期刊
METALS
卷 8, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/met8040283
关键词
metalloid elements; nanocrystallization behavior; soft magnetic properties; Fe-based metallic glasses
资金
- National Natural Science Foundation of China [51671018, 51531001, 51422101, 51371003, 51271212, 51671021]
- 111 Project [B07003]
- International S&T Cooperation Program of China [2015DFG52600]
- Program for Changjiang Scholars and Innovative Research Team in University of China [IRT_14R05]
- Projects of SKL-AMM-USTB [2016Z-04, 2016-09, 2016Z-16]
- Beijing Natural Science Foundation [2142022]
- Program for Excellent Talents in Beijing Municipality [2013D009006000004]
Soft magnetic properties of Fe-based metallic glasses (MGs) are dependent on their nanocrystallization behavior, particularly the precipitation of alpha-Fe embedded in the amorphous matrix. In this study, the effects of metalloid elements of C, B, Si, and P on thermal stability, nanocrystallization behavior, and soft magnetic properties of typical Fe-based amorphous alloys, i.e., the Fe-Cu-(CBSiP) glassy alloys, were investigated systematically. It is found that the addition of the metalloid elements can effectively retard the precipitation process of alpha-Fe during reheating of the Fe-based MGs due to the long-range diffusion of the metalloids; however, their individual effects on the compositional portioning and formation of other crystalline phases are varied. To achieve desirable soft magnetic properties, a species of metalloids and their concentrations have to be carefully controlled so that the formation of alpha-Fe does not interfere with that of other crystalline phases, especially those hard-magnetic phases.
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