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Superplasticity in the zinc-1 per cent aluminum system Turner, David Malcolm
Abstract
A Zn - 1 wt % Al alloy has been studied in an attempt to relate tensile data and metallographic observations to assumed modes of superplastic deformation. Tensile testing, was carried out at a constant crosshead speed to determine the stress versus strain rate relationships as a function of grain size and temperature. Further analysis included activation energy determinations, low temperature (-100°C) deformation behavior, deformation grain growth characteristics, and surface and internal metallography. Stage II deformation was consistent with a process combining boundary sliding and migration and boundary diffusion. Deformation in stage I was characterized by a low strain rate sensitivity and a variable activation energy. Normal slip processes were operative during stage III deformation. Deformation grain growth and anisotropic grain shape changes were pronounced and variable in stages I and II.
Item Metadata
Title |
Superplasticity in the zinc-1 per cent aluminum system
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1971
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Description |
A Zn - 1 wt % Al alloy has been studied in an attempt to relate tensile data and metallographic observations to assumed modes of superplastic deformation. Tensile testing, was carried out at a constant crosshead speed to determine the stress versus strain rate relationships as a function of grain size and temperature. Further analysis included activation energy determinations, low temperature (-100°C) deformation behavior, deformation grain growth characteristics, and surface and internal metallography.
Stage II deformation was consistent with a process combining boundary sliding and migration and boundary diffusion. Deformation in stage I was characterized by a low strain rate sensitivity and a variable activation energy. Normal slip processes were operative during stage III deformation.
Deformation grain growth and anisotropic grain shape changes were pronounced and variable in stages I and II.
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Genre | |
Type | |
Language |
eng
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Date Available |
2011-04-04
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0078968
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.