نتایج جستجو برای: potentiodynamic

تعداد نتایج: 949  

2017
ROLAND TOLULOPE LOTO

The corrosion resistance of type 304L and 316 austenitic stainless steels in 2M H2SO4 at 0-1.5%NaCl concentrations was studied through potentiodynamic polarization technique and optical microscopy analysis. The corrosion rate, pitting potential, passivation potential and surface morphology of both steel where significantly altered by the Clion concentration, alloy composition and metallurgical ...

2018
Xin Jiang Yajun Zhou Chen Shi Daheng Mao

The effects of ultrasonic-aided quenching (USQ) on the microstructure and corrosion properties of 35CrMoV steel in a simulated seawater environment (wt % (NaCl) = 3.5) were studied. The corrosion properties of the steel were studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization curves. The scanning electron microscope (SEM) and energy dispersive spectrometer (...

2016
Gaius Debi Eyu Geoffrey Will Willem Dekkers Jennifer MacLeod

The effect of potassium iodide (KI) and sodium nitrite (NaNO₂ inhibitor on the corrosion inhibition of mild steel in chloride bicarbonate solution has been studied using electrochemical techniques. Potentiodynamic polarisation data suggest that, when used in combination, KI and NaNO₂ function together to inhibit reactions at both the anode and the cathode, but predominantly anodic. KI/NO₂- conc...

Journal: :Electroanalysis 2021

The influence of hydrogen phosphate (HPO42−) and molybdate ions (MoO42−) on the behavior tin corrosion in 0.2 M maleic acid was compared using experimental theoretical techniques. studies consisted electrochemical investigations (potentiodynamic polarization (PDP) impedance spectroscopy (EIS)), along with surface analytical techniques (SEM EDX). Additionally, analysis (the chemical quantum comp...

2016
M. BASIAGA W. WALKE D. NAKONIECZNY

M. Basiaga, W. Walke, D. Nakonieczny, A. Hyla Faculty of Biomedical Engineering, Silesian University of Technology, Zabrze, Poland The purpose of this study was to evaluate the usefulness of TiO2 layer to improve hemocompatibility of 316LVM stainless steel. The TiO2 layers studied in this work were deposited from TiCl4 and H2O in a low-pressure Atomic Layer Deposition (ALD) reactor taking into ...

2015
P. SOUNTHARI

The adsorption and corrosion inhibiting effect of branched polymers (BATP, BAAZ, BETP & BEAZ) on mild steel in 1M H2SO4 at 30±1°C was investigated using gravimetric, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization techniques. The experimental findings revealed that BATP inhibited the corrosion reaction in the acid environment to greater extend compared to BAAZ, BE...

2011
ANDREAS LESCH GUNTHER WITTSTOCK CHRIS BURGER BENJAMIN WALTHER

The anodic dissolution of 100Cr6 steel in neutral electrolytes containing sodium chloride and sodium nitrate was investigated potentiodynamically and galvanodynamically with a rotating disc electrode at room temperature. The total concentration of the mixed electrolyte was 3 mol L with variation of chloride/nitrate mole ratios. The potentiodynamic linear sweep voltammograms (LSVs) in mixed elec...

2015
Soon-Hyeok Jeon Haeng Hur Alan Meier

The galvanic corrosion behavior of Alloy 690 coupled with magnetite has been investigated in an alkaline solution at 30 °C and 60 °C using a potentiodynamic polarization method and a zero resistance ammeter. The positive current values were recorded in the galvanic couple and the corrosion potential of Alloy 690 was relatively lower. These results indicate that Alloy 690 behaves as the anode of...

2015
J. Porcayo-Calderon M. Casales-Diaz V. M. Salinas-Bravo L. Martinez-Gomez

Several austenitic stainless steels suitable for high temperature applications because of their high corrosion resistance and excellent mechanical properties were investigated as biomaterials for dental use. The steels were evaluated by electrochemical techniques such as potentiodynamic polarization curves, cyclic polarization curves, measurements of open circuit potential, and linear polarizat...

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