The researches PhD students Rustam Kyarimov, Iuliia Sadykova, Alexander Frantsuzov, Research Engineer Eugene Statnik, Assistant Professor Alexey Salimon, Professor Alexander Korsunsky from the Hierarchically Structured Materials Laboratory, HSM (Skoltech Center for Digital Engineering) published the paper «Factorial-experimental investigation of LPBF regimes for VZh159 nickel superalloy grain structure and structural strength optimization» in the journal «Frontiers in Materials».

Rustam Kyarimov, first author of the study, PhD students from the Hierarchically Structured Materials Laboratory, HSM (Skoltech Center for Digital Engineering)

“Our research focuses on optimizing the parameters of the laser powder bed fusion (LPBF) process to enhance the mechanical properties of the Russian nickel-based superalloy VZh159 (similar to Inconel 718), which is widely used in the aerospace industry. We studied the influence of laser power and scanning speed on tensile strength, yield strength, and ductility of the material. Experimentally, it was determined that the optimal parameters are a laser power of 250 W, a scanning speed of 600 mm/s, and a hatch distance of 0.12 mm, providing the best combination of high strength and ductility. The results also show that changing these parameters significantly affects the microstructure of the alloy, including the formation of the strengthening phase γ', which is crucial for improving production efficiency and material quality.”

The full article is available at the link.