定向多孔GH3536制备及其力学性能

Oriented porous superalloy was prepared by freeze-casting with GH3536 powder as raw material and guar gum/CMC-Na as stabilizers. The results show that slurries could be stabilized by adding 0.4wt%~1wt% of guar gum or 1wt%~3wt% of sodium carboxymethylcellulose; as the solid loading increases from 10vol% to 30vol%, the width of oriented pore decreases from 308 to 198 μm and the wall thickness increases from 81 to 223 μm, with the axial and radial compressive strength improving from 10.72 and 9.2 MPa to 75.02 and 78.49 MPa, respectively. The fabricated oriented porous superalloy is a plastic material with the ability of absorbing energy.