COMPLEX STACKING-FAULT ENERGY OF CR-ALLOYED GAMMA-TIAL

Authors
ZHENG JG LI Q LIU ZG FENG D FROMMEYER G
Citation
Jg. Zheng et al., COMPLEX STACKING-FAULT ENERGY OF CR-ALLOYED GAMMA-TIAL, Physics letters. A, 196(1-2), 1994, pp. 125-127
Citations number
11
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
196
Issue
1-2
Year of publication
1994
Pages
125 - 127
Database
ISI
SICI code
0375-9601(1994)196:1-2<125:CSEOCG>2.0.ZU;2-A
Abstract
The 1/2 [<1(1)over bar>0] extended dislocations were first observed in Cr-alloyed gamma-TiAl lamellae of the Ti-45 at.% Al-3 at.% Cr alloy b y high resolution electron microscopy. The equilibrium width and the e nergy of the complex stacking fault (CSF) ribbon bordered by two 1/6 [ <1(2)over bar>1\-type partial dislocations were determined experimenta lly. The results show that Cr addition drastically decreases the CSF e nergy in gamma-TiAl.