Abstract
This letter reports the line tension of 1/2<110] screw dislocations on cross-slip planes calculated for gamma-TiAl. The results show that the line tension is highly anisotropic on the cross-slip planes, with a maximum on the (001) plane and a minimum on {110} planes. The line tension on the primary glide plane {111} is intermediate. Three sets of elastic constants were used to calculate the line tension. The ratio of maximum to minimum line tensions ranges from 2.19 to 2.84. Screw 1/2<110] dislocations do not possess a negative line tension, which rules out the possibility of cross-slip caused by elastic instability. The role of line tension anisotropy in driving the cross-slip of screw dislocations is discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
