Field Assisted Sintering Consolidation of Al-Si-Fe-X Alloy Powder/Flakes Produced through Air Atomization/Melt Spinning

K.Y. Sastry; Ludo Froyen; Jef Vleugels; Omer Van der Biest; R. Schattevoy; K. Hummert

doi:10.4028/www.scientific.net/MSF.519-521.1409

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HomeMaterials Science ForumMaterials Science Forum Vols. 519-521Field Assisted Sintering Consolidation of...

Field Assisted Sintering Consolidation of Al-Si-Fe-X Alloy Powder/Flakes Produced through Air Atomization/Melt Spinning

Abstract:

Melt-spun flakes and air atomised powder of a multi-component Al-Si-Fe-X alloy were consolidated by field assisted (FAST) or spark plasma sintering (SPS) in vacuum using steel dies and punches. Experiments were carried out at 350, 400, 450 and 500°C under applied loads ranging from 81 to 283 MPa. The resulting compacts were microstructurally and mechanically characterized. Ultimate strength values up to 1000 MPa and plastic strains up to 20% were observed during compression tests. The effect of the powder shape on the sintering behaviour is compared. The effect of process parameters such as temperature and applied load on the densification and mechanical properties is discussed. It was found that compacts sintered from melt-spun flakes resulted in a higher strength and ductility than compacts produced from air-atomized powder, sintered under identical conditions.

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Periodical:

Materials Science Forum (Volumes 519-521)

Pages:

1409-1414

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.519-521.1409

Citation:

Cite this paper

Online since:

July 2006

Authors:

K.Y. Sastry, Ludo Froyen, Jef Vleugels, Omer Van der Biest, R. Schattevoy, K. Hummert

Keywords:

Air Atomised Powder, Al-Si-Fe-X, Aluminium Alloy, Field Assisted Sintering, Mechanical Property, Melt Spun Flakes

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