TY - JOUR
T1 - Curry leaf extract (Murraya Koenigii (L.) Spreng) as a corrosion inhibitor of ASTM A36 steel in H2SO4 solution
AU - Pradityana, Atria
AU - Khosfirah, Farah
AU - Biwai, Fairiza Naghda
AU - Shidieqqy, Rizaldy Hakim Ash
AU - Hakim, Muhammad Lukman
AU - Santosa, Pramudya Imawan
AU - Wan Nik, Wan Mohd Norsani
N1 - Publisher Copyright:
© 2024 The Authors
PY - 2024/12
Y1 - 2024/12
N2 - Corrosion is a process of changing the properties of a material due to influence or reaction with the surrounding environment which tends to reduce the quality of material properties. One way to control corrosion is by adding organic, environmentally friendly inhibitors. In this study, curry leaf extract was used as an organic inhibitor, and the test material used was austenitic stainless steel American Standard Testing Materials (ASTM) A36. For the corrosive medium, H2SO4 2 M with concentration variations of 1000 mg/L, 1500 mg/L, 2000 mg/L, 2500 mg/L, and 3000 mg/L. The types of tests carried out in this study were weight loss, potentiodynamic polarization, and scanning electron microscope (SEM). The test results showed a decreasing in the corrosion rate of ASTM A36 steel when inhibitors were added. In the weight loss test, the value of the corrosion rate without an inhibitor was 128.083 mmpy while with an inhibitor it was 25.542 mmpy and the inhibition efficiency was 80.058 %. In the Potentiodynamic Polarization test, the resulting efficiency was 76.759 %. Other supporting tests (SEM) show the addition of inhibitors produces a thin protective layer on the surface of ASTM A36 steel. The results showed that curry leaf extract is a good corrosion inhibitor.
AB - Corrosion is a process of changing the properties of a material due to influence or reaction with the surrounding environment which tends to reduce the quality of material properties. One way to control corrosion is by adding organic, environmentally friendly inhibitors. In this study, curry leaf extract was used as an organic inhibitor, and the test material used was austenitic stainless steel American Standard Testing Materials (ASTM) A36. For the corrosive medium, H2SO4 2 M with concentration variations of 1000 mg/L, 1500 mg/L, 2000 mg/L, 2500 mg/L, and 3000 mg/L. The types of tests carried out in this study were weight loss, potentiodynamic polarization, and scanning electron microscope (SEM). The test results showed a decreasing in the corrosion rate of ASTM A36 steel when inhibitors were added. In the weight loss test, the value of the corrosion rate without an inhibitor was 128.083 mmpy while with an inhibitor it was 25.542 mmpy and the inhibition efficiency was 80.058 %. In the Potentiodynamic Polarization test, the resulting efficiency was 76.759 %. Other supporting tests (SEM) show the addition of inhibitors produces a thin protective layer on the surface of ASTM A36 steel. The results showed that curry leaf extract is a good corrosion inhibitor.
KW - 2M HSO
KW - Corrosion
KW - Curry leaf
KW - Mild steel
KW - Organic inhibitor
KW - Weight loss
UR - http://www.scopus.com/inward/record.url?scp=85206827506&partnerID=8YFLogxK
U2 - 10.1016/j.rineng.2024.103037
DO - 10.1016/j.rineng.2024.103037
M3 - Article
AN - SCOPUS:85206827506
SN - 2590-1230
VL - 24
JO - Results in Engineering
JF - Results in Engineering
M1 - 103037
ER -