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http://hdl.handle.net/11375/20161
Title: | The Influence of Interfaces on Dislocation Mobility |
Authors: | Shewfelt, Robert S. W. |
Advisor: | Embury, J. D. |
Department: | Metallurgy and Materials Science |
Keywords: | interfaces, dislocation, mobility, stress field |
Publication Date: | Feb-1969 |
Abstract: | <p> A numerical method was developed to calculate the passing stress of pile-ups in a general internal stress field. This method was used to calculate the passing stress for a pile-up of like edge dislocations for a sinusoidal internal stress field, a simple tilt wall, and a Van der Merwe net of misfit dislocations. The passing stresses for single dislocation for these internal stress fields were also calculated.</p> <p> The Burgers vectors of a common set of misfit dislocations at the interface of Ni3Ge particles in a Ni matrix were determined. The surface slip lines of a directionally solidified sample of Ni-20% Ge alloy tested in compression were examined.</p> |
URI: | http://hdl.handle.net/11375/20161 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Shewfelt_Robert_S._1969Feb_Masters..pdf | 3.5 MB | Adobe PDF | View/Open |
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