Bookcover of Corrosion Inhibition of 18% Ni M250 Grade Weld Aged Maraging Steel
Booktitle:

Corrosion Inhibition of 18% Ni M250 Grade Weld Aged Maraging Steel

LAP LAMBERT Academic Publishing (2018-02-02 )

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ISBN-13:

978-613-7-34026-4

ISBN-10:
6137340260
EAN:
9786137340264
Book language:
English
Blurb/Shorttext:
The corrosion and corrosion inhibition of maraging steel under weld aged condition in 2.0 M HCl solution by 2-(4-Bromophenyl)-2-oxoethyl 4-chlorobenzoate (CPOM) was studied using potentiodynamic polarization technique and electrochemical impedance spectroscopy. Polarization results showed that corrosion current density, icorr, and hydrogen evolution reaction decreases with increasing concentration of inhibitor in 2.0 M HCl solutions, indicating a decrease in the corrosion rate. Electrochemical impedance spectroscopy (EIS) measurements also confirmed this behavior. Using the potentiodynamic polarization technique, the inhibitor was proved to have a mixed-type inhibition character for weld aged maraging steel by suppressing both anodic and cathodic reactions on the metal surface. The inhibition efficiency was found to increase with increase in CPOM concentration but decreased with the temperature, which is suggestive of physical adsorption mechanism. Both activation and thermodynamic parameters were calculated and discussed. The adsorption of CPOM on weld aged maraging steel surface obeys the Langmuir adsorption isotherm equation.
Publishing house:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
By (author) :
Sanatkumar B.S.
Number of pages:
52
Published on:
2018-02-02
Stock:
Available
Category:
Physical chemistry
Price:
35.90 €
Keywords:
Absorption, Corrosion, Hydrogen evolution, inhibition, maraging steel

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