Thermal aging effects on magnetisation reversals in a pre-deformed Fe-1wt%Cu alloy studied via first-order reversal curves

被引：2

作者：

Kobayashi, Satoru ^{[1
]}

Kawagoe, Riko ^{[1
]}

Murakami, Hiroaki ^{[1
]}

Ohishi, Kazuki ^{[2
]}

Kawamura, Yukihiko ^{[2
]}

Suzuki, Jun-ichi ^{[2
]}

机构：

[1] Iwate Univ, Fac Sci & Engn, Ueda 4-3-5, Morioka, Iwate 0208551, Japan

[2] CROSS, Neutron Sci & Technol Ctr, Tokai, Ibaraki, Japan

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2019年 / 99卷 / 06期

关键词：

Magnetic hysteresis; Fe-Cu alloy; thermal aging; neutron scattering; precipitate; ANGLE NEUTRON-SCATTERING; PARTICLE-SYSTEMS; HYSTERESIS; IRON; SINGLE; COPPER;

D O I：

10.1080/09500839.2019.1660011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the results of measurements of first-order reversal curves (FORCs) for a thermally aged Fe-1wt%Cu alloy with different levels of rolling reduction. We find that the FORC distribution has a peak at high switching and interaction fields for samples with high rolling reductions and that this peak rapidly shifts towards lower fields after aging, which is associated with a narrowing of the peak. Conversely, after aging for more than 10,000 min, the peak exhibits an additional shift towards higher fields, which is associated with a broadening of the peak. These results indicate that both the microstructural homogeneity and the material hardening changes during thermal aging in a competitive way due to recovery and Cu precipitation, which is consistent with small-angle and wide-angle neutron scattering data.

引用

页码：217 / 225

页数：9