Evaluation of corrosion in electrochemical systems using Michelson interferometry

Mayorga-Cruz, D.; Aguilar, P.A. Márquez; Sarmiento-Martínez, O.; Uruchurtu-Chavarı́n, J.

doi:10.1016/j.optlaseng.2006.02.001

Cited by 18 publications

(14 citation statements)

References 5 publications

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“…On the other hand, the blue dotted line shows the current density as depending on T and is calculated using N 1/4 3, l 1/4 632.8 nm and the following 304 stainless-steel physical parameters, n 1/4 2 electrons/ion, D 1/4 7.70 g/cm 3 , K 1/4 0.00327, and a 1/4 55.847 g/mol.…”

Section: Resultsmentioning

confidence: 99%

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Detection of Corrosion Processes in Metallic Samples of Copper by CND Control

Daira¹,

Chalvedin²,

Boulhout³

2013

MSA

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When diffusing object is illuminated by a laser, it gives the impression of being covered with a very fine grain structure. This structure commonly is nothing but the result of the interference of random waves from the object. In the early years of the invention of the laser sources, the CND control was considered a birth which severely affects the image resolution. Various studies have been developed to remove. The development of new systems for capturing images CCD coupled with tools image processing techniques has made the CND control most interesting for industrial control real-time and non-destructive. Metrology of photography and optic interferometry are two methods that provide the ability to analyze and determine deformations of structures. The CND technique is the most answered and more particularly the technical of interferometry. This method is simple to implement, follow the evolution of the interference of a speckle fields diffracted by an object and a reference fields. Images are recorded by a CCD camera and digitally processed by computer to generate correlograms from which is extracted the gauging. CND techniques have provided only qualitative measures as correlation fringes. The application process and digital image processing techniques to measure phase yielded quantitative measures. Among the techniques for calculating phase, the phase shift method is the most used because it is the most accurate. This technique is based on a combination of shifted interferograms to extract the phase. It requires a phase modulator for generating phase-shifted interferograms speckle and an algorithm for calculating the phase.

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Section: Resultsmentioning

confidence: 99%

“…A video system is used to generate the correlation fringes which correspond exactly to the movement of the object between the two exposures [1][2][3][4]. This document describes the physical evolution of a reference material (PRM) that generates a known strain in a defined area to assess the area as a function of displacement application.…”

Section: Introductionmentioning

confidence: 99%

Detection of Corrosion Processes in Metallic Samples of Copper by CND Control

Daira¹,

Chalvedin²,

Boulhout³

2013

MSA

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“…Resulting interferograms were registered on real-time video, so each image can be related at the time it was recorded to a specific point on the polarization curve starting from negative potential values (reduction reaction region), and sweeping towards more positive potentials. This optical tool can be helpful as a complementary technique to conventional ones for interpretation of some corrosion processes or electrochemical attack taking place at the metal-liquid interface, by analysis of the interference fringes evolution appearing through the polarization cycles during experimental tests (3,5).…”

Section: Experimental Methodsmentioning

confidence: 99%

Investigation of System Dynamics in a Corrosion Process by Optical and Electrochemical Methods

2008

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A brief investigation is presented in an electrochemical corrosion cell consisting of 99.5% aluminum sample immersed in 3% NaCl and hydrocarbon-chloride solution emulsion, which reaction processes were optically monitored using Michelson interferometry. An image processing method applied on obtained interferograms allowed to calculate oxide corrosion layer thickness formed over the metal surface. Additionally a theoretical model consisting of a two bi-dimensional difference equation system is proposed, in order to explain evolution of optical interference pattern maxima observed as a function of time for corrosion process, and also to establish a growth-competition model for the maxima fringes evolution and consequently for the oxide layer and corrosion system dynamics. Bifurcation diagrams showing equation system solution regions were additionally obtained based on the nonlinear dynamic behavior of corrosion processes showing chaotic dynamics.

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“…The ESPI technique is able to in situ monitor pitting corrosion continuously with a high sensitivity. It provides an effective way to study a single stable pit growth at macroscale [32,33].…”

Section: Introductionmentioning

confidence: 99%

Pitting Kinetics of 304 Stainless Steel Using ESPI Detection Technique

Tian

et al. 2015

Acta Metall. Sin. (Engl. Lett.)

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The electronic speckle pattern interferometer was used to in situ monitor the pitting corrosion of 304 stainless steel at anodic polarization. The pitting current and pitting current density of a single pit were obtained. The pit growth was controlled by the corrosion products diffusion. The pit morphology was observed by a scanning electron microscope. The results showed that the pit was dish shaped, and the geometric parameters and pit growth time conformed to the function of Y = A ? B 1 t ? B 2 t 2 ? B 3 t 3 .

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Evaluation of corrosion in electrochemical systems using Michelson interferometry

Cited by 18 publications

References 5 publications

Detection of Corrosion Processes in Metallic Samples of Copper by CND Control

Detection of Corrosion Processes in Metallic Samples of Copper by CND Control

Investigation of System Dynamics in a Corrosion Process by Optical and Electrochemical Methods

Pitting Kinetics of 304 Stainless Steel Using ESPI Detection Technique

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