Development of Barkhausen noise measurement system with rotating magnetization probe for stress evaluation

2014 Fiscal Year Final Research Report

• Project/Area Number: 24760593
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Material processing/treatments
• Research Institution: Yokohama National University
• Principal Investigator: KASAI NAOYA 横浜国立大学, 環境情報研究科(研究院), 准教授 (20361868)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 非破壊応力評価 / バルクハウゼンノイズ

Outline of Final Research Achievements

We successfully developed Barkhausen noise (BHN) measurement system with three magnetic pole. It generated the uniform rotating magnetic field. To discuss about magnetic domain wall movement in stress, in-situ observation system for magnetic domain wall movement was also developed. Moreover, parameters, such as mmagnetostriction and texture of the test piece were also measured. From obtained results, stress behavior of BHN for quantitative evaluation was discussed.

Free Research Field

材料安全工学