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Evaluation Of The Mechanical Properties And Porosity Of The Ti And CoCr Alloys Prepared By AM Technology

  • : Robert Bidulsky1, Patrik Petrousek1, Jana Bidulska1, Ivana Katreničová2, Dušan Šimčák2
  • : 1Faculty of Metallurgy, Technical University of Kosice, 2Technical University of Kosice
  • : PDF Download
  • : 2017


The goal of the present work is to evaluate the mechanical properties and porosity of materials produced by Selective Laser Melting (SLM). The investigated materials are Ti6Al4V (90% Ti, 6% Al and 4% V) and CoCrW (60,5% Co, 28% Cr and 9% W). The samples for the static tensile test were made according to MPIF Standard 10. The static tensile test after heat treatment (Ti6Al4V: T = 820°C, t = 90 min, Ar; CoCrW: T = 1150°C, t = 60 min, Ar ) was carried out. Porosity evaluation was performed by two methods - Archimedes method and the stereological investigation of images taken from optical microscopy. The results show the significant inhomogeneity of the morphology and pores size in the investigated materials. The porosity of the alloy Ti6Al4V was about 4,4% and CoCrW about 2,9%.


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