Bulk metallic glass matrix composites (BMGMC) are unique
materials of future having excellent
mechanical properties (such as high hardness, strength
and profound elastic strain limit). However,
they exhibit poor ductility and suffer from
catastrophic failure on the application of force. The reasons
behind this are still not very well understood. In this
study, an effort has been made to overcome this
pitfall by solidification processing. Zr based BMGMCs
are produced in the form of “as cast” wedges
using vacuum arc melting and suction casting button
furnace. The idea is to study the effect of cooling
rate and inoculation on formability during
solidification. Adjustment, manipulation and proper control of
processing parameters are observed to reflect upon the
quality of ingots such as improved castability,
proper mold filling and defect free casting as
characterized by NDT. Bulk metallic glass matrix
composites (BMGMC) are very sluggish and difficult to
cast alloys. Vacuum melting and suction
casting is effective way to fabricate these alloys.
However, extremely careful control and monitoring of
process variables is needed to form these alloys in
good shape. Further, thermal analysis, optical
microscopy and hardness measurement confirmed the
formation and evolution of in-situ
composite structure. This is first footprint of pathway towards
sustainable manufacturing of these
alloys in future.
Author
(s) Details
Muhammad Musaddique
Ali Rafique
Eastern Engineering Solutions LLC, Detroit, MI, USA.
View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/263
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