190. modulating crystallinity of a ti-zr-based bulk metallic glass matrix composite

Department: NanoEngineering
Faculty Advisor(s): Kenneth S. Vecchio

Primary Student
Name: Kevin Richard Kaufmann
Email: krkaufma@ucsd.edu
Phone: 559-347-4411
Grad Year: 2020

Abstract
Research efforts into bulk metallic glasses have emphasized improving their mechanical properties via a variety of methods, one of which is the introduction of a ductile crystalline phase. This presentation will focus on controlling the volume fraction of the crystalline phase of in a bulk metallic glass matrix composite based on the system: Ti-Zr-Nb-Cu-Be-Sn, via composition and cooling rate control. Bulk samples were fabricated via arc melting and subsequent suction casting. The resultant microstructures were investigated via optical microscopy and electron backscatter diffraction (EBSD). This work serves to advance the understanding of bulk metallic glass matrix composites, particularly chemistry sensitivity, leading to optimized mechanical performance, and improved intrinsic toughness.

Industry Application Area(s)
Aerospace, Defense, Security | Materials

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