Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments

This research involves studying the mechanical properties and corrosion behavior of “low carbon steel” (0.077wt% C) before and after welding using Arc, MIG and TIG welding. The mechanical properties include testing of microhardness, tensile strength, the results indicate that microhardness of TIG,...

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Autores principales:	Rana A. Majed, Majid H. Abdulmajeed, Mohamed Mahdy
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2017
Materias:	Low carbon steel Acr MIG and TIG Welding mechanical properties of weldments corrosion behavior of weldments Tafel extrapolation Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/58a30f7fe36046c194f7a162dec7e226
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spelling	oai:doaj.org-article:58a30f7fe36046c194f7a162dec7e2262021-12-02T10:52:26ZMechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments1818-11712312-0789https://doaj.org/article/58a30f7fe36046c194f7a162dec7e2262017-12-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/161https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 This research involves studying the mechanical properties and corrosion behavior of “low carbon steel” (0.077wt% C) before and after welding using Arc, MIG and TIG welding. The mechanical properties include testing of microhardness, tensile strength, the results indicate that microhardness of TIG, MIG welding is more than arc welding, while tensile strength in arc welding more than TIG and MIG. The corrosion behavior of low carbon weldments was performed by potentiostat at scan rate 3mV.sec-1 in 3.5% NaCl to show the polarization resistance and calculate the corrosion rate from data of linear polarization by “Tafel extrapolation method”. The results indicate that the TIG welding increase the corrosion current density and anodic Tafel slop, while decrease the polarization resistance compared with unwelded low carbon steel. Cyclic polarization were measured to show resistance of specimens to pitting corrosion and to calculate the forward and reveres potentials. The results show shifting the forward, reverse and pitting potentials toward active direction for weldments samples compared with unwelded sample. Rana A. MajedMajid H. AbdulmajeedMohamed MahdyAl-Khwarizmi College of Engineering – University of BaghdadarticleLow carbon steelAcrMIG and TIG Weldingmechanical properties of weldmentscorrosion behavior of weldmentsTafel extrapolationChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 9, Iss 1 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Low carbon steel Acr MIG and TIG Welding mechanical properties of weldments corrosion behavior of weldments Tafel extrapolation Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Low carbon steel Acr MIG and TIG Welding mechanical properties of weldments corrosion behavior of weldments Tafel extrapolation Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Rana A. Majed Majid H. Abdulmajeed Mohamed Mahdy Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments
description	This research involves studying the mechanical properties and corrosion behavior of “low carbon steel” (0.077wt% C) before and after welding using Arc, MIG and TIG welding. The mechanical properties include testing of microhardness, tensile strength, the results indicate that microhardness of TIG, MIG welding is more than arc welding, while tensile strength in arc welding more than TIG and MIG. The corrosion behavior of low carbon weldments was performed by potentiostat at scan rate 3mV.sec-1 in 3.5% NaCl to show the polarization resistance and calculate the corrosion rate from data of linear polarization by “Tafel extrapolation method”. The results indicate that the TIG welding increase the corrosion current density and anodic Tafel slop, while decrease the polarization resistance compared with unwelded low carbon steel. Cyclic polarization were measured to show resistance of specimens to pitting corrosion and to calculate the forward and reveres potentials. The results show shifting the forward, reverse and pitting potentials toward active direction for weldments samples compared with unwelded sample.
format	article
author	Rana A. Majed Majid H. Abdulmajeed Mohamed Mahdy
author_facet	Rana A. Majed Majid H. Abdulmajeed Mohamed Mahdy
author_sort	Rana A. Majed
title	Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments
title_short	Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments
title_full	Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments
title_fullStr	Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments
title_full_unstemmed	Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments
title_sort	mechanical properties and corrosion behavior of low carbon steel weldments
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2017
url	https://doaj.org/article/58a30f7fe36046c194f7a162dec7e226
work_keys_str_mv	AT ranaamajed mechanicalpropertiesandcorrosionbehavioroflowcarbonsteelweldments AT majidhabdulmajeed mechanicalpropertiesandcorrosionbehavioroflowcarbonsteelweldments AT mohamedmahdy mechanicalpropertiesandcorrosionbehavioroflowcarbonsteelweldments
_version_	1718396531246104576

Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weldments

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