Detail Cantuman

Pengaruh Penambahan Inhibitor Ekstrak Daun Pepaya Terhadap Laju
Korosi Baja ASTM A36 (Studi Kasus Material Handling Pantai
Pulau Merah)
Wendy Triadji Nugroho,ST, MT Dosen Pembimbing Utama dan Aditya Wahyu
Pratama,ST, MT sebagai Dosen Pembimbing Anggota
Wawang Aruanda Musadi Nomay
Program Studi Mesin Otomotif
Jurusan Teknik
ABSTRAK
Korosi sangat mudah terjadi pada tangki ballast kapal laut karena material tangki ballast langsung berinteraksi dengan air laut yang bersifat korosif. Salah satu metode yang digunakan untuk menghambat terjadinya proses korosi adalah menggunakan inhibitor alami. Penggunaan inhibitor alami memiliki banyak keuntungan dibanding inhibitor kimia. Daun pepaya memiliki senyawa fenolik yang bisa menghambat laju korosi. Penelitian ini bertujuan untuk mengetahui pengauh luas permukaan spesimen uji terhadap laju korosi dan mengetahui nilai kekerasan pada bagian spesimen uji yang terkena kkorosi maupun yang tidak terkena korosi. Perendaman dalam inhibitor selama 1, 2 dan 3 hari. Luas permukaan spesimen uji menggunakan variasi 2,8 cm2, 9,6 cm2, dan 14 cm2. Pengujian dilakukan dengan cara merendam spesimen uji ke dalam air laut selama 21 hari. Penelitian didukung uji kekerasan untuk mengetahui nilai kekerasan spesimen uji. Hasilnya perendaman yang optimal menghambat laju korosi adalah 2 hari. Luas permukaan spesimen uji tidak berpengaruh signifikan terhadap laju korosi. Nilai kekerasan terbesar terjadi pada spesimen yang direndam 2 hari dalam inhibitor dengan nilai 248,33 Hardness Brinnel.
Kata Kunci : Korosi, Daun Pepaya, Uji Kekerasan, Luas Permukaan



Effect of Addition of Inhibitors of Papaya Leaf Extract to ASTM A36 Steel
Corrosion Rate (Case Study of Material Handling
Red Island Beach)
Wendy Triadji Nugroho,ST, MT as chief counselor and Aditya Wahyu
Pratama,ST, MT as a member counselor
Wawang Aruanda Musadi Nomay
Study Program of Automotive Machine
Engineering Department
ABSTRACT
Corrosion is very easy to occur in marine ballast tanks because ballast tank material directly interacts with corrosive sea water. One method used to inhibit the occurrence of corrosion is using natural inhibitors. The use of natural inhibitors has many advantages over chemical inhibitors. Papaya leaves have phenolic compounds that can inhibit corrosion rates. This study aims to determine the surface area of the test specimen on the corrosion rate and determine the value of hardness in the part of the test specimen exposed to corrosion or not exposed to corrosion. Immersion in inhibitors for 1, 2 and 3 days. The surface area of the test specimens using a variation of 2.8 cm2, 9.6 cm2, and 14 cm2. Testing was carried out by soaking the test specimen into sea water for 21 days. The study was supported by a hardness test to determine the hardness value of test specimens. The result of immersion that optimally inhibits corrosion rate is 2 days. The surface area of the test specimen has no significant effect on the corrosion rate. The highest hardness value occurred in specimens that were soaked for 2 days in an inhibitor with a value of 248.33 Hardness Brinnel.
Keyword: Corrosion, Papaya Leaves, Hardness Test, Surface,