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Tailoring Microstructures and Mechanical Properties of Zr‐Based Bulk Metallic Glass Matrix Composites by the Bridgman Solidification
Author(s) -
Qiao J.W.,
Zhang Y.,
Liaw P. K.
Publication year - 2008
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800149
Subject(s) - materials science , microstructure , composite material , volume fraction , dendrite (mathematics) , matrix (chemical analysis) , metal , amorphous metal , metallurgy , geometry , mathematics , alloy
Plastic Zr‐based bulk metallic glass matrix composites containing uniformly distributed flowery dendrite are synthesized by Bridgman solidification. By varying the withdrawal velocities, tailorable volume fraction of dendrites with characteristic spanning length, as well as tunable mechanical properties are achieved. The characteristic spanning length of microstructure roughly obeys linear relationship with withdrawal velocities by investigation in detail. Ultimate strength of 1,930 MPa and fracture strain of 11.3 % available under loading correspond to the optimized withdrawal velocity of 1.0 mm/s.