Secondary crystallization in (Fe65Co35)79.5+xB13Nb4-xSi2Cu1.5 and (Fe65Co35)83B10Nb4Si2Cu1 nanocomposite alloys

被引：6

作者：

Kernion, Samuel J. ^{[1
]}

Keylin, Vladimir ^{[2
]}

Huth, Joe ^{[2
]}

McHenry, Michael E. ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Mat Sci & Engn Dept, Pittsburgh, PA 15213 USA

[2] Magnet Technol Ctr, Pittsburgh, PA 15238 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 07期

关键词：

KINETICS; FINEMET;

D O I：

10.1063/1.3677830

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Here, secondary crystallization kinetics of high induction, low loss HTX002-type nanocomposite alloys with the compositions (Fe65Co35)(79.5+x)B13Nb4-xSi2Cu1.5 (x = 0-4) and (Fe65Co35)(83)B10Nb4Si2Cu1 are reported. The magnetization of the alloys was measured through the thermal cycle of 50 degrees C-700 degrees C-300 degrees C-800 degrees C-300 degrees C-900 degrees C-200 degrees C by vibrating sample magnetometry. In (Fe65Co35)(79.5+x)B13Nb4-xSi2Cu1.5 alloys, the stability of the (Fe,Co,Nb)(23)B-6 (23-6) phase is increased with increasing Nb content. In the x = 4 alloy, (Fe,Nb)(2)B is the only secondary crystalline phase to form, demonstrating that Nb is necessary for the 23-6 phase to form. The (Fe65Co35)(83)B10Nb4Si2Cu1 alloy forms the 23-6 phase more readily than the x = 0 alloy, likely due to the lower B content. The kinetics of secondary crystallization are important to assess long-term ageing effects on the metastable microstructure at elevated temperatures. (C) 2012 American Institute of Physics. [doi:10.1063/1.3677830]

引用

页数：3

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