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Enhanced ductility ...
Enhanced ductility and strength in a cast Al–Mg alloy with high Mg content
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- Liu, Z. (författare)
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China
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- Sun, J. (författare)
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China
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- Yan, Z. (författare)
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, Hebei 066004, China
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- Lin, Y. (författare)
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China
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- Liu, M. (författare)
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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- Roven, H. J. (författare)
- Department of Materials Science and Engineering, Norwegian University of Science and Technology, Trondheim, 7491, Norway
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- Dahle, Arne (författare)
- Jönköping University,JTH, Material och tillverkning
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: Materials Science & Engineering. - : Elsevier. - 0921-5093 .- 1873-4936. ; 806
- Relaterad länk:
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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
- Cast Al–Mg alloys with high Mg content have attracted considerable interest as a result of exceptionally low mass density and enhanced Mg solid-solution strengthening effect. However, poor ductility in this class of cast Al–Mg alloys originating from the increased amount of brittle Al3Mg2 phase presents a challenge. This work aims to improve ductility of a cast Al-10 wt%Mg alloy by prolonging time and/or increasing temperature during solid-solution treatment, hence minimizing the amount of the Al3Mg2 phase. The amounts of Al3Mg2 decrease and the concentrations of solute Mg increase with prolonging time and/or increasing temperature, improving both ductility and strength. Solid-solution treatment at 425 °C for 9 h or at 438 °C for 3 h induces complete dissolution of the Al3Mg2 phase, achieving an average uniform elongation of ~27% accompanied by an average 0.2% offset yield strength of ~186 MPa. The mechanisms improving both ductility and strength are discussed.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- Aluminum alloys
- Casting
- Ductility
- Solid-solution treatment
- Strength
- Binary alloys
- Solid solutions
- Temperature
- Complete dissolution
- Enhanced ductility
- Increasing temperatures
- Mg content
- Phase present
- Solid solution strengthening
- Solid solution treatment
- Uniform elongation
- Magnesium alloys
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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