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Microstructure vers...
Microstructure versus substructure size effect
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- Ghassemali, Ehsan (author)
- Jönköping University,JTH. Forskningsmiljö Material och tillverkning – Gjutning
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- Jarfors, Anders E.W. (author)
- Jönköping University,JTH. Forskningsmiljö Material och tillverkning – Gjutning
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- Tan, Ming-Jen (author)
- School of Mechanical & Aerospace Engineering, Nanyang Technological University
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- Chua, Beng Wah (author)
- Singapore Institute of Manufacturing Technology (SIMTech)
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Jönköping University JTH Forskningsmiljö Material och tillverkning – Gjutning (creator_code:org_t)
- American Institute of Physics (AIP), 2016
- 2016
- English.
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In: AIP Conference Proceedings. - : American Institute of Physics (AIP). - 0094-243X. - 9780735414273 ; , s. 1-6
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Abstract
Subject headings
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- In metal deformation, size effect is generally attributed to the interactive effect of grain size and specimen dimension. This work shows, however, that relative substructure dimensions should also be considered. Micro-compression tests on the micro-pins having different grain sizes revealed no significant size effect with respect to the mechanical behavior, even if the number of grains over the diameter of the micro-pins falls below its critical value. To justify the reason laying under this fact, a recovery annealing cycle was applied on the micro-pins to change the substructure properties without altering the mean grain size. A surprising drop in the flow stress of the recovery-annealed micro-pins implied the importance of considering subgrain size rather than grain size over the diameter of component for the size effect investigation.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Publication and Content Type
- ref (subject category)
- kon (subject category)
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