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Title: Simulation of magnetic hysteresis loops and magnetic Barkhausen noise of α-iron containing nonmagnetic particles

Abstract

The magnetic hysteresis loops and Barkhausen noise of a single α-iron with nonmagnetic particles are simulated to investigate into the magnetic hardening due to Cu-rich precipitates in irradiated reactor pressure vessel (RPV) steels. Phase field method basing Landau-Lifshitz-Gilbert (LLG) equation is used for this simulation. The results show that the presence of the nonmagnetic particle could result in magnetic hardening by making the nucleation of reversed domains difficult. The coercive field is found to increase, while the intensity of Barkhausen noise voltage is decreased when the nonmagnetic particle is introduced. Simulations demonstrate the impact of nucleation field of reversed domains on the magnetization reversal behavior and the magnetic properties.

Authors:
; ;  [1];  [1]; ;  [2]
  1. School of Material Science and Engineering, Tsinghua University, Beijing, 100084 (China)
  2. Energy Materials Division, Pacific Northwest National Laboratory, Richland, WA, 99352 (United States)
Publication Date:
OSTI Identifier:
22492271
Resource Type:
Journal Article
Journal Name:
AIP Advances
Additional Journal Information:
Journal Volume: 5; Journal Issue: 7; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 2158-3226
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPUTERIZED SIMULATION; ELECTRIC POTENTIAL; HARDENING; HYSTERESIS; IRON; IRRADIATION; MAGNETIC PROPERTIES; MAGNETIZATION; NOISE; NUCLEATION; PARTICLES; PRECIPITATION; PRESSURE VESSELS; REACTOR MATERIALS; STEELS

Citation Formats

Li, Yi, Li, Qiulin, Liu, Wei, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, Xu, Ben, Hu, Shenyang, and Li, Yulan. Simulation of magnetic hysteresis loops and magnetic Barkhausen noise of α-iron containing nonmagnetic particles. United States: N. p., 2015. Web. doi:10.1063/1.4927548.
Li, Yi, Li, Qiulin, Liu, Wei, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, Xu, Ben, Hu, Shenyang, & Li, Yulan. Simulation of magnetic hysteresis loops and magnetic Barkhausen noise of α-iron containing nonmagnetic particles. United States. https://doi.org/10.1063/1.4927548
Li, Yi, Li, Qiulin, Liu, Wei, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, Xu, Ben, Hu, Shenyang, and Li, Yulan. 2015. "Simulation of magnetic hysteresis loops and magnetic Barkhausen noise of α-iron containing nonmagnetic particles". United States. https://doi.org/10.1063/1.4927548.
@article{osti_22492271,
title = {Simulation of magnetic hysteresis loops and magnetic Barkhausen noise of α-iron containing nonmagnetic particles},
author = {Li, Yi and Li, Qiulin and Liu, Wei and Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055 and Xu, Ben and Hu, Shenyang and Li, Yulan},
abstractNote = {The magnetic hysteresis loops and Barkhausen noise of a single α-iron with nonmagnetic particles are simulated to investigate into the magnetic hardening due to Cu-rich precipitates in irradiated reactor pressure vessel (RPV) steels. Phase field method basing Landau-Lifshitz-Gilbert (LLG) equation is used for this simulation. The results show that the presence of the nonmagnetic particle could result in magnetic hardening by making the nucleation of reversed domains difficult. The coercive field is found to increase, while the intensity of Barkhausen noise voltage is decreased when the nonmagnetic particle is introduced. Simulations demonstrate the impact of nucleation field of reversed domains on the magnetization reversal behavior and the magnetic properties.},
doi = {10.1063/1.4927548},
url = {https://www.osti.gov/biblio/22492271}, journal = {AIP Advances},
issn = {2158-3226},
number = 7,
volume = 5,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2015},
month = {Wed Jul 15 00:00:00 EDT 2015}
}

Works referencing / citing this record:

Fabrication of triple-layered bifurcated vascular scaffold with a certain degree of three-dimensional structure
journal, January 2018