Thermal Reversibility of the Flow Stress in Single Crystal Titanium-56 Aluminum

The [021] oriented samples were also analyzed in order to observe ordinary dislocation motion without the presence of superdislocations. It was found that all ordinary dislocations observed were mostly 60°, mixed dislocations, with relatively few screw ordinary dislocations. At room temperature, screw and mixed ordinary dislocations were observed. At elevated temperature, mostly mixed ordinary dislocations were observed. The re-strained sample showed many mixed characters segments observed along the dislocation line. It is suggested that the screw portion of these mixed dislocations cross-slipped from the primary {111} plane to another {111} plane.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Materials Science and Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Stucke, Monica Silva

Contributors dc:contributor

• Ian Robertson

• Engineering, Metallurgy

Language dc:language

eng

Identifier

(MiAaPQ)AAI9990151

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/82935