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Direct Laser Deposition of 14Cr Oxide Dispersion Strengthened Steel Powders Using Y<sub>2</sub>O<sub>3</sub> and HfO<sub>2</sub> Dispersoids
Barton Mensah Arkhurst, Jin-Ju Park, Chang-Hoon Lee, Jeoung Han Kim
Korean J. Met. Mater. 2017;55(8):550-558.   Published online 2017 Aug 1
DOI: https://doi.org/10.3365/KJMM.2017.55.8.550

Abstract
This study investigated the feasibility of using HfO2 as a dispersoid in the additive manufacturing process, compared to Y2O3. The effect of pre-annealing treatment was investigated too. Scanning electron microscopy (SEM) analyses revealed unusually coarse deposition layers for both the HfO2 and Y2O3 dispersed oxide dispersion strengthed (ODS) steels, in..... More

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