Dendritic microstructure in the metallic glass matrix composite Zr56Ti14Nb5Cu7Ni6Be12

The microstructure and the chemical composition of an in situ formed dendritic body-centered cubic phase in the bulk Zr56Ti14Nb5Cu7Ni6Be12 composite were studied by high-resolution and analytical transmission electron microscopy. The distribution of all elements (Zr, Ti, Nb, Cu, Ni, Be) was experimentally determined in the bulk phases (matrix and dendrites) and in the dendrite/matrix interface, and the results were compared with numerically simulated composition profiles obtained by multi-component phase-field simulations.