Magnetic measurement to evaluate material properties of ferromagnetic structural steels with planar coils

被引：16

作者：

Ebine, N ^{[1
]}

Ara, K ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Tokai, Ibaraki 31911, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期

关键词：

ferromagnetic structural steel; material degradation; permeability; planar coil;

D O I：

10.1109/20.800711

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Nondestructive measurement experiments were carried out with a planar coil to evaluate changes of material properties of ferromagnetic structural steels. Examined steers were of A533B that is a low-alloy steel and of SUS410 that is a martensitic stainless steel The planer coil has two windings; one is of primary for excitation and the other secondary for induction of output voltage, The coil was placed on a test plate with a magnetic yoke for application of a bias de magnetic field, and excited with a constant current of 25 Hz. Then the output voltages were measured while slowly changing the bias field by excitation of the magnetic yoke with a triangular-wave form current of 0.005 Hz. Changes of output voltages with different test plates were correlated with their mechanical and magnetic properties. The correlation is so good that this measuring method could be applied to nondestructive evaluation of material degradation in ferromagnetic structural steels.

引用

页码：3928 / 3930

页数：3

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