PENGARUH PENAMBAHAN INHIBITOR ORGANIK EKSTRAK DAUN BIDURI TERHADAP LAJU KOROSI BAJA S45C DALAM MEDIA AIR HUJAN

Pangestu, Aji (2025) PENGARUH PENAMBAHAN INHIBITOR ORGANIK EKSTRAK DAUN BIDURI TERHADAP LAJU KOROSI BAJA S45C DALAM MEDIA AIR HUJAN. Sarjana (S1) thesis, Universitas Islam 45.

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Abstract

Steel is one of the most widely used materials in the industrial, construction,
and automotive fields. However, this steel has a weakness, which is susceptible to
corrosion. Corrosion is a destructive process that occurs in steel. Corrosion in steel
cannot be avoided but the corrosion rate process can be slowed down by controlling
the corrosion rate (Femiana Gapsari, 2017: 4). One way to slow down the
corrosion rate is by giving inhibitors. Biduri leaves contain active compounds such
as tannins, saponins, flavonoids, and polyphenols that have potential as corrosion
inhibitors. Biduri leaf extract can be used as an organic inhibitor that can reduce
the corrosion rate of S45C steel with seawater media. Research has been carried
out with a variation of immersion time of 144 hours, 288 hours, and 436 hours by
giving a variation of inhibitor 5 ml, 10 ml, and 15 ml, also without inhibitor.
Keywords: Corrosion, Corrosion inhibitor, Biduri leaf extract.

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