نتایج جستجو برای: potentiodynamic test
تعداد نتایج: 812877 فیلتر نتایج به سال:
This paper focused on the characterization of electrochemical behavior of a martensitic stainless steel in the acidic solutions. For this purpose, electrochemical parameters were derived from potentiodynamic polarization, Mott Schottky analysis and electrochemical impedance spectroscopy (EIS) techniques. The potentiodynamic polarization results showed that corrosion current density of AISI 420 ...
vanillin offers interesting possibilities for corrosion inhibition because of its safe use and highsolubility in water. the effect of vanillin on the corrosion inhibition of aisi 304 stainless steel in0.5m h2so4 solution has been studied using potentiodynamic polarization and electrochemicalimpedance spectroscopy (eis). furthermore, this paper demonstrates that the electrochemical noise(en) tec...
The applications of Bismuth Titanate (BixTiyOz) materials have been focused on their electronic and optical properties, but with respect to the use of these compounds in applications like corrosion resistance, have been very few or nonexistent. For this reason, in the present investigation BixTiyOz thin films were deposited using RF magnetron sputtering onto silicon wafers, stainless steel 316L...
Titanium nitride thin films were grown on 304 stainless steel substrates at various nitrogen/argon flow ratios by ion beam sputtering (IBS) technique. The current research is a follow up study on the influence of gas ratio on structural and corrosion properties in the TiN coated 304 stainless steel. Film structural identification of phases was performed using X-ray diffractometry (XRD). Sca...
The CrFeCoNi coating was fabricated by the laser remelting method. microstructure of detected. corrosion behavior at different temperatures investigated electrochemical measurements. Potentiodynamic polarization test results indicated that current density increased with increase in solution temperature 3.5 wt% NaCl and 0.5 mol/L H2SO4 solutions, suggesting exhibited higher resistance to attack ...
Plasma electrolytic oxidation (PEO) treated ceramic coatings were formed in silicate-based electrolytes without and with the addition of Al2O3, on an aluminum alloy. It was found that coating produced electrolyte containing 7 g/L Al2O3 exhibited most superior corrosion properties. The properties 0.5 M 1 NaCl solutions studied by means potentiodynamic polarization electrochemical impedance spect...
The inhibition effect of Cefalexin on the corrosion mild steel in sodium chloride has been examined with use weight loss and potentiodynamic polarization methods at ambient temperature. showed good protection ability by adsorbing surface. mixed characteristics were revealed Potentiodynamic results. inhibitor efficiency was found to be above 65% obeying Langmuir Freundlich isotherm law correlati...
In this study, corrosion behavior of copper that was deformed by Simple Shear Extrusion (SSE) method was investigated in 3%wt NaCl solution. Modified Williamson-Hall method, applied on the X-ray diffraction patterns of the samples, showed that increase in the number of SSE passes led to increasing in the dislocation density in the copper samples. Moreover, such deformed samples exh...
Super duplex stainless steel (SDSS) is used for manufacturing large valves and pipes in offshore plants because of its excellent strength corrosion resistance. Large are manufactured by forging after casting, the outside inside microstructures different owing to difference cooling rate caused thermal conductivity. This microstructural variation causes cracks during solution annealing, which bre...
Nitrogen doped diamond-like carbon (DLC:N) thin films were deposited on p-Si (100) substrates by DC magnetron sputtering with different nitrogen flow rates at a substrate temperature of about 100 degrees C. The chemical bonding structure of the films was characterized by X-ray photoelectron spectroscopy (XPS) and micro-Raman spectroscopy. The adhesive strength and surface morphology of the film...
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