Texture, microstructure and magnetic properties of Fe-28Cr-15Co-3.5Mo permanent magnet

被引:17
作者
Ahmad, Z. [1 ]
ul Haq, A. [1 ]
机构
[1] Inst Ind Control Syst, Rawalpindi 44000, Punjab, Pakistan
关键词
Texture; Microstructure; Anisotropy; Magnetic property; Fe-Cr-Co-Mo permanent magnet; FE; ALLOYS;
D O I
10.1016/j.jmmm.2008.09.007
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Crystallographic texture, microstructure and magnetic properties of Fe-28Cr-15Co-3.5Mo alloy were studied as a function of processing parameters. Texture studies revealed that thermo-magnetic aging leads to the development of ideal Goss type, {110} < 001 > and cube type {001} < 010 > textures. The orientation densities of these texture components become stronger after the step-aging treatments. Microstructural features show that improvement in magnetic properties were due to aligning and elongation of ferromagnetic Fe, Co-rich (alpha(1)) particles in the preferred < 100 > directions. Magnetic analysis reveals that magnetic properties of the alloys are directionally dependent and influenced by the choice of thermo-magnetic treatment temperature or time. The maximum values of intrinsic coercive force, remanence and energy product, obtained in the textured magnetic alloy were 68.99 kA/m (867 Oe), 1.12 T (11.2 kG) and 43.2 kJm(3) (5.4MGOe), respectively. (C) 2008 Elsevier B. V. All rights reserved.
引用
收藏
页码:325 / 329
页数:5
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