东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (2): 213-217.DOI: 10.12068/j.issn.1005-3026.2015.02.013

• 材料与冶金 • 上一篇    下一篇

块状铁基α″-Fe16N2磁性材料的制备

宫梦莹1, 杜计军2, 佟伟平1   

  1. (1.东北大学 材料电磁过程研究教育部重点实验室, 辽宁 沈阳110819; 2.太钢股份有限公司 不锈冷轧厂, 山西 太原030003)
  • 收稿日期:2013-12-31 修回日期:2013-12-31 出版日期:2015-02-15 发布日期:2014-11-07
  • 通讯作者: 宫梦莹
  • 作者简介:宫梦莹(1988-),女,辽宁鞍山人,东北大学博士研究生; 佟伟平(1966-)男,辽宁沈阳人,东北大学教授,博士生导师.
  • 基金资助:
    沈阳市工业科技攻关专项(121401); 国家自然科学基金资助项目(51275344); 中央高校基本科研业务费重大科技创新项目(N110809001); 2010年辽宁省“百千万人才工程”项目(2010921055).

Preparation of Bulk Iron-based α″-Fe16N2 Magnetic Materials

GONG Meng-ying1, DU Ji-jun2, TONG Wei-ping1   

  1. 1. Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China; 2. Stainless Steel Cold Rolling Mill, Shanxi Taigang Stainless Steel Co., Ltd., Taiyuan 030003, China.
  • Received:2013-12-31 Revised:2013-12-31 Online:2015-02-15 Published:2014-11-07
  • Contact: TONG Wei-ping
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摘要: 采用气固反应法制备出α″-Fe16N2相含量较高的块状铁基磁性材料,对材料的结构和磁性能进行了研究.采用X射线衍射、横截面显微组织观察及振动磁强计作为主要检测手段,检测不同处理方法所获得的样品中α″-Fe16N2相的含量、相变情况及磁性能.测试结果表明,气固反应渗氮及退火、淬火、回火这一过程中会获得α″-Fe16N2相较高的铁基磁性材料.当回火温度为150℃、时间为4.5h时,试样中α″-Fe16N2相的质量分数最大,达到50.57%,其饱和磁极化强度高达223.6A

关键词: α″-Fe16N2相, 磁性材料, 铁基, 回火处理, 磁性能

Abstract: Bulk iron-based magnetic materials containing high content of α″-Fe16N2 phase were prepared by gas-solid reaction. The content of α″-Fe16N2 phases, phase transformation and magnetic properties in each sample with different annealing parameters were measured by XRD, optical microscope and vibration magnetometer. The result shows that the samples, prepared by gas-solid reaction nitriding, homogenizing, quenching and tempering, contain high content of α″-Fe16N2 phase. When the tempering temperature is 150℃ and the time is 4.5h, the content of α″-Fe16N2 phase is highest, reaching 50.57 wt %. The saturated magnetic pole strength is 223.6A

Key words: α″-Fe16N2, magnetic materials, iron-based, tempering, magnetic property

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