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http://hdl.handle.net/11375/17930
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DC Field | Value | Language |
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dc.contributor.advisor | Ives, M.B. | - |
dc.contributor.advisor | Embury, J.D. | - |
dc.contributor.author | Hancock, Peter Colin | - |
dc.date.accessioned | 2015-08-19T20:14:57Z | - |
dc.date.available | 2015-08-19T20:14:57Z | - |
dc.date.issued | 1967-07 | - |
dc.identifier.uri | http://hdl.handle.net/11375/17930 | - |
dc.description.abstract | <p> The role of plastic deformation in the initiation and propagation of cracks in Cu-17Al alloy embrittled by liquid mercury has been studied. It is proposed that extensive plastic deformation and work hardening must occur at the crack-tip during propagation in order to raise the local flow stress to a critical level at which the maximum normal stress is equal to the cohesive strength. A crack initiation mechanism is proposed involving grain boundary diffusion enhanced by the stress concentration at the head of dislocation pile-ups at the grain boundary. Micro-cracks are formed at the weakened grain boundary and a period of stable crack growth made over a period of increasing applied stress may be necessary before the crack is long enough to become unstable.</p> | en_US |
dc.language.iso | en_US | en_US |
dc.subject | embrittlement, alloy, liquid, mercury, cracks, boundary, stress | en_US |
dc.title | Embrittlement of CU-17Al Alloy By Liquid Mercury | en_US |
dc.type | Thesis | en_US |
dc.contributor.department | None | en_US |
dc.description.degreetype | Thesis | en_US |
dc.description.degree | Master of Science (MSc) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Hancock_Peter_C._1967Jul_Masters..pdf | 7.45 MB | Adobe PDF | View/Open |
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