As the process parameters in LPBF-process influence microstructure, density and hardness of produced parts, their on milling is suspected. For this reason new maraging tool steel alloy Specialis® has been investigated its machinability depending built parameters. The energy density, laser power scan speed examined. During forces are measured as well obtained surface roughness. results confirm i...

Relevance. High-strength steels are increasingly in demand modern industry for various applications. Maraging the primary material manufacture of most aircraft parts as well machine-building components. This type is low-carbon and rich nickel, which forms martensite when cooled demonstrates properties such high hardness, wear resistance, etc. The hardening process main factor affecting function...

Fatigue crack growth (FCG) has been studied assuming that ∆Keff is the driving force. However, effect of ligament on FCG rate not clear. Experimental-numerical work was developed in 18Ni300 maraging steel considering different load blocks with same initial ∆K. No observed experimentally, which explained by inexistence closure effects. In numerical transient effects were for plane stress state, ...