Numerical Model Developed for Thermo-Mecahnical Analysis in AlCrFeMnNiHf0.05–Armox 500 Steel Welded Joint

Abstract

High entropy alloys are a new category of materials that contain at least four main chemical elements. One of the main advantages over the traditional alloys is the ability to maintain their properties at low or high temperatures. Researchers have investigated the possibility of welding these alloys so that they can be used in industrial applications. Good results have been obtained by welding butt joints of thin sheets, without the use of filler materials. In this paper it is investigated the possibility of welding overlap joints, with applications in the military field, of medium-thickness plates of AlCrFeMnNiHf0.05 high entropy alloy on an Armox 500 steel support plate, using filler materials available on the market. The research focuses on the numerical simulation of three welding processes commonly used in on-site repair operations, namely manual metal arc, metal inert gas, and tungsten inert gas.