Pure HIP-Re metal were prepared by powder metallurgy HIP method, and the microstructure and
tensile properties at room temperature and 2 000益of specimens after different heat treatment procedure. It can be
found that different heat treatment procedures affect the resulting tensile properties significantly. The results indicate
HIP-Re specimens heating treatment of 1 800益/1. 5h exhibit the greatest ultimate strength and elongation with 1 196
MPa and 19. 1% at room temperature, the high temperature 2 000益tensile properties of 69 MPa and 17%, respec鄄
tively. The PM Re metal microstructure exhibit fine and equiaxed grains with the size of 2 to 8 滋m, a mixtured of in鄄
tergranular and transgranular fracture is observed for HIP-Re metal fractured at room temperature, and the dominant
fracture mechanism at high temperature in the HIP-Re metal are intergranular fracture and slip during deformation
with a lot of porosity and micocracks occurring.