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Microstructure, texture and mechanical properties of al alloy a380 prepared by directional solidification method
Jönköping University, School of Engineering, JTH, Materials and Manufacturing. Discipline of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, India.
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0001-6481-5530
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0002-0101-0062
2019 (English)In: Manufacturing Sciences and Technologies IX: 9th International Conference on Manufacturing Science and Technology (ICMST 2018), Trans Tech Publications, 2019, Vol. 287, p. 18-23Conference paper, Published paper (Refereed)
Abstract [en]

The mechanical properties of Al-Si alloys are affected by several microstructural features such as secondary dendrite arm spacing (SDAS), size and shape of eutectic Si-particles, presence of intermetallics as well as by porosity. In the current study, Al-Si-Cu alloy A380 was prepared by a unique directional solidification method to produce samples with two different SDAS of 9 μm and 27 μm. The lower solidification rate resulted in larger SDAS, larger grain size, larger eutectic Si and larger intermetallics including Fe-rich β phase. The microstructure with higher solidification rate was found to be finer and more homogeneous with smaller eutectic Si and intermetallics. The specimen with larger SDAS exhibited stronger texture than the one with smaller SDAS. The specimen with smaller SDAS showed improved mechanical properties including YS, UTS and ductility. 

Place, publisher, year, edition, pages
Trans Tech Publications, 2019. Vol. 287, p. 18-23
Series
Diffusion and defect data, solid state data. P. B, Solid state phenomena, ISSN 1012-0394, E-ISSN 1662-9779 ; 287
Keywords [en]
Al-Si-Cu alloys, Electron backscattered diffraction, Secondary dendrite arm spacing, Solidification, Aluminum alloys, Copper alloys, Dendrites (metallography), Eutectics, Intermetallics, Manufacture, Mechanical properties, Textures, Electron back-scattered diffraction, Eutectic si, Microstructural features, Properties of Al, Si-Cu alloys, Size and shape, Solidification rate, Silicon alloys
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:hj:diva-43602DOI: 10.4028/www.scientific.net/SSP.287.18Scopus ID: 2-s2.0-85064218056ISBN: 9783035713886 (print)ISBN: 9783035733884 (electronic)OAI: oai:DiVA.org:hj-43602DiVA, id: diva2:1314156
Conference
9th International Conference on Manufacturing Science and Technology, ICMST 2018, Kuala Lumpur, Malaysia, 11 - 13 August 2018
Available from: 2019-05-07 Created: 2019-05-07 Last updated: 2019-05-07Bibliographically approved

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Borkar, HemantSeifeddine, SalemJarfors, Anders E.W.

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