Key words
in preparation
in preparation
in preparation
Ag matrix composites; SiC nanofiber; Load transfer; Surface modification
Multilayer MXene; Ag metal matrix composites; Interfacial bonding; Tensile property; Electrical and thermal conductivity
L-PBF; β-Ti alloys; Solid solution strengthening; Microstructural evolution; Cytocompatibility
Cu/graphite/carbon fibers hybrid composites; Microstructure; Thermalproperties; Spark plasma sintering
Laser powder bed fusion (L-PBF); 316L stainless steel; hetero-agglomeration method; zeta potential; oxide layer
Metal matrix composites (MMCs); Graphene oxide; Trace alloying; Interface; Physical properties
laser powder bed fusion Ti; X-ray computed tomography; local layer porosity; maximum pore size; tensile properties
FD-POEM; Plasma spheroidization (PS); Microstructure evolution; MoSiBTiC alloys; Oxygen content
Under preparation
Ultrafine bubbles; Additive manufacturing; Freeze-dry pulsated orifice ejection method; Powder fabrication; Slurry dispersibility
Under preparation
Under preparation
In this study, the effect of oxidation on the properties of Zr-doped 316L stainless steel powder was investigated for application to laser powder bed fusion (L-PBF). The collapse angle and laser absorptivity of 316L powder were improved by oxidation. The wetting angle of the 316L droplet was decreased by Zr addition and oxidation, which may contribute to the improvement of processability in L-PBF.
MXene (Ti3C2Tx) was incorporated into Ti-6Al-4V powders using a hetero-agglomeration process. The resulting MXene/Ti-6Al-4V mixed powder exhibited favorable processability for L-PBF. After the L-PBF process, the MXene decomposed and dissolved into the Ti matrix, resulting in a carbon super-saturated Ti-6Al-4V build consisting of ultrafine martensite structures with high strength.
This study utilized plasma spheronization (PS) treatment to strengthen the MoSiBTiC powders prepared by the freeze-dry pulsed orifice ejection method (FD-POEM). Dense and spherical MoSiBTiC powders with uniform elemental distribution were obtained from porous FD-POEM particles. It was found that the combination of FD-POEM and PS was an effective method to produce high quality refractory powders with various compositions for L-PBF.
Under preparation
Small amount of Zr was alloyed to improve the laser absorptivity and flowability of CuCr alloy powders. Dense CuCrZr alloy builds were thus fabricated by laser powder bed fusion (L-PBF). Through post-treatments of hot isostatic pressing, solution heat treatment and aging, submicron Cr particles were precipitated, leading to the CuCrZr alloy builds with high-strength and ductility.