Creating in-situ alloys by welding — new perspectives for advanced materials and applications

Abstract The present study discusses the use of the Tandem GMAW process as a technology capable of postponement manufacturing in the production of specific alloys, using different commercially available alloys. The results show that the Tandem GMAW process can be successful applied to produce in-situ alloys for specific purposes by combining different alloys during the welding procedure, leading to advances in the manufacturing and development of new alloys. Based on this technique it is possible to map the binary or multicomponent alloys with their new metallurgical features that are different from the original metals or alloys, which can be deposited in various different proportions. In addition, this technique allows the optimization in multicomponent alloy systems, by finding suitable combinations of chemical elements from commercial alloys, and thereby increasing the range of options for the industrial sector. Furthermore, the industrial use of this technique will increase the prospects of these complex alloys and consequently there will be a need to study the effects of the compositional modifications of these complex alloys as well as to evaluate the phase transformations and precipitation kinetics of these new alloys.