High-strength Al87Ni8La5 bulk alloy produced by spark plasma sintering of gas atomized powders

In situ devitrification and consolidation of gas atomized Al87Ni8La5 glassy powders into highly dense bulk specimens was carried out by spark plasma sintering. Room temperature compression tests of the consolidated bulk material reveal remarkable mechanical properties, namely, high compression stren...

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Bibliographic Details
Published in:Journal of materials research 2009-09, Vol.24 (9), p.2909-2916
Main Authors: Scudino, Sergio, Surreddi, Kumar B., Nguyen, Hoang V., Liu, Gang, Gemming, Thomas, Sakaliyska, Mira, Kim, Ji S., Vierke, Jens, Wollgarten, Markus, Eckert, Jurgen
Format: Article
Language:English
Subjects:
Amorphous
Applied and Technical Physics
Biomaterials
Inorganic Chemistry
Materials Engineering
Materials Science
Nanotechnology
Powder metallurgy
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Summary:In situ devitrification and consolidation of gas atomized Al87Ni8La5 glassy powders into highly dense bulk specimens was carried out by spark plasma sintering. Room temperature compression tests of the consolidated bulk material reveal remarkable mechanical properties, namely, high compression strength of 930 MPa combined with plastic strain exceeding 25%. These findings demonstrate that the combined devitrification and consolidation of glassy precursors by spark plasma sintering is a suitable method for the production of Al-based materials characterized by high strength and considerable plastic deformation.
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2009.0359