Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 885, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.160924
Keywords
Soft magnetic powder cores; Ti doping; Low core loss; Corrosion resistance
Categories
Funding
- Youth Innovation Promotion Association CAS [2021294]
- Science and Technology Service Network Initiative of the Chinese Academy of Sciences [KFJ-STS-QYZD-2021-07-0 02]
- S&T Innovation 2025 Major Special Program [2018B10031, 2018B10085, 2019B10090]
- National Natural Science Foundation of China [U1809216]
- K.C. Wong Magna Fund in Ningbo University
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In this study, the effects of Ti content on the soft magnetic properties of Fe-Si-Al soft magnetic powder cores were systematically studied. It was found that the addition of Ti can effectively reduce core loss while improving resistivity and density. SMPCs doped with 0.5 wt% Ti exhibited the best magnetic properties and stable corrosion resistance.
In this study, the effects of Ti content on the soft magnetic properties of Fe85-xSi9.6Al5.4Tix soft magnetic powder cores (SMPCs) were studied systematically. The addition of nonmagnetic Ti gradually decreased the saturation magnetization (M-s) of the Fe85-xSi9.6Al5.4Tix alloys powder, whereas the resistivity and density gradually increased, leading to a significant decrease in core loss (P-cv). The SMPCs doped with 0.5 wt% Ti showed the best magnetic properties, including low P-cv of 140.6 mW/cm(3), stable effective permeability (mu(e)) of 62.9 up to 1 MHz, and high DC bias performance of 46% at 100 Oe. Furthermore, the corrosion resistance of the Fe85-xSi9.6Al5.4Tix SMPCs gradually improved as the Ti content increased, reaching a maximum at a Ti content of 2.5 wt%, at which the corrosion current density decreased to a minimum of 1.45 x 10(-6) A/cm(2). The addition of Ti can effectively improve the corrosion resistance of Fe85Si9.6Al5.4 SMPCs. (C) 2021 Elsevier B.V. All rights reserved.
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