A study of dislocation structures in bulk-strained and in situ TEM strained nickel aluminide alloys

In the research work presented in this thesis, the dislocation structures in bulk strained and in situ TEM strained alloys of hypo-stoichiometric Ni$\sb3$Al with and without boron, and hyper-stoichiometric Ni$\sb3$Al with boron have been studied. Bulk samples were deformed in tension to 3% and 9% strain and the resulting dislocation structure studied using transmission electron microscopy (TEM). Particular emphasis has been placed on the dislocation structure vicinal to grain boundaries and transgranular cracks. At both strain levels, the dislocation structures are similar near the grain boundaries and transgranular cracks, and are similar to those observed in in situ TEM straining studies.

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

1992

Author dc:creator

• Subramanian, Raja

Contributors dc:contributor

• Birnbaum, Howard K.

• Engineering, Metallurgy
• Engineering, Materials Science

Statement dc:rights

• Copyright 1992 Subramanian, Raja

Language dc:language

eng

Identifier

AAI9215890
(UMI)AAI9215890

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/19992