Ginanjar, Surya (2016) Studi Ketahanan Korosi Dan Kerentanan Terhadap Pitting Corrosion Paduan Alluminium Hasil Pengerolan Dingin. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Aluminium merupakan salah satu material penting yang
banyak digunakan dalam dunia teknologi terutama dalam
industri penerbangan. Aluminium memiliki sifat yang ringan,
konduktivitas panas dan listrik yang tinggi dan memiliki
ketahanan terhadap korosi. Namun aluminium dalam keadaan
murni memiliki sifat mekanik yang rendah, sehingga harus
dipadukan dengan unsur lain. Pemaduan ini, pada kondisi
tertentu, bisa menimbulkan kerentanan aluminium terhadap
korosi.
Pada tugas akhir ini akan dilakukan studi eksperimen
tetang Pitting Corrosion (korosi sumuran) dan analisis ketahanan
korosi pada plat paduan aluminium hasil pengerolan dingin
dengan reduksi ketebalan pengerolan plat aluminium
divariasikan dari 0% sampai 50% dari ketebalan awal plat 4 mm.
Spesimen dengan ukuran 10 mm x 10 mm x 2 mm direndam
dalam larutan NaOH dalam waktu tertentu. Fenomena pitting
corrosion diamati dengan melihat timbulnya Pitting (lubang)
pada permukaan yang mengalami korosi. Pengujian ketahanan
korosi dilakukan dengan membandingkan kehilangan berat dari
spesimen sebelum dan sesudah proses perendaman dalam larutan
NaOH pada waktu tertentu.
Dari eksperimen yang telah dilakukan diperoleh data
bahwa aluminium paduan hasil pengerolan dingin memiliki
ketahanan korosi yang lebih rendah dan lebih rentan terhadap
pitting corrosion.
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Aluminium is one of the important material that is widely
used in the world of technology, especially in the aviation
industry. Aluminium has light properties, thermal and electrical
conductivity is high, and has a corrosion resistance. But in pure
situation,aluminum has a low mechanical properties, so it must be
combined with other element. This integration, in certain
condition, can lead the aluminium susceptible to corrosion.
In this final task, will be performed experimental studies
on Pitting Corrosion and corrosion resistance analysis on the
results of the aluminium composite plate cold rolling with a
reduction in the thickness of the aluminium plate rolling varied
from 0% to 50% of the initial thickness of 4 mm plate. Specimens
with a size of 10 mm x 10 mm x 2 mm was soaked in a solution
of NaOH in certain time. The phenomenon of Pitting Corrosion
was observed by looking at the incidence of pitting (holes) on the
surface of which is subject to corrosion. Corrosion resistance
testing is done by comparing the weight loss of the specimen
before and after immersion in a solution of NaOH at a particular
time.
Of the experiments that have been conducted data showed
that aluminium composite cold rolling results has lower corrosion
resistance and more susceptible to Pitting Corrosion.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 620.112 23 Gin s |
| Uncontrolled Keywords: | Aluminium; pengerolan dingin; ketahanan korosi; pitting corrosion; cold rolling; corrosion resistance |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Anis Wulandari |
| Date Deposited: | 09 Jun 2017 04:31 |
| Last Modified: | 26 Dec 2018 08:23 |
| URI: | http://repository.its.ac.id/id/eprint/41564 |
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