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V. NASCOV1,* , C. SAMOILĂ1, D. URSUŢIU1
An experimental study on corrosion monitoring by using optical methods, in both coherent and incoherent light is presented. The corrosion is a surface degradation process and the optical methods, especially that based on coherent light, are sensitive techniques to detect surface alterations. A metal or alloy sample is introduced into a corrosion cell connected to a PGstat device. While the sample undergoes a corrosion process at a rate controlled by the PGstat device, its surface is illuminated incoherently and inspected periodically by a digital microscope. Then, another setup is used: the sample is illuminated by coherent light and a video camera without lens records speckle patterns in an objective speckle setup. The two techniques are compared and it is pointed out what new information is revealed in the case of coherent illumination..
Corrosion monitoring, Electrochemistry, Dynamic speckle.
V. NASCOV, C. SAMOILĂ, D. URSUŢIU, Corrosion monitoring by optical inspection with coherent and incoherent light, Optoelectronics and Advanced Materials - Rapid Communications, 8, 11-12, November-December 2014, pp.1005-1012 (2014).
Submitted at: Feb. 5, 2014
Accepted at: Nov. 13, 2014
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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