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Synthesis of nanocrystalline aluminum matrix composites reinforced with in situ devitrified Al–Ni–La amorphous particles

2005; Elsevier BV; Volume: 54; Issue: 5 Linguagem: Inglês

10.1016/j.scriptamat.2005.11.003

1872-8456

Zhihui Zhang, Bing Han, David B. Witkin, L. Ajdelsztajn, Enrique J. Laverna,

Microstructure and mechanical properties

Nanocrystalline aluminum matrix composites were synthesized via hot extrusion of cryomilled 5083 Al (Al–4.59Mg–0.57Mn–0.25Fe in wt.%) blended with amorphous Al85Ni10La5 powder. The compression yield strength of the as-extruded composite is 813 and 906 MPa for 10 and 20 vol.% Al85Ni10La5, respectively. The observed thermal stability is discussed in light of the mechanical behavior.