期刊
INTERMETALLICS
卷 19, 期 12, 页码 1780-1785出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2011.07.027
关键词
magnetic intermetallics; mechanical properties at ambient temperature; microstructure; diffraction
资金
- Ministry of Science and Environmental Protection of Serbia [172015]
- Grant Agency of the Czech Republic [102/01/1335/B, 202/01/0668]
- Czech Ministry of education, youth and sports [1M0512]
Correlation between hardness of amorphous Fe75Ni2Si8B13C2 alloy and thermally induced structural transformations has been investigated by measuring microhardness in a series of samples heated at different temperatures from 25 to 1000 degrees C. The alloy has a relatively high hardness in the amorphous state, due to its chemical composition involving silicon, boron and carbon. As the alloy begins to crystallize, microhardness increased and reached a plateau in 500-650 degrees C temperature region, due to formation composite structure involving the small nanocrystals of alpha-Fe(Si) and Fe2B phases dispersed in the amorphous matrix. After treatment at higher temperatures, the nanocomposite structure is replaced by a more granulated structure, leading to decline in microhardness. (C) 2011 Elsevier Ltd. All rights reserved.
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