New Fe−Co−Ni−Cu−Al−Ti Alloy for Single-Crystal Permanent Magnets

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• 作者：I. V. Belyaev ; V. E. Bazhenov ; A. V. Moiseev…
• 关键词：permanent magnets ; Thermo ; Calc ; magnetic phase ; magnetic properties ; GRF ; growth restriction factor
• 刊名：The Physics of Metals and Metallography
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：117
• 期：3
• 页码：214-221
• 全文大小：1,380 KB
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• 作者单位：I. V. Belyaev (1)
  V. E. Bazhenov (2)
  A. V. Moiseev (1)
  A. V. Kireev (1)
  
  1. Stoletovs’ Vladimir State University, ul. Gor’kogo 87, Vladimir, 600000, Russia
  2. National University of Science and Technology MISIS, Leninskii pr. 4, 119049, Moscow, Russia
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Metallic Materials
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1555-6190

文摘

A new alloy intended for single-crystal permanent magnets has been suggested. The new alloy has been designed based on the well-known Fe−Co−Ni−Cu−Al−Ti system and contains to 1 wt % Hf. The alloy demonstrates an enhanced potential ability for single-crystal forming in the course of unidirectional solidification of ingot. Single-crystal permanent magnets manufactured from this alloy are characterized by a high level of magnetic properties. When designing the new alloy, computer simulation of the phase composition and calculations of solidification parameters of complex metallic systems have been performed using the Thermo-Calc software and calculation and experimental procedures based on quantitative metallographic analysis of quenched structures. After the corresponding heat treatment, the content of high-magnetic phase in the alloy is 10% higher than that in available analogous alloys.