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

被引：0
|
作者：
Moustafa Noureddine
Omar Allaoui
机构：
[1] University of Laghouat,Department of Mechanical Engineering
来源：
The International Journal of Advanced Manufacturing Technology | 2020年 / 106卷
关键词：
Corrosion; Tempering; HAZ; X70; Electrochemical polarization; EIS;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
引用
收藏
页码：2689 / 2701
页数：12
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