MI Guofa
,
LI Hongyu
,
LIU Xiangyu
,
WANG Kuangfei
钢铁研究学报(英文版)
The porous superalloy materials with hollow spherical pores were fabricated by using metal powder sintering process. The scanning electron microscope (SEM) observation was applied to the test samples and it revealed that the pores of the porous material exhibited a uniform distribution and the apertures were of same size in principle. The sintering necks appeared between adjacent particles on metal skeleton after sintering. The mechanical properties of the test samples were analyzed and the result showed that this kind of materials possessed excellent energy absorption capability, and the compression resistance decreased with increasing the porosity and aperture.
关键词:
porous superalloy material;metal powder sintering;hollow spherical pore;oriented linear pore
