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Effect of cold-work...
Effect of cold-work on the Hall–Petch breakdown in copper based micro-components
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- Ghassemali, Ehsan, 1983- (författare)
- Jönköping University,JTH. Forskningsmiljö Material och tillverkning – Gjutning
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- Tan, Ming-Jen Tan (författare)
- School of Mechanical & Aerospace Engineering, Nanyang Technological University, Singapore
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- Wahb, Chua Beng (författare)
- Singapore Institute of Manufacturing Technology (SIMTech), Singapore
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- Lim, S.C.V. (författare)
- Materials Engineering, Monash University, Australia
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- Jarfors, Anders E.W. (författare)
- Jönköping University,JTH. Forskningsmiljö Material och tillverkning – Gjutning
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Jönköping University JTH Forskningsmiljö Material och tillverkning – Gjutning (creator_code:org_t)
- Elsevier, 2015
- 2015
- Engelska.
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Ingår i: Mechanics of materials. - : Elsevier. - 0167-6636 .- 1872-7743. ; 80, part A, s. 124-135
- Relaterad länk:
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https://hj.diva-port... (primary) (Raw object)
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http://hj.diva-porta...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Effects of substructural dimensions on the mechanical properties of micro-pins produced by an open-die micro-extrusion/forging process were studied. Micro-pins of diameter 0.3 mm were manufactured from copper strips, having different initial grain sizes. Micro-compression tests on the micro-pins revealed no significant size effect, even if the number of grains over the diameter of the micro-pins falls below its critical value. However, relaxation of the as-formed substructure using recovery annealing led to a surprising drop in the flow stress of the micro-pins. This was explained and attributed to the number of subgrains over the diameter of the micro-pins, showing the important role of subgrains rather than grains in determining the mechanical properties.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Microforming; Subgrain; Microstructure; Size effect;Dislocation Cells
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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