Ti

2

AlNb pre-alloyed powders were prepared by plasma rotating electrode process (PREP) and electrode induction melting gas atomization (EIGA) respectively

and the pre-alloyed powders were characterized. Ti

2

AlNb alloy was prepared by hot isostatic pressing (HIP) process

and the effects of powder preparing process on microstructure and mechanical properties of Ti

2

AlNb alloy were investigated. The experimental results show that the compaction density of Ti

2

AlNb powder prepared by EIGA method is higher than that of PREP method. The forming res

earch of Ti

2

AlNb impeller was carried out under the regime of 1030 ℃/140 MPa/3 h based on the powder metallurgy HIP near net shape technology. The finite element simulation results show that the higher the powder compaction density

the smaller the deformation degree of the HIPed component. Ti

2

AlNb pre-alloyed powder prepared by EIGA with higher compaction density is preferred to prepare powder metallurgy complex components.