Phase-formation maps of CuZrAlCo metallic glass explored by in situ ultrafast techniques
Source abstract
Abstract
Crystallization of Cu$47.5$Zr$48$Al$_4$Co$0.5$ metallic glass upon isokinetic and isothermal annealing is studied by conventional and ultrafast differential scanning calorimetry, resistive flash-annealing, and in situ high-energy X-ray diffraction. The fast-heating experiments of Cu$47.5$Zr$48$Al$_4$Co$0.5$ metallic glass are complemented by in situ high-energy XRD studies of the undercooled liquid by using electromagnetic levitation. The combination of complementary techniques reveals a competition between the Cu$10$Zr$_7$, B$_2$ CuZr and $τ_4$ Cu$_2$ZrAl phases crystallization depending on heating rate and shows the specific role of Co alloying. A continuous-heating-transformation diagram for a heating rate exceeding six orders of magnitude, $Φ$ = 0.0833 − 90 000 K s$−1$, and a time-temperature-transformation diagram are constructed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Phase-change materials and chalcogenides · Solidification and crystal growth phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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