The results of experiments on selective laser alloying of titanium powder on a MELTMASTER 3D-550 device manufactured by NPO TsNIITMASH JSC in order to obtain a metal with moderate porosity are presented. After fabrication of specimens in tension, the density was measured, the relative density was calculated as a percentage of the density of compact titanium, and the mechanical properties of the obtained material were determined: conditional yield stress, ultimate tensile strength, elongation after rupture, and relative neck narrowing. With an increase in the scanning speed from 300 to 700 mm/s, the density of the product decreases at a radiation power of 120 W from 97.6% to 90.7%. It was revealed that the maximum value of the ultimate tensile strength of 437 MPa is achieved at a scanning speed of 300 mm/s, at the same speed the maximum value of the conventional yield stress of 398 MPa and the maximum values of plastic properties are achieved.
Translated title of the contributionPHYSICO-MECHANICAL PROPERTIES OF MODERATE POROUS TITANIUM AFTER SELECTIVE LASER FUSION
Original languageRussian
Pages (from-to)28-31
Number of pages4
JournalЛитейщик России
Issue number3
Publication statusPublished - 2021

    Level of Research Output

  • VAK List

    GRNTI

  • 53.00.00 METALLURGY

ID: 21197676