Designing ductile Zr-based bulk metallic glasses with phase separated microstructure

Xinghao Du, Jacob C. Huang, Ker Chang Hsieh, Jason S.C. Jang, Peter K. Liaw, Hai Ming Chen, Hung Sheng Chou, Yan Huei Lai

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The thermodynamic computation, the phase-separated Zr based bulk metallic glasses, Zr 66Ni 19.3Cu 9.7Al 5 and Zr 61.9Ni 16.7Cu 11.4Al 10, with a dramatically enhanced plasticity up to 20% are developed. The study has also described the computational thermodynamic approach to identify the potential compositions of alloys exhibiting the two liquid miscibility phase equilibrium in the liquid temperature region has been described in the papers. The glassy nature of the 2mm diameter ingots for the designed alloys was first ascertained by X-ray diffraction (XRD), where the EDS measurements at different locations featured slight different readings of the compositions. The experiment presented promising results by demonstrating the possibility of designing other ductile bulk metallic glasses with high strength and plasticity using the thermodynamic calculations.

Original languageEnglish
Pages (from-to)387-391
Number of pages5
JournalAdvanced Engineering Materials
Volume11
Issue number5
DOIs
StatePublished - May 2009

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