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Experimental Investigation of Mechanical Properties of Dissimilar Welding of Metals (A case of Mild Steel with Galvanized Steel)
Subject area: Science,Engineering and Technology · Area of research: Mechanical Engineering
Abstract
In engineering work, sometimes it is essential to join two dissimilar metals for reasons such as cost effectiveness, convenient to mix and match for mechanical properties benefit. This study focused on investigating the mechanical properties of post weld heat treatment of dissimilar welded joint (mild steel with galvanized steel). The aim of this work is to carry out post weld heat treatment of two dissimilar metals welded together to determine its effect on the mechanical properties (Tensile strength and impact strength) of the welded joint. The welding process of mild steel and galvanized steel was done using Electric Arc welding process after which heat treatment process was employed using normalizing and quenching. Mechanical tests (Tensile test and impact test) were carried out after the post weld heat treatment processes. The research revealed that the heat-treated samples had better tensile and impact strength. The normalized heat treatment sample has higher energy at break to be 46. 46.83347 J for a load of 5015.09383 N for tensile test and higher impact strength of 61.35 J. This implies that where tensile and impact strength is required then, heat treatment (normalizing) should be carried out after the welding processes otherwise quenching can be employed. This research contributes to knowledge in the area of application of the homogeneity of the two different metals in design, fabrication and manufacturing of interchangeable components in developing countries.
Keywords
Dissimilar, Heat treatment, Mechanical Properties, Mild Steel, galvanized Steel Welding.
References
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How to cite this paper
@article{1709739,
author = {Omojogberun, Y. V.},
title = {Experimental Investigation of Mechanical Properties of Dissimilar Welding of Metals (A case of Mild Steel with Galvanized Steel)},
journal = {Iconic Research And Engineering Journals},
year = {2025},
volume = {9},
number = {1},
pages = {1752-1756},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1709739.pdf},
abstract = {In engineering work, sometimes it is essential to join two dissimilar metals for reasons such as cost effectiveness, convenient to mix and match for mechanical properties benefit. This study focused on investigating the mechanical properties of post weld heat treatment of dissimilar welded joint (mild steel with galvanized steel). The aim of this work is to carry out post weld heat treatment of two dissimilar metals welded together to determine its effect on the mechanical properties (Tensile strength and impact strength) of the welded joint. The welding process of mild steel and galvanized steel was done using Electric Arc welding process after which heat treatment process was employed using normalizing and quenching. Mechanical tests (Tensile test and impact test) were carried out after the post weld heat treatment processes. The research revealed that the heat-treated samples had better tensile and impact strength. The normalized heat treatment sample has higher energy at break to be 46. 46.83347 J for a load of 5015.09383 N for tensile test and higher impact strength of 61.35 J. This implies that where tensile and impact strength is required then, heat treatment (normalizing) should be carried out after the welding processes otherwise quenching can be employed. This research contributes to knowledge in the area of application of the homogeneity of the two different metals in design, fabrication and manufacturing of interchangeable components in developing countries.},
keywords = {Dissimilar, Heat treatment, Mechanical Properties, Mild Steel, galvanized Steel Welding.},
month = {July},
}