Dissimilar welding applications and evaluation of fatigue behaviour of welded joints: an overview

Recently, the welding of dissimilar metals has attracted great interest due to its widespread use in engineering building applications. In this article, welding methods of dissimilar metal joints containing different metal types with different chemical compositions are examined and their fatigue behavior is evaluated. In dissimilar metal welds, the difference in chemical composition affects the weldability and mechanical properties of the joints. In this study, the factors affecting the fatigue strength of dissimilar welded joints are described. Since welded structures can be used in sensitive and risky places, welding quality and mechanical properties of the weld are extremely important. In the research, a detailed literature review was presented by evaluating the latest studies on the mechanical properties of dissimilar welded joints such as fatigue strength, tensile strength, hardness, and the latest developments in the welding of different metals were reviewed. This study, which deals with the latest developments in the joining of different metal alloy combinations, is expected to increase the interest of the researchers in the future.