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Assessment of Mecha...
Assessment of Mechanisms for Particle Migration in Semi-Solid High Pressure Die Cast Aluminium-Silicon Alloys
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- Law, Madeleine (författare)
- KTH,Processer,Department of Materials Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
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- Hulme-Smith, Christopher, 1989- (författare)
- KTH,Processer,Powder metallurgy,Department of Materials Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
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- Matsushita, Taishi (författare)
- Jönköping University,JTH, Material och tillverkning
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- Jönsson, Pär (författare)
- KTH,Processer,Department of Materials Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
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(creator_code:org_t)
- 2020-05-25
- 2020
- Engelska.
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Ingår i: Journal of manufacturing and materials processing. - Basel, Switzerland : MDPI AG. - 1042-6914 .- 1532-2475 .- 2504-4494. ; 4:51
- Relaterad länk:
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https://doi.org/10.3...
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https://kth.diva-por... (primary) (Raw object)
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- In semi-solid metal high pressure die casting and in conventional high pressure die casting, it is common to find a defect band just below the surface of the component. The formation of these bands is not fully understood. However, there are several theories as how they occur, and it has been suggested that segregation is caused by the migration of aluminium-rich externally solidified crystals. In the present work the formation of these bands is investigated theoretically by reviewing suitable potential mechanisms for the migration of such crystals. Two mechanisms are identified as the most probable: Saffman lift force and the Mukai-Lin-Laplace effect. However, it was not possible to identify which of these two mechanisms acted in the case studies. Further testing is required to identify the mechanism that is causing the migration of the aluminium globules and suitable tests are proposed.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- semi-solid metals; aluminium-silicon alloys; particle migration; high pressure die casting
- Metallurgical process science
- Metallurgisk processvetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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