Role of crystalline precipitates on the mechanical properties of (Cu0.50Zr0.50)100−xAlx (x = 4, 5, 7) bulk metallic glasses
Articolo
Data di Pubblicazione:
2011
Abstract:
The mechanical behaviour upon compression of (Cu0.50Zr0.50)100−xAlx (x = 4, 5, 7) rods with 2 and 3mm
diameter was systematically studied and compared with the literature data. Fully amorphous bulk
metallic glasses (x = 5, 7) show little permanent deformation and reproducible yield stress values. The
remarkable fracture strain, observed for some apparently X-ray diffraction amorphous samples (x = 4),
was found to be due to significant amounts (at least 20%) of the B2-CuZr crystalline phase. The effect of
possible flaws on the external surface of the rods was evaluated by mechanical testing of either as cast
and machined samples.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
A. Castellero; T.A. Baser; J. Das; P. Matteis; J. Eckert; L. Battezzati; M. Baricco
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