High-strength Al(87)Ni(8)La(5) bulk alloy produced by spark plasma sintering of gas atomized powders

In situ devitrification and consolidation of gas atomized Al(87)Ni(8)La(5) 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...

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Published inJournal of materials research Vol. 24; no. 9; pp. 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 Journal Article
LanguageEnglish
Published 01.09.2009
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Summary:In situ devitrification and consolidation of gas atomized Al(87)Ni(8)La(5) 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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0884-2914
DOI:10.1557/JMR.2009.0359