Comparison of the inhibition effects of Morpholine-based inhibitors on plain carbon steel in 3.5 wt.% NaCl and 0.5 M H2SO4 environments: Experimental and theoretical

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106206 - 106206

Опубликована: Март 1, 2025

Язык: Английский

---

Effect of the Use of Some Rare Earth Compounds as Corrosion Inhibitors for API 5L X70 Steel in Saline Medium

Metals, Год журнала: 2025, Номер 15(2), С. 195 - 195

Опубликована: Фев. 13, 2025

This work presents a comparative study of five rare earth compounds—Erbium nitrate pentahydrate lll (Er), Neodymium (Nd), Samarium III Nitrate Hexahydrate (Sm), Yterbium Chloride (Yb) and Praseodymium hexahydrate (Pr)—protecting API 5L X70 steel from corrosion in saline medium that uses electrochemical impedance spectroscopy (EIS) polarization curves (CPs) at different concentrations static mode. The results show Erbium is the best inhibitor, containing 50 ppm reaching an inhibition efficiency about 89%, similar result was shown by Sm with IE~87.9%, while other earths (Nd, Yb Pr) showed decrease protection same concentration, since they were below IE~80%. On hand, Langmuir model it possible to describe adsorption process three follows combined physisorption–chemisorption protect metal’s surface. observed free energy, ΔG°ads, reaches −38.7 kJ/mol for Er, −34.4 Nd, −33.6 Pr; whereas have energies −33.9 −35.0 kJ/mol, respectively. Scanning electron microscopy (SEM) atomic force (AFM) further confirmed formation protective film. Their characterization using density functional theory transference charge iron cluster towards metal compounds. produced slightly polarized region interaction Also, found affected magnetic properties surface cluster. Quantum chemical descriptors, such as Pearson’s HSAB (Hard Soft Acids Bases) useful predicting behavior flow electrons between interacting ions.

Язык: Английский

---

Unravelling the adsorption and anti-corrosion potency of newly synthesized thiazole Schiff bases on C-steel in 1 M HCl: Computational and experimental implementations

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104504 - 104504

Опубликована: Фев. 1, 2025

Язык: Английский

---

Evaluating the Efficacy of Binary Benzimidazole Derivatives as Corrosion Inhibitors for Carbon Steel Using Multi-Modal Analysis and Optimization Techniques

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104671 - 104671

Опубликована: Март 1, 2025

Язык: Английский

---

Electrochemical analysis of mechanically alloyed Ti50%-Ni50% alloy for bone implants use

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1010, С. 178046 - 178046

Опубликована: Дек. 16, 2024

Язык: Английский

---