INVESTIGATION OF MULTI-STEP THERMO-MECHANICAL TREATMENT OF CAN-FORGED TiAl-BASED ALLOY

金属学报(英文版), 1997, 10(4): 369-374.

INVESTIGATION OF MULTI-STEP THERMO-MECHANICAL TREATMENT OF CAN-FORGED TiAl-BASED ALLOY

Y.H. He , B. Y. Huang , Y. Liu and Y.X. Liu (Powder Metallurgy Research Institute , Central South University of Technology , Changsha 410083 , China)

Keywords： TiAl-based alloy , null , null

The effects of a new technology, multi-step thermo-mechanical treatment, on the microstructure, deformation substructure and mechanical properties at ambient and elevated tempemture of can-forged Ti-33 Al-3 Cr-0.5Mo (wt%) Alloy were investigated.The results show that, after multi-step thermo-mechanical treatment of can-forged specimens, homogeneous, fine microstructures can be obtained in the whole TiAl-based alloy specimens. Furthermore, the specimen with homogeneous and fine full lamellae microstructure demonstrutes excellent comprehensive mechanical properties at ambient and elevated temperature.

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INVESTIGATION OF MULTI-STEP THERMO-MECHANICAL TREATMENT OF CAN-FORGED TiAl-BASED ALLOY

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