Title of article :
Importance of microstructural stability in creep resistance of lamellar TiAl alloys
Author/Authors :
Yamaguchi، نويسنده , , Masahiro and Zhu، نويسنده , , Hanliang and Suzuki، نويسنده , , Mayumi and Maruyama، نويسنده , , Kouichi and Appel، نويسنده , , Fritz، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Creep behavior of lamellar Ti–45Al–8Nb–0.2C (in mol%) alloy was studied paying special attention to microstructural degradation during creep. Minimum creep rate of Ti–45Al–Nb–C is reduced to 25% of that of binary Ti–45Al. Nb retards recovery of dislocations. Nb and C addition stabilizes lamellar microstructure. As a result, lower minimum creep rate and slower creep acceleration in tertiary creep are attained in the TiAl alloy with Nb and C.
Keywords :
Lamellar structure , strengthening , Microstructural degradation , Titanium Aluminide , Creep deformation
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
