the University of Lampung was aimed at finding out the carbon steel samples of AISI 1020 which were immersed in 3% corrosive medium HCl without being given and given inhibitors of 8 ml leaf Pithecellobium lobatum (jengkol), Syzygium polyanthum (salam), Terminalia catappa (ketapang) dan Mango foliorum (mangga) for 4 and 7 days. Calculation of reduction in corrosion rate is carried out by the method of weight loss. The results showed that the addition of biomass inhibitors was effective in reducing the corrosion rate of the sample with the greatest efficiency on soaking ketapang leaves 7 days, that is equal to 74.22%. XRD analysis shows that the phase formed is Fe and Fe2O3 in samples coated with inhibitors and in samples immersed without Fe2O3 phase inhibitors which are corrosion products. SEM analysis showed the microstructure of the surface of the sample after immersion in inhibitors; there were thin layers lining the steel in samples not coated with inhibitors, clearly cracks and holes indicating that the sample had been corrosion. Key words. Carbon steel AISI 1020, biomass, corrosion rate, structure morphology.