Crystallization of Phase-Separated Pd41.25Ni41.25P17.5 BMGs
Autor: | Si Lan, H.W. Kui, Zhenduo Wu |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Metallurgical and Materials Transactions A. 45:2399-2404 |
ISSN: | 1543-1940 1073-5623 |
DOI: | 10.1007/s11661-013-1939-9 |
Popis: | Phase-separated Pd41.25Ni41.25P17.5 bulk metallic glasses (BMGs) were subjected to isothermal annealing at 613 K (340 °C) for different time periods, t, in the range of 0 ≤ t ≤ 8 hours. For 0 ≤ t ≲ 5 hours, crystalline precipitates, in the shape of spheres, appear and its density is more or less a linear function of t. They are randomly distributed in the amorphous matrix. For t ≳ 5 to 6 hours, the number density of the spherical crystalline precipitates increases rapidly. In addition, they are no longer distributed randomly in the phase-separated amorphous matrix. Clustering is displayed. Experimental results suggest that the clustering is due to cubic crystalline precipitates that start to appear when t ≈ 5 to 6 hours. |
Databáze: | OpenAIRE |
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