Laser Powder Bed Fusion of 25CrMo4 Steel: Metallurgy & Mechanics #Sciencefather #Researcherawards
Introduction The evolution of additive manufacturing has enabled precise control over microstructural and mechanical properties , particularly in advanced steels such as 25CrMo4 . This study explores how laser-based powder bed fusion of metals (PBF-LB/M) influences material outcomes when key printing parameters—laser power, scan speed, and layer thickness—are systematically varied. By examining how volumetric energy density (VED) and linear energy density (LED) affect hardness, porosity , and mechanical strengths, the research provides foundational insights into achieving optimal metallurgical integrity in 3D-printed high-strength steels. The findings highlight that balanced energy inputs are critical for improving performance while avoiding brittleness. Influence of Energy Density on Metallurgical Characteristics This topic investigates how fluctuations in VED and LED modify the metallurgical behavior of 25CrMo4 steel during the PBF-LB/M process. Higher VED values promote full me...