Experimental Investigation Of The Relationship Between Powder Geometry And Pore Ratio Of Mg Powders Sintered By FAST

Authors:

Sohret Melda Aydin (EGE University, Turkey),
Tugçe Tekin (EGE University, Turkey)

Abstract:

Commercial purity Mg powders were sintered at 300°C for 15 minutes with alternating current electric field-assisted sintering technique (FAST) under the pressure of 30 MPa after mechanical milling for 4-8-12-16-20 hours. Powder geometries, sizes and microstructural properties of the powders were investigated depending on the milling time. The relationship between the pore ratio and pore structure of the sintered samples and their powder geometries was investigated. Depending on the powder microstructure and geometry, the realization mechanism of FAST has been examined and evaluated with the results of compressive strength and hardness tests. The results were supported by optical microscope images, Scanning Electron Microscope (SEM) images. It has been determined that powder geometries (platy-spherical) -especially in the FAST method- have a great effect on sinterability and pore size, shape, and distribution.

DOI:

https://doi.org/10.59499/WP225370249