Development of Nano-Fibrous Eutectic and Primary Silicon Phases in Al-Si Cast Alloys for High Strength Structural Applications

Among the high strength lightweight materials, hypereutectic Al-Si cast alloys with constituent phases that possess nano-scale dimensions are highly desirable for automotive and aerospace applications. Recently, we have achieved ultra-high strength Al-Si alloys via directional solidification technol...

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Bibliographic Details
Published inInternational journal of metalcasting Vol. 6; no. 3; pp. 27 - 34
Main Authors Shamsuzzoha, M., Nastac, L., Berry, J.
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 2012
Subjects
Alloys
Aluminum base alloys
Characterization and Evaluation of Materials
Chemistry and Materials Science
Intermetallic compounds
Materials Science
Metallic Materials
Nanocomposites
Nanomaterials
Nanostructure
Near net shaping
Phases
Structural Materials
Weight reduction
hypereutectic Al-Si alloys
nano-size refinement
casting
modification
solidification
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Summary:Among the high strength lightweight materials, hypereutectic Al-Si cast alloys with constituent phases that possess nano-scale dimensions are highly desirable for automotive and aerospace applications. Recently, we have achieved ultra-high strength Al-Si alloys via directional solidification technology. In these directionally solidified alloys, both the eutectic and primary silicon phases have nano-sized fibrous morphologies. This paper describes the microstructure evolution and manufacturing of these advanced alloys and introduces ways of implementing these findings of directionally solidified casting into near-net shaped castings.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1939-5981
2163-3193
DOI:10.1007/BF03355531