Open AccessOn the formation of AlSiMgCu/quasicrystal powder composite single tracks by selective laser melting
Author(s) -
Dmitriy Yu. Ozherelkov,
Anton Yu. Nalivaiko,
Alexander A. Gromov,
D. O. Solodov,
А. А. Комиссаров,
Alexander S. Shinkaryov,
A. Morozova
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1014/1/012032
Subject(s) - selective laser melting , materials science , quasicrystal , composite number , indentation hardness , selective laser sintering , composite material , sintering , laser , range (aeronautics) , microstructure , optics , crystallography , chemistry , physics
The process of selective laser melting (SLM) of an Al-Si-Mg-Cu powder composite with the addition of quasicrystal reinforcements under conditions of a limited powder amount was investigated. The morphology and microhardness of the obtained scan single tracks were discussed, and the optimal sintering parameters were found to be in the Linear Energy Density (LED) range 0.21-0.30 J/mm. The following SLM parameters: P = 370 W and v = 1650 mm/s given the optimal characteristics of scan single tracks geometry with less defects. The obtained composites exhibited an improved hardness with the highest values of 235 HV with the 8% of reinforcements in the powder mixture.