Study of variability phenomena during direct metal deposition of nickel based superalloy on residual porosity and microhardnessAlexander Khaimovich, Maxim Oleynik, Andrey Balyakin, Evgeny Zlobin, Maria Kudriashova and Ekaterina NosovaEPJ Web Conf., 318 (2025) 01009DOI: https://doi.org/10.1051/epjconf/202531801009