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Journal articles on the topic 'Potentiodynamic Measurement'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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1

Saunders, Ivan. "Facilitating potentiodynamic anodic polarization measurement in corrosion testing." Anti-Corrosion Methods and Materials 43, no. 3 (1996): 21–25. http://dx.doi.org/10.1108/eb007393.

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2

Sebastian, Divine, Chun-Wei Yao, Lutfun Nipa, Ian Lian, and Gary Twu. "Corrosion Behavior and Mechanical Properties of a Nanocomposite Superhydrophobic Coating." Coatings 11, no. 6 (2021): 652. http://dx.doi.org/10.3390/coatings11060652.

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In this work, a mechanically durable anticorrosion superhydrophobic coating is developed using a nanocomposite coating solution composed of silica nanoparticles and epoxy resin. The nanocomposite coating developed was tested for its superhydrophobic behavior using goniometry; surface morphology using scanning electron microscopy and atomic force microscopy; elemental composition using energy dispersive X-ray spectroscopy; corrosion resistance using atomic force microscopy; and potentiodynamic polarization measurements. The nanocomposite coating possesses hierarchical micro/nanostructures, acco
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3

Liu, Yun, Zhi Dang, Yin Xu, and Tianyuan Xu. "Pyrite Passivation by Triethylenetetramine: An Electrochemical Study." Journal of Analytical Methods in Chemistry 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/387124.

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The potential of triethylenetetramine (TETA) to inhibit the oxidation of pyrite in H2SO4solution had been investigated by using the open-circuit potential (OCP), cyclic voltammetry (CV), potentiodynamic polarization, and electrochemical impedance (EIS), respectively. Experimental results indicate that TETA is an efficient coating agent in preventing the oxidation of pyrite and that the inhibition efficiency is more pronounced with the increase of TETA. The data from potentiodynamic polarization show that the inhibition efficiency (η%) increases from 42.08% to 80.98% with the concentration of T
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4

Moghanni-Bavil-Olyaei, Hamed, and Jalal Arjomandi. "Enhanced electrochemical performance of Al–0.9Mg–1Zn–0.1Mn–0.05Bi–0.02In fabricated from commercially pure aluminum for use as the anode of alkaline batteries." RSC Advances 6, no. 33 (2016): 28055–62. http://dx.doi.org/10.1039/c6ra02113a.

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The electrochemical performance of Al–0.9Mg–1Zn–0.1Mn–0.05Bi–0.02In (wt%) from commercially pure aluminum has been determined using open circuit potential–time measurement, galvanostatic discharge, potentiodynamic polarization and electrochemical impedance spectroscopy.
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5

Liang, Xiao Feng, and Xue Yang. "Corrosion Inhibition of 2-Mercaptobenzothiazole for Carbon Steel in Sulfuric Acid Solution." Advanced Materials Research 557-559 (July 2012): 92–95. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.92.

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The inhibition effect of 2-Mercaptobenzothiazole (2-MB) against the corrosion of carbon steel in sulfuric acid solution was studied by weight loss measurement and electrochemical measurements(potentiodynamic polarization techniques). The results show that 2-MB acts as a good corrosion inhibitor in sulfuric acid solution. Adsorption of 2-MB is found to obey Langmuir isotherm. Polarization curves indicate 2-MB is a mixed-type inhibitor. The effects of temperature and sulfuric acid concentration were also studied.
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6

Asaduzzaman, M. D., Chand Mohammad, and Islam Mayeedul. "Effects of concentration of sodium chloride solution on the pitting corrosion behavior of AISI 304L austenitic stainless steel." Chemical Industry and Chemical Engineering Quarterly 17, no. 4 (2011): 477–83. http://dx.doi.org/10.2298/ciceq110406032a.

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The pitting corrosion behavior of the austenitic stainless steel in aqueous chloride solution was investigated using electrochemical technique. Corrosion potential (Ecorr) measurement, potentiodynamic experiments, potential-hold experiments in the passive range, and microscopic examination were used for the evaluation of corrosion characteristics. The experimental parameters were chloride ion concentration, immersion time and anodic-hold potential. Ecorr measurements along with microscopic examinations suggest that in or above 3.5 % NaCl at pH 2 pitting took place on the surface in absence of
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7

Mohanty, Udit Surya, and Kwang-Lung Lin. "Potentiodynamic Polarization Measurement of Sn–8.5Zn–XAl–0.5Ga Alloy in 3.5% NaCl Solution." Journal of The Electrochemical Society 153, no. 8 (2006): B319. http://dx.doi.org/10.1149/1.2209569.

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8

Li, Song Song, Wei He, Zhi Hua Tao, and Shou Xu Wang. "Electrochemical Investigation of Triadimenol as Corrosion Inhibitor for Copper in 0.5mol/L H2SO4 Solution." Advanced Materials Research 830 (October 2013): 81–85. http://dx.doi.org/10.4028/www.scientific.net/amr.830.81.

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This paper chose triadimenol as a corrosion inhibitor of copper in 0.5mol/L sulfuric acid. The properties of corrosion inhibition were investigated by the polarization measurement and electrochemical impedance spectroscopy (EIS). Polarization curves showed that both cathodic and anodic processes of copper corrosion were suppressed. The inhibiting efficiency increased as the increment of the inhibitor concentration and reached 86.7% at 50 mg/L. The results obtained from EIS measurements are in line with that obtained from potentiodynamic polarization. Finally, a mechanism of inhibition is propo
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9

Genoni, Carmine, Anna da Forno, and Massimiliano Bestetti. "Comparison of Corrosion Resistance of High Pressure Die-Cast and Semi-Solid Cast AZ91, AM60, Alloys and Respective Anodic Oxides." Materials Science Forum 765 (July 2013): 618–22. http://dx.doi.org/10.4028/www.scientific.net/msf.765.618.

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A comparison of corrosion resistance of die-cast and semi-solid cast AZ91and AM60 magnesium alloys was performed in corrosive medium by measurement of the open circuit potential and potentiodynamic scans. Before testing, a heat treatment was carried out on the semi-solid cast alloys. Moreover, electrochemical measurements were performed on the four different substrates anodized in the micro-arc regime in an environment friendly alkaline aqueous solution. The results could be correlated to the different microstructures of the samples produced by the different processes and to the different comp
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10

Mariani, Simone Umberto, Anna da Forno, and Massimiliano Bestetti. "Corrosion Behaviour of High Pressure Die-Cast and Semi-Solid Cast AZ91, AM60 and AM50 Alloys." Solid State Phenomena 192-193 (October 2012): 231–37. http://dx.doi.org/10.4028/www.scientific.net/ssp.192-193.231.

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A comparison of corrosion resistance of die-cast and semi-solid cast AZ91, AM60 and AM50 magnesium alloys was performed in different corrosive media by measurement of the open circuit potential, potentiodynamic scans and weight loss tests. Before testing, a heat treatment was carried out onto semi-solid cast alloys. Electrochemical measurements have shown that the semi-solid cast alloys have a different corrosion rate compared to the die-cast ones. The results could be correlated to the different microstructures of the samples produced by the different processes.
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11

Isa, M. C., M. Y. Ahmad, Abdul Razak Daud, and M. Daud. "The Effect of Sn on the Impedance Behaviour of Al-Zn Alloys in Natural Chloride Solution." Key Engineering Materials 442 (June 2010): 322–29. http://dx.doi.org/10.4028/www.scientific.net/kem.442.322.

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Electrochemical behaviour of cast Al-Zn alloys in natural chloride solution were investigated by potentiodynamic measurements and electrochemical impedance spectroscopy (EIS). Results from open circuit potential (OCP) measurement against immersion time showed a stable free corrosion process was achieved after 15 kiloseconds and alloys with more Sn contents had shifted OCP value towards more negative direction. Potentiodynamic polarisation curves showed that the corrosion potential (Ecorr) of aluminium alloys with Sn addition were much active compared to alloy without Sn. The anodic curves were
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12

Vrsalović, Ladislav, Emeka Emmanuel Oguzie, Mirko Gojić, et al. "Intergranular Corrosion of Cu-Al-Ni Alloy in 0.5 mol dm−3 H2SO4 Solution." Kemija u industriji 69, no. 9-10 (2020): 457–64. http://dx.doi.org/10.15255/kui.2020.022.

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The corrosion behaviour of Cu-Al-Ni alloy in 0.5 mol dm–3 H2SO4 solution was investigated by electrochemical methods including open circuit potential measurement, electrochemical impedance spectroscopy measurements, linear and potentiodynamic polarization. Measurements were performed in 0.5 mol dm–3 H2SO4 at temperatures 20 and 40 °C. After polarization testing, corroded electrode surfaces were ultrasonically cleaned in deionized water and examined by light and scanning electron microscopy, while the elemental composition at individual points of the alloy surface was determined by EDS analysis
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13

Alonso-Falleiros, N., A. Hakim, and S. Wolynec. "Comparison Between Potentiodynamic and Potentiostatic Tests for Pitting Potential Measurement of Duplex Stainless Steels." CORROSION 55, no. 5 (1999): 443–48. http://dx.doi.org/10.5006/1.3284005.

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14

Murphy, O. J., and J. S. Wainright. "Measurement of Changes in Interfacial Tension at Solid Electrode/Solution Interfaces under Potentiodynamic Conditions." Journal of The Electrochemical Society 134, no. 1 (1987): 267–68. http://dx.doi.org/10.1149/1.2100428.

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15

Gapsari, Femiana, Rudy Soenoko, Agus Suprapto, and Wahyono Suprapto. "Bee Wax Propolis Extract as Eco-Friendly Corrosion Inhibitors for 304SS in Sulfuric Acid." International Journal of Corrosion 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/567202.

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The inhibition properties of bee wax propolis (BWP) extract on the 304SS in 0.5 M sulfuric acid were conducted using potentiodynamic polarization, EIS, and XRD. Quercetin (2-(3.4-dihydroxy phenyl)-3.5.7-trihydroxy-4H-chromen-4-one) was identified as the main compound in the BWP extract based on FTIR and HPLC analysis. The results showed that the inhibitor could retard the corrosion rate of 304SS in 0.5 M sulfuric acid which reached 97.29% and 91.42% at 2000 ppm based on potentiodynamic polarization and EIS measurement, respectively. The inhibition efficiency decreased with increasing temperatu
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16

Guerrero, Jan-Ervin C., Drexel H. Camacho, Omid Mokhtari, and Hiroshi Nishikawa. "Corrosion and Leaching Behaviours of Sn-0.7Cu-0.05Ni Lead-Free Solder in 3.5 wt.% NaCl Solution." International Journal of Corrosion 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/6580750.

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The corrosion and leaching behaviour of a new ternary Sn-0.7Cu-0.05Ni alloy in 3.5 wt.% NaCl solution is reported herein. Potentiodynamic polarization measurements show that Sn-0.7Cu-0.05Ni has the highest corrosion rate. Results of the 30-day Sn leaching measurement show that Sn-Cu-Ni joint has slight decrease attributed to the formation of thin passivation film after 15 days. The leaching amounts of Sn are observed to be higher in solder joint than in solder alloy due to the galvanic corrosion happening on the surface. EDS and XRD results of the corroded surface confirm that the corroded pro
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17

Zhang, Lei, Sheng Tao Zhang, and Xiao Li. "Electrochemical and Quantum Chemical Investigations of Tinidazole as Corrosion Inhibitor for Mild Steel in 3% HCl Solution." Advanced Materials Research 194-196 (February 2011): 157–64. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.157.

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The inhibition effect of tinidozole on the corrosion of mild steel in 3% HCl solution has been investigated through weight loss measurements, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and quantum chemical calculations methods. The results show that tinidazole is an effective inhibitor for mild steel corrosion in HCl solution, and that the inhibition efficiency reaches a maximum value of 62% at the concentration of 400mg/L. Polarization measurement suggests that the tinidozole acts as mixed-type inhibitor. The Langmuir adsorption isotherm is proposed to interpre
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18

Zhang, Mingyang, Jianbang Ge, Jinsuo Zhang, and Li Emily Liu. "Redox potential measurement of AgCl in molten LiCl-KCl salt using chronopotentiometry and potentiodynamic scan techniques." Electrochemistry Communications 105 (August 2019): 106498. http://dx.doi.org/10.1016/j.elecom.2019.106498.

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19

Jones, S., K. Coley, and J. Kish. "Prediction and Measurement of Corrosion Rates of Stainless Steel in Concentrated Sulfuric Acid." Corrosion 69, no. 6 (2013): 543–50. http://dx.doi.org/10.5006/0709.

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When exposed to concentrated sulfuric acid, stainless steel exhibits unique electrochemical behavior. This behavior can be observed as an oscillation in open-circuit potential between the active and passive states. The transient nature of the corrosion behavior under these conditions results in a distinct challenge for measuring and predicting corrosion rates. Using a series of commercial alloys with various nickel contents, this paper outlines the utilization of electrochemical experimentation to refine the prediction of corrosion rates. The paper also discusses some of the difficulties assoc
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20

Nwanonenyi, Simeon C., Okoro Ogbobe, and Emeka Emmanuel Oguzie. "Protection of Mild Steel Corrosion in Sulphuric Acid Environment Using Wheat Starch." International Journal of Engineering and Technologies 10 (March 2017): 11–21. http://dx.doi.org/10.18052/www.scipress.com/ijet.10.11.

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The corrosion of mild steel in 0.5 M H2SO4acid solution and the inhibition process by wheat starch (WS) was investigated using weight loss and potentiodynamic polarization measurement techniques respectively. Gravimetric results revealed that there is significant reduction in the corrosion rate of mild steel in the presence of inhibited solution compared to blank solution, and also the inhibition efficiency was found to depend on the concentration of the WS. Data on potentiodynamic polarization results confirmed that WS exhibited mixed type inhibition behaviour, though the cathodic effect was
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21

Sherif, El-Sayed M., Sameh A. Ragab, and Hany S. Abdo. "Role of Vanadium Additions on the Corrosion Mitigation of Ti-6Al-xV Alloy in Simulated Body Fluid." Metals 10, no. 7 (2020): 903. http://dx.doi.org/10.3390/met10070903.

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The manufacturing of different Ti-6Al-xV (x = 2, 4, 6, and 8 wt.%) alloys using a mechanical alloying technique was reported. The corrosion behaviors of these newly fabricated alloys after 1, 24, and 48 h exposure to a simulated body fluid (SBF) were assessed using cyclic potentiodynamic polarization, electrochemical impedance spectroscopy, and chronoamperometric measurements. Surface morphology and elemental analyses after corrosion for 48 h in SBF were reported using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) examinations. An X-ray diffraction investigation characte
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22

Xi, Jian Jun, Jun Zhao, Zhi Gang Wang, Chun Ping Zhao, and Mei Ping Xue. "Study of Copper Electroplating Films Made by Four Power Modes and Magnetic Field on 20# Steel." Applied Mechanics and Materials 528 (February 2014): 14–18. http://dx.doi.org/10.4028/www.scientific.net/amm.528.14.

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Copper electroplating films were prepared on 20# steel by four different power modes which are direct current plating, single polar pulse plating, bipolar pulse plating and bipolar pulse plating with magnetic field. The electrochemical performance was investigated in 3.5% NaCl solution by means of potentiodynamic polarization measurement. The morphology and micro structure were characterized by scanning electron microscope and X-ray diffraction. It is proved that the magnetic field is responsible for the improvement of the performance of copper electroplating films.
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23

Sunada, Satoshi, Takahisa Yamamoto, and Kazuhiko Majima. "Electrochemical Properties of Type 304 Stainless Steels Produced by Several Methods." Materials Science Forum 539-543 (March 2007): 3225–30. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.3225.

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Three kinds of Type 304 stainless steels: the first one was made by the conventional wrought process (I/M), the second one by conventional powder metallurgy process (P/M) and the third one by Metal Injection Molding process (MIM), were used. The corrosion behavior of these specimens was investigated through the potentiodynamic polarization curve measurement and electrochemical impedance spectroscopy method. In addition, SCC characteristics were also studied. Both the potentiodynamic polarization curve and the Nyquist plot curve of MIM specimen were similar to those of I/M specimen, but differe
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24

Lizarazo-Ávila, Pedro Javier, Rodolfo Rodríguez-Baracaldo, and Jhon Jairo Olaya-Flórez. "Corrosion resistance of bainitic steels alloyed with boron." Respuestas 25, no. 1 (2020): 78–88. http://dx.doi.org/10.22463/0122820x.2410.

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Due to its good combination of properties and its wide range of application in the automotive and rail sector, among others, banitic steels have been studied by modifying their chemical composition using different alloys in order to improve their resistance, as is the case of boron, which is an element that allows to increase the mechanical properties of steel and its behavior against phenomena such as wear when is used in small quantities. In the present investigation, through of saline chamber and potentiodynamic polarization tests, the influence of boron was studied in steels with bainitic
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25

Xie, Bin, Chuan Lai, Li Ke Zou, et al. "Adsorption Behavior and Inhibition of N,N-Diethylammonium O,O'-Dicyclohexydithiophosphate for Carbon Steel in Acid Medium." Advanced Materials Research 239-242 (May 2011): 347–51. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.347.

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The inhibition effect of N,N-diethylammonium O,O'-dicyclohexyldithiophosphate(NOCP) against the corrosion of carbon steel in HCl solution was studied by weight loss measurement, potentiodynamic polarization and atomic force microscopy techniques. The studies of weight loss measurement show that the inhibition efficiency was up to 99.54 % at the inhibitor concentration of 2.717×10-4 M in 1.0 M HCl solution at 25°C. The adsorption of NOCP on carbon steel surface obeys the Langmuir isotherm. Polarization curves indicate NOCP is a mixed-type inhibitor, and the obtained standard free energy of adso
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26

Li, Jun, Dong Ye, Yong Mei Chen, Jie Su, and Kun Yu Zhao. "Effect of Chloric Ions and Temperature on the Pitting Corrosion Behavior of Supermartensitic Stainless Steel in CO2-Saturated Chloride Solution." Advanced Materials Research 538-541 (June 2012): 2342–45. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.2342.

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Abstract. The pitting corrosion behavior of two kinds (W and Cu-free; W and Cu-bearing) of supermartensitic stainless steels (SMSS) were studied in CO2-saturated chloride solution with three chloric ion concentration: 21200, 50000, 100000ppm, and four different temperatures:19, 40, 60, 80°C by potentiodynamic polarization measurement. The results indicate that the pitting potential decreased with temperature increasing, and in a logarithmic relation with the chlorine concentration in both alloys. The pitting potential of supermartensitic stainless steel is increased by together adding tungsten
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27

ASAAD, MOHAMMAD ALI, MOHAMMAD ISMAIL, PANDIAN BOTHI RAJA, and NUR HAFIZAH A. KHALID. "RHIZOPHORA APICULATA AS ECO-FRIENDLY INHIBITOR AGAINST MILD STEEL CORROSION IN 1 M HCL." Surface Review and Letters 24, Supp01 (2017): 1850013. http://dx.doi.org/10.1142/s0218625x18500130.

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The inhibitive characteristics of aqueous extracts from mangrove (Rhizophora apiculata) bark and leaf on the corrosion of mild steel (MS) coupon in 1 M HCl were examined by means of the gravimetric measurement (weight loss), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. The MS surface morphologie were investigated using field emission scanning electron microscopy (FESEM) with Energy Dispersive X-Ray Analysis (EDX) at 120[Formula: see text]h in the presence and absence of green inhibitors in corrosive medium. Respective inhibition efficiencies of 68.1
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28

Tian, Lin Hai, Er Qiang Liu, Ai Lan Fan, et al. "Effect of TiN/CrN Multilayer Coating by Cathodic Arc Deposition on Wear and Corrosion Behaviours of AZ91D Magnesium Alloy." Materials Science Forum 610-613 (January 2009): 870–73. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.870.

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TiN/CrN multilayer coating was deposited on AZ91D magnesium alloy by pulsed bias cathodic arc PVD process. Effects of the coating on wear and corrosion behaviours of magnesium alloy were investigated. The stick-tearing for adhesion evaluation, nanoindentation for hardness measurement, ball-on-disc testing for wear tests, and potentiodynamic polarization for corrosion tests were used. The results show that the friction coefficient is decreased and the wear resistance is improved remarkably by TiN/CrN multilayer coating on AZ91D magnesium alloy. The corrosion resistance of the alloy is increased
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29

Li, Dan Dan, Jian Jun Hao, Yue Jin Ma, Liang Gao, and Jian Guo Zhao. "Study on the Corrosion Resistance of Ti(CN) Composites Coating." Applied Mechanics and Materials 341-342 (July 2013): 88–91. http://dx.doi.org/10.4028/www.scientific.net/amm.341-342.88.

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Metal composites coating of Ti (CN) was made on the surface of Q235 steel substrate by reaction nitrogen are welding cladding process, and potted with low temperature epoxy, di-n-butyl phthalate and T31, the mass ratio was 10:2:1.5. To evaluate the corrosion resistance of Ti (CN) coating, the specimens were immersed in 5% sulfuric acid and 3.5% sodium chloride to calculate corrosion rate by potentiodynamic polarization measurement. The corrosion resistance of Ti (CN) is improved by 3.45 times in 5% sulfuric acid and 4.39 times in3.5% sodium chloride.
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30

Ganash, Aisha. "Anticorrosive Properties of Poly(o-phenylenediamine)/ZnO Nanocomposites Coated Stainless Steel." Journal of Nanomaterials 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/540276.

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Poly(o-phenylenediamine) and poly(o-phenylenediamine)/ZnO (PoPd/ZnO) nanocomposites coating were prepared on type-304 austenitic stainless steel (SS) using H2SO4acid as electrolyte by potentiostatic methods. Fourier transforms infrared spectroscopy and scanning electron microscopy techniques were used to characterize the composition and structure of PoPd/ZnO nanocomposites. The corrosion protection of polymer coatings ability was studied byEocp-time measurement, anodic and cathodic potentiodynamic polarization and impedance techniques in 3.5% NaCl as corrosive solution. It was found that ZnO n
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31

Gapsari, Femiana, and Andita Ganda. "Psidium guajava Leaves as Corrosion Inhibitor of Al-6061." Materials Science Forum 1045 (September 6, 2021): 231–36. http://dx.doi.org/10.4028/www.scientific.net/msf.1045.231.

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The anti-corrosion characteristic of the extract of Psidiumguajava leaves on aluminum in 3.5 wt% sodium chloride were examined using electrochemical measurement. The thermodynamic factors such as the free energy adsorption, change in enthalpy, and entropy was also analyzed. The adsorption isotherm was detail described to study the adsorption of the inhibitor on the aluminum surface with various concentrations of the inhibitor. The electrochemical measurement was done through the potentiodynamic polarization test. The results show that the inhibitor act as the mixed type inhibitor and its adsor
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32

Pettit, C. M., P. C. Goonetilleke, and D. Roy. "Measurement of differential capacitance for faradaic systems under potentiodynamic conditions: Considerations of Fourier transform and phase-selective techniques." Journal of Electroanalytical Chemistry 589, no. 2 (2006): 219–31. http://dx.doi.org/10.1016/j.jelechem.2006.02.012.

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33

Hoshi, Yoshinao, Yusuke Hirayama, Hikari Watanabe, Isao Shitanda, and Masayuki Itagaki. "Communication—In Situ Hydrogen Evolution Detection from Mg Electrode During Anodic Potentiodynamic Polarization Measurement with Gas-Chromatographic Analysis." Journal of The Electrochemical Society 168, no. 3 (2021): 031510. http://dx.doi.org/10.1149/1945-7111/abebb0.

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34

Zou, Li Ke, Chuan Lai, Bin Xie, et al. "Adsorption Behavior and Corrosion Inhibition of EPP for Q235 Steel in H2SO4 Solution." Advanced Materials Research 287-290 (July 2011): 2923–26. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.2923.

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The inhibition effect of N,N-diethylammonium O,O'-di(2-phenylethyl)dithiophosphate (EPP, [NH2(Et)2][S2P(OCH2CH2Ph)2]2) against the corrosion of Q235 steel in H2SO4solution was studied by weight loss measurement, potentiodynamic polarization and SEM(scanning electron microscope) techniques. The results show that EPP acts as an excellent corrosion inhibitor in 5% H2SO4by suppressing simultaneously the cathodic and anodic processes via chemical adsorption on Q235 steel surface, which complies with the Langmuir adsorption isotherm. Polarization curves indicate EPP is a mixed-type inhibitor. The ef
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35

Zhao, Bin, and Li Ke Zou. "Corrosion Inhibition of Chloroacetic-Acid Modified Imidazoline for Q235 Steel in H2SO4 Solution." Advanced Materials Research 710 (June 2013): 41–44. http://dx.doi.org/10.4028/www.scientific.net/amr.710.41.

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A new chloroacetic-acid modified imidazoline (CAMI) was synthesized via the quaternization of imidazoline intermediate, obtained from the amidation and cyclization reactions of benzoic acid and diethylene triamine, with chloroacetic-acid. The performance of the synthesized compound CAMI as corrosion inhibitor for Q235 carbon steel in 5% sulfuric acid solution was investigated by weight loss measurement and potentiodynamic polarization technique. The results show that CAMI possesses strong inhibitive effect on the corrosion of Q235 carbon steel in acid medium and restrains the corrosion without
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36

SENTHILKUMAR, A. N., K. THARINI, and M. G. SETHURAMAN. "CORROSION INHIBITORY EFFECT OF FEW PIPERIDIN-4-ONE OXIMES ON MILD STEEL IN HYDROCHLORIC ACID MEDIUM." Surface Review and Letters 16, no. 01 (2009): 141–47. http://dx.doi.org/10.1142/s0218625x09012408.

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Three piperidin-4-one oxime derivatives viz. 3,5-dimethyl-2,6-diphenyl-piperidin-4-one oxime (DDPO), 3-ethyl-2,6-diphenyl-piperidin-4-one oxime (EDPO), and 1-methyl-3-isopropyl-2, 6-diphenyl-piperidin-4-one oxime (MIDPO) were synthesized. Corrosion inhibiting ability of these compounds in 1 M HCl was studied using weight loss study, potentiodynamic polarization measurements, electrochemical impedance spectroscopy, XRD and SEM with EDS measurements. Weight loss studies revealed that all the three oximes are good corrosion inhibitors. The order of inhibiting ability of these compounds is as foll
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37

Curioni, M. "The behaviour of magnesium during free corrosion and potentiodynamic polarization investigated by real-time hydrogen measurement and optical imaging." Electrochimica Acta 120 (February 2014): 284–92. http://dx.doi.org/10.1016/j.electacta.2013.12.109.

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38

Dini, Danilo, Elisabetta Salatelli, and Jouko Kankare. "In Situ Measurement of the Conductance of Regioregular Poly-3′,4′-didodecyl-2,2′:5′,2′′-terthiophene during Potentiodynamic Growth." Journal of The Electrochemical Society 168, no. 8 (2021): 082507. http://dx.doi.org/10.1149/1945-7111/ac1b4e.

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Loto, Cleophas Akintoye, та Roland Tolulope Loto. "Potassium Gluconate Inhibition of α-Brass Corrosion in 1 M HNO3". Oriental Journal of Chemistry 35, № 2 (2019): 523–30. http://dx.doi.org/10.13005/ojc/350203.

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Potassium gluconate inhibition effects of α-brass corrosion immersed in 1 M HNO3 were studied at room temperature (25°C). Gravimetric and potentiodynamic polarization measurement techniques were used separately for the experimental investigation. A Digi-Ivy potentiostat, connected to computer for data acquisition and analyses was used for the potentiodynamic polarization experiments. The observed potassium gluconate’s corrosion inhibition increased as the inhibitor concentration increased up to 3.5g/200ml HNO3 where a 0.7224g weight loss was recorded in comparison with the experiment without a
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40

Pochrząst, M., Jan Marciniak, K. Wróbel, and Bohdan Bączkowski. "Electrochemical Properties of Ni-Cr and Co-Cr Alloys Used in Prosthodontics." Solid State Phenomena 183 (December 2011): 143–48. http://dx.doi.org/10.4028/www.scientific.net/ssp.183.143.

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The aim of the work was evaluation of electrochemical properties of Co-based alloys (Remanium GM 800+ and Biosil F) and Ni-based alloys (Heraenium NA and Remanium G-Soft) commonly used on frameworks for porcelain faced cast partial dentures. First stage of the work was evaluation of surface roughness by means of direct linear contact measurement (SURTRONIC 3+ profiler, Taylor/Hobson) of samples after casting and surface treatment. Electrochemical properties of surface were assessed by means of potentiodynamic and impedance methods. In potentiodynamic tests, in order to evaluate pitting corrosi
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Ye, Hong, Xiao Bin Zhang, Xia Chang, and Rui Chen. "Microstructures and Properties of Laser Al Alloying on AZ31 Magnesium Alloy." Advanced Materials Research 189-193 (February 2011): 867–70. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.867.

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In order to improve corrosion and wear resistance of magnesium alloy, Al coating was prepared on the AZ31 magnesium alloy by the thermal spraying, then the Al-rich layer was obtained by using a CO2 laser re-melting. The microstructures and phases of the alloying layer were analyzed by canning electron microscope (SEM) and X-ray diffraction apparatus (XRD). The mechanical properties were investigated by using hardness measurement and ring-on-flat apparatus. The corrosion behaviour was investigated in 3.5% (mass fraction) NaCl solution by electrochemical measurements. The results show that there
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42

Neena, P. K., N. Poongothai, and P. R. Abhirami. "Efficiency of Alstonia schoalris Leaves on Mild Steel in Acid Medium as Pickling Inhibitor." Asian Journal of Chemistry 31, no. 12 (2019): 2745–52. http://dx.doi.org/10.14233/ajchem.2019.22184.

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This work aims to find the inhibition efficiency of Alstonia schoalris leaves on mild steel in 1N HCl medium. Corrosion monitoring was done using weight loss method, potentiodynamic polarization studies like Tafel and impedance studies and the results shows that the inhibitor acts well on mild steel in acidic medium. Polarization studies show that the inhibitor behaves like a mixed type. The inhibitor was characterized using FTIR which showed the presence of hetero atoms in the inhibitor molecule that get adsorbed on metal surface and provided better efficiency and that was proven by different
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43

Ding, Zheng, Qiang Miao, Wenping Liang, Zhengang Yang, and Shiwei Zuo. "Performance Enhancement in Borocarburized Low-Carbon Steel by Double Glow Plasma Surface Alloying." Coatings 10, no. 12 (2020): 1205. http://dx.doi.org/10.3390/coatings10121205.

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In this paper, the performance of low-carbon steel is enhanced after introducing a borocarburized diffusion layer via double glow plasma surface alloying technology. Due to the boron-carbon gradient structure of low-carbon steel, the protective coating exhibits an excellent wear and corrosion resistance. Interestingly, the borocarburized layer consists of a 64 μm carburized layer and a 27 μm boride layer, which plays an effective role in enhancing the microhardness of borocarburized low-carbon steel, exhibiting a 1440 Vickers hardness increase in the surface microhardness of low-carbon steel.
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44

Abouzeid, Fatma M. "Study of Steel Electro-dissolution Behavior in Presence of Some Surfactants. Electrochemical Investigation and Surface Active Properties Determination." Revista de Chimie 72, no. 3 (2021): 179–97. http://dx.doi.org/10.37358/rc.21.3.8447.

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Steel electro-dissolution performance was investigated in orthophosphoric acid in the presence of N-oleyl 1.3 diaminopropane, Benzalkounuim chloride, Soduim lauryl sulphate and Di-Isononyl phthalate as a surfactant using potentiodynamic polarization measurements. The retardation performance of these surfactants was examined. The surfactant surface active parameters were estimated based on surface tension measurements. The parameters calculated comprise the critical micelle concentration (CMC), maximum surface excess (Гmax), minimum surface area (Amin) and effectiveness (πCMC). The micellizatio
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Idora, M. S. Noor, M. M. Rahman, M. Ismail, and W. B. Wan Nik. "Effect of Zinc Coating Thickness on Corrosion Performance of Mild Steel in Atmospheric and Seawater Environment." Applied Mechanics and Materials 554 (June 2014): 213–17. http://dx.doi.org/10.4028/www.scientific.net/amm.554.213.

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The application of zinc coating as a protective film to the mild steel against corrosion attack in atmospheric and seawater environment was studied. The objective of this study is to evaluate the corrosion performance of mild steel coated by different thickness of zinc under salt spray and also immersion test. The corrosion measurement test was performed by weight loss and potentiodynamic polarization. From the experimental study, it was found that the corrosion rate of mild steel is inversely proportional to the zinc coating thickness. The result also showed that the corrosion rate of mild st
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Nguyen, Viet Hue, Thi Nam Hoang, Sik Chol Kwon, Man Kim, and Joo Yul Lee. "Study on the Properties of Chromium Matrix Composite Plated with Nanosized Diamond Powders." Advanced Materials Research 26-28 (October 2007): 1361–64. http://dx.doi.org/10.4028/www.scientific.net/amr.26-28.1361.

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A study on chromium matrix composite plated with nanosized diamond powders was undertaken by employing a standard Sargent bath. Chromium matrix composite plated with nanosized diamond powders manifested super properties. The microhardness was varied from 890 to 920 HV (load 25 g/f), as compared with 801 HV of pure chromium; the wear resistance was increased 3-4 times. The potentiodynamic measurement in a chloride medium showed that the passive current of chromium matrix composite plated with nanosized diamond powder was 6 times as lower as that of pure chromium. Microscopic observation indicat
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Глебова, Н. В., А. О. Краснова, А. А. Нечитайлов, А. А. Томасов та Н. К. Зеленина. "Исследование массотранспортных потерь структурно-модифицированных электродов воздушно-водородных топливных элементов методом вольт-амперной характеристики". Журнал технической физики 91, № 4 (2021): 627. http://dx.doi.org/10.21883/jtf.2021.04.50626.241-20.

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The article discusses platinum-carbon electrodes with mixed conductivity as part of membrane-electrode assemblies of fuel cells containing structural-modifying additives with structural elements of various types: carbon nanotubes with elongated structural elements and graphene-like materials with almost two-dimensional planes. Based on the data on the limiting current density obtained in potentiodynamic and potentiostatic modes, the mass transport losses of molecular oxygen transfer in these electrodes are investigated. Using different measurement conditions, the baric dependences of the curre
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Kosasang, Onthida, Autsadawooth Kummoo, Ratchapol Konghakot, and Sukangkana Talangkun. "Corrosion Investigation and Microstructure of High Calcium Fly Ash Reinforced Al6061." Key Engineering Materials 824 (October 2019): 260–66. http://dx.doi.org/10.4028/www.scientific.net/kem.824.260.

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In this study, the effect of high Ca fly ash on the corrosion behavior and microstructure of Al6061 alloy matrix composite was investigated. The Al6061 matrix composites containing 5, 7, and 10 wt% of fly ash particles were prepared by the stir casting process. The corrosion behavior was investigated using potentiodynamic polarization measurement using 5 wt% NaCl. The results revealed that the Icorr increased from 2.44 µA/cm2 to 8.60 µA/cm2 as the fly ash concentration increased from 5 wt% to 10 wt%. This increase of Icorr indicates an increase of the corrosion rate. The corrosion mainly occur
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Liu, Hengquan, Y. X. Leng, Guojiang Wan, and Nan Huang. "Corrosion susceptibility investigation of Ti–O film modified cobalt-chromium alloy (L-605) vascular stents by cyclic potentiodynamic polarization measurement." Surface and Coatings Technology 206, no. 5 (2011): 893–96. http://dx.doi.org/10.1016/j.surfcoat.2011.04.048.

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50

Saraswathy, Velu, Han-Seung Lee, Subbiah Karthick, and Seung-Jun Kwon. "Stress Corrosion Behavior of Ungrouted Pretensioned Concrete Beams." Advances in Materials Science and Engineering 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/8585162.

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Prestressed concrete beams of size 150 × 150 × 1000 mm were designed, and two bonded cold-drawn 7 mm steel wires were stressed at 70% UTS under service conditions before concreting. The beams were cast with M40 grade concrete mix with various percentages of chlorides ranging from 0, 1, 2, and 3% by weight of cement and cured for 28 days. After 28 days, the stretching forces were released, the prestressing steel wire was allowed to regain its original length, the tensile stresses were transformed into a compressive stress in the concrete, and the stress corrosion behavior was assessed. Stress c
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