Alamudi, Syarif (2016) Pengaruh Waktu Celup Proses Hot Dip Galvalum (A155%-Zn-Si) Terhadap Sifat Adhesive; Ketebalan Lapisan Dan Ketahanan Korosi Pada Baja API Grade B. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Syarat untuk setiap coating dikatakan baik mencakup
beberapa variabel yaitu ketebalan coating, kelekatannya, serta
mampu memproteksi substrat. Pada penelitian kali ini diteliti
pengaruh waktu celup terhadap ketebalan coating, kelekatan,
serta ketahanan korosi yang ada. Penelitian dilakukan dengan
menggunakan bahan substrat baja API 5L Grade B yang dilapisi
dengan paduan Al55%-Zn-1,5%Si (Galvalum). Proses coating
dilakukan dengan metode hot-dip menggunakan rentang waktu 1,
5, 9, 13 menit.Hasil dari penelitian ini lalu diuji dengan uji OES,
SEM, ketebalan (DFT), kelekatan, korosi dan XRD. Dari
penelitian didapatkan bahwa ketebalan dan kelekatan coating
berbanding lurus dengan lama waktu celup hot dip yang memiliki
nilai tertinggi masing-masing pada waktu celup 13 menit.
Sementara untuk laju korosi masih terjadi penurunann signifikan
pada waktu celup 5 menit dan setelahnya cenderung stagnan
sebesar 0,0928 mpy.
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There are some requirements for a good coating which
includes it’s thickness, adhesivity, and it’s ability to protect the
substrate. In this research, the influence of immerse time to the
coating thickness, adhesivity, and the corrosion resistance were
investigated. This research used API 5L Grade B Steel as
substrate which was coated by Al55%-Zn-Si alloy (Galvalume).
Hot-dip method was used to deposit galvalume with immerse
time 1, 5, 9, 13 minutes. After that, the coating results were tested
with OES, SEM, DFT, adhesive test, corrosion test (salt spray
method), and XRD test. Based on the results, the coating
thickness and adhesivity increase as the increasing of immerse
time and the highest values are at 13 minutes immerse time for
every variable. For the corrosion test results, the corrosion rate
decrease significantly as the increasing immerse time until 5
minutes. More than 5 minutes, the corrosion rate still decrease but
tend to be stagnant with the corrosion rate value 0.0928 mpy.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 620.112 23 Ala p 3100016067562 |
| Uncontrolled Keywords: | Hot dip Al55%-Zn, galvalum, waktu celup, baja API 5L Grade B, galvalume, Immerse time |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | - Davi Wah |
| Date Deposited: | 25 Feb 2020 07:37 |
| Last Modified: | 25 Feb 2020 07:37 |
| URI: | http://repository.its.ac.id/id/eprint/75110 |
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