Study of the crystallization kinetics of Zr60Al15Ni2 5 bulk glassy alloy | Zendy

Yan Zhi-Jie | Zendy; LI Jinfu | Zendy; Haishui Wang | Zendy; Zhou Yaohe | Zendy

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Study of the crystallization kinetics of Zr60Al15Ni2 5 bulk glassy alloy

Author(s) -

Yan Zhi-Jie,

LI Jinfu,

Haishui Wang,

Zhou Yaohe

Publication year - 2003

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.52.1867

Subject(s) - materials science , alloy , crystallization , kinetics , amorphous metal , thermodynamics , chemical engineering , metallurgy , physics , quantum mechanics , engineering

This paper reports the investigation on the crystallization kinetics of Zr6 0 Al15Ni25 bulk glassy alloy under isothermal annealin g by differential scanning calorimetry. The results show that the incubation time is very smal l even at a low annealing temperature (743 K) and the exothermic peak width, ref lecting the time for the actual crystallization process, increases greatly when annealing temperature decreases. This suggests a growth-controlled crystallizati on process. The Avrami exponents indicate that the crystallization mechanism cha nges at different annealing temperatures. The change of the crystallization mech anism is attributed to the great change of the mobility of atoms at different te mperatures.

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