In:
International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 111, No. 10 ( 2020-10-01), p. 849-856
Abstract:
The non-isothermal crystallization kinetics with heating rates ranging from 10 K s -1 to 80 K s -1 and the isothermal crystallization kinetics during annealing from the glass transition temperature to the crystallization onset temperature of a Zr 57 Cu 15.4 Ni 12.6 Al 10 Nb 5 amorphous alloy were studied in detail using X-ray diffraction and differential scanning calorimetry. During non-isothermal crystallization, it is more difficult to nucleate than to grow, and the crystallization resistance increases first and then decreases. During isothermal crystallization of the alloy from 713- 728 K, there are two exothermic peaks corresponding to a diffusion-controlled growth process with decreasing nucleation rate and increasing nucleation rate. From 733- 748 K, only one exothermic peak appears, and the growth process is controlled by the interface with decreasing nucleation rate. Isothermal crystallization is a process in which the crystallization resistance increases. The resistance of isothermal crystallization is less than that of non-isothermal crystallization.
Type of Medium:
Online Resource
ISSN:
2195-8556
,
1862-5282
DOI:
10.1515/ijmr-2020-1111009
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2020
detail.hit.zdb_id:
2232675-3
detail.hit.zdb_id:
2128058-7
detail.hit.zdb_id:
203021-4
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