In-situ study of crystallization kinetics in ternary bulk metallic glass alloys with different glass forming abilities

Si Lan, Xiaoya Wei, Jie Zhou, Zhaoping Lu, Xuelian Wu, Mikhail Feygenson, Jörg Neuefeind, Xun Li Wang

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Abstract

In-situ transmission electron microcopy and time-resolved neutron diffraction were used to study crystallization kinetics of two ternary bulk metallic glasses during isothermal annealing in the supercooled liquid region. It is found that the crystallization of Zr56Cu36Al8, an average glass former, follows continuous nucleation and growth, while that of Zr46Cu46Al8, a better glass former, is characterized by site-saturated nucleation, followed by slow growth. Possible mechanisms for the observed differences and the relationship to the glass forming ability are discussed.

Original languageEnglish
Article number201906
JournalApplied Physics Letters
Volume105
Issue number20
DOIs
StatePublished - Nov 17 2014

Funding

FundersFunder number
National Natural Science Foundation of China51271212, 51001009, 51010001
U.S. Department of Energy

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