PT Journal
AU Schmidova, E
   Hojka, P
   Culek, B
   Klejch, F
   Schmid, M
TI Dynamic Strength and Anisotropy of Dmls Manufactured Maraging Steel
SO Communications - Scientific Letters of the University of Zilina
PY 2019
BP 35
EP 39
VL 21
IS 3
DI 10.26552/com.C.2019.3.35-39
WP https://komunikacie.uniza.sk/artkey/csl-201903-0006.php
DE DMLS technology; 3D printing; maraging steel; impact tensile tests
SN 13354205
AB This paper deals with maraging steel, as a prospective material for the 3D printed lightened structural parts of transport means. Direct Metal Laser Sintering technology was tested for creation of a thin-wall structure with defined internal geometry. The referential samples prepared by the DMLS technology were examined under quasi-static and high strain rate loading using a servo-hydraulic testing machine at strain rates up to 1400 s-1. Microstructural analyses served for evaluation of structural homogeneity and metallurgy quality, including the influence of crystallization gradient. The stabile ductile fracture mode was proven by fractography analyses, even at a maximal strain rate. The post-impact tests were conducted to evaluate the local residual plasticity by indentation tests.
ER