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The International Journal of Advanced Manufacturing Technology

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02-01-2020 | ORIGINAL ARTICLE

Effect of tempering on mechanical proprieties and corrosion behavior of X70 HSLA steel weldments

Authors: Moustafa Noureddine, Omar Allaoui

Published in: The International Journal of Advanced Manufacturing Technology | Issue 7-8/2020

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Abstract

The aim of this work is to study the effect of tempering on the corrosion behavior of X70 HSLA (high-strength low alloy) steel weldments in aerated 1 M sulfuric acid solution. Two different temperatures, 450 °C and 650 °C, were selected to investigate the tempering effect on samples used in this study. Through the results obtained from microstructural characterization, tensile tests, microhardness tests, and potentiodynamic tests, it was observed that the mechanical properties were optimal after tempering. Additionally, the polarization resistance increased after tempering by reduction of factors that induce corrosion, such as residual stress. Electrochemical impedance spectroscopy was also performed to clear the mechanism and kinetics of corrosion.

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Title: Effect of tempering on mechanical proprieties and corrosion behavior of X70 HSLA steel weldments
Authors: Moustafa Noureddine
Omar Allaoui
Publication date: 02-01-2020
Publisher: Springer London
Published in: The International Journal of Advanced Manufacturing Technology / Issue 7-8/2020
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI: https://doi.org/10.1007/s00170-019-04810-y

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