TY - JOUR
T1 - Highly inhomogeneous compressive plasticity in nanocrystal-toughened Zr-Cu-Ni-Al bulk metallic glass
AU - Méar, F. O.
AU - Wada, T.
AU - Louzguine-Luzgin, D. V.
AU - Inoue, A.
N1 - Funding Information:
The work was supported by Grant-In-Aid Priority Area on Science and Technology of Microwave-Induced, thermally Non-Equilibrium Reaction 18070001 from the Ministry of Education, Sports, Culture, Science and Technology, Japan as well as the Research and Development Project on Advanced Metallic Glasses, Inorganic Materials, and Joining Technology.
PY - 2009/4
Y1 - 2009/4
N2 - A Zr62Cu15.5Al10Ni12.5 bulk metallic glass with a large supercooled liquid region of 90 K, produced by copper-mould casting, exhibits a high strength of 1730 MPa and superior but highly inhomogeneous plasticity under uniaxial compression at ambient temperature. Micro-X-ray diffraction shows that compressive loading facilitates crystallization in the monolithic glassy alloy, resulting in room-temperature plasticity. The plastic deformation of the Zr62Cu 15.5Al10Ni12.5 BMG may be attributed to in situ precipitation of nanocrystals during compression in heavily deformed areas.
AB - A Zr62Cu15.5Al10Ni12.5 bulk metallic glass with a large supercooled liquid region of 90 K, produced by copper-mould casting, exhibits a high strength of 1730 MPa and superior but highly inhomogeneous plasticity under uniaxial compression at ambient temperature. Micro-X-ray diffraction shows that compressive loading facilitates crystallization in the monolithic glassy alloy, resulting in room-temperature plasticity. The plastic deformation of the Zr62Cu 15.5Al10Ni12.5 BMG may be attributed to in situ precipitation of nanocrystals during compression in heavily deformed areas.
KW - Amorphous alloys
KW - Mechanical properties
KW - Mechanical testing
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U2 - 10.1080/09500830902817861
DO - 10.1080/09500830902817861
M3 - Article
AN - SCOPUS:67651244327
VL - 89
SP - 276
EP - 281
JO - Philosophical Magazine Letters
JF - Philosophical Magazine Letters
SN - 0950-0839
IS - 4
ER -