Analysis of Corrosion Rate With Addition of Pumps in Commercial Steel in Sea Water Media

Abstract

Corrosion or rusting is very common in metals is a decrease in the ability of a metal due to the environment or chemicals. Sea water is a corrosive environment for metals because it contains sodium chloride (NaCl), calcium sulfate (CaSO4), calcium carbonate (CaCO3), and dissolved oxygen (O2) which affect the corrosion process of the material. The presence of dissolved oxygen will cause the rate of corrosion in metals to increase with increasing oxygen content (O2), the solubility of oxygen in water is a function of pressure, temperature and chloride content. The process of corrosion is almost the same for all materials, especially in metals occurs slowly but surely, corrosion can cause a material to have a limited service life, where the material expected to be used for a long time turns out to have a shorter life span than the average usage life.

Pemanfaatan Ekstrak Biji Feun Kase (Thevetia peruviana) sebagai Inhibitor Korosi Logam Seng dalam Media HCl

“…Peristiwa korosi selalu melibatkan 2 reaksi yang berkesinambungan yakni reaksi reduksi dan oksidasi (reaksi redoks) dimana proses ini berlangsung akibat suatu logam lebih stabil berada dalam kondisi teroksidasi (terkorosi) daripada tereduksi secara termodinamika. Pada saat spesimen logam ditempatkan pada media larutan elektrolit dan korosif maka logam tersebut lebih mudah larut dalam media larutan tersebut dan permukaan logam yang mengalami kehilangan ion akan berlangsung proses redeposisi untuk menjaga sifat dari logam itu [2] . Salah satu logam yang banyak mengalami korosi adalah logam seng.…”