Tailoring the Structure of Titanium and Iron-Nickel Alloys to Obtain Functional Properties Using Additive Manufacturing

Abstract

This main advantages of additive manufacturing compared to traditional metallurgical technologies are discussed. A classification of methods of powder bed fusion for 3D printing of metallic materials is presented. The main types of defects and methods for their elimination are considered. The effect of the energy input parameters on formation of structure and mechanical properties is analyzed using titanium alloy Ti – 6Al – 4V as an example. The works of the authors on the possibilities of creating such functional properties of titanium and iron-nickel alloys as corrosion resistance and heat resistance by tailoring the formation of crystallographic texture and the precipitation of second phases by varying the energy input parameters during powder bed fusion including selective laser melting and electron beam melting are reviewed.