Title of article :
Microstructures and mechanical properties of TiAl alloys consolidated by spark plasma sintering
Author/Authors :
Couret، نويسنده , , Alain and Molénat، نويسنده , , Guy and Galy، نويسنده , , Jean and Thomas، نويسنده , , Marc، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
In the present study, the spark plasma sintering technique is used to densify pre-alloyed TiAl powders. Ti49Al47Cr2Nb2 and Ti51Al44Cr2Nb2B1 powders are sintered at temperatures ranging between 1100 °C and 1250 °C to yield various microstructures. Two-phased (γ + α2), duplex and lamellar microstructures are generated depending on the powder and the sintering temperature. Full compaction is achieved in a short period of time and the overall processing duration does not exceed 30 min. The resultant tensile properties at room temperature are very promising whereas a limited creep resistance was obtained at 700 °C
Keywords :
B. Mechanical properties at ambient temperature , B. Mechanical properties at high temperature , D. Microstructure , C. Sintering , based on TiAl , A. Titanium aluminides
Journal title :
Intermetallics
Journal title :
Intermetallics
