ローリング方向が低合金鋼MC500のバルクハウゼンノイズに与える影響
Radoslav Koňár1, Branislav Vavák2, Mária Čilliková1
1Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovakia.
Materials (Basel, Switzerland)
|February 13, 2026
まとめ
この研究では,鋼鉄のバルクハウゼン騒音は,余剰ストレスではなく,牽引試験中の応力によって主に影響されていることが示されています. ローリングの方向は,磁気アニソトロピーの変化に最小限の影響を及ぼします.
科学分野:
- マテリアルサイエンス 材料科学
- 固体物理 固体物理学
- マグネチズム (磁気) とは
背景:
- バークハウゼンの騒音分析は,磁気領域の振る舞いを明らかにします.
- 材料の特性には,微細構造とストレス状態が影響する.
- 低合金鋼MC 500は,磁気アニソトロピーを研究するために使用されます.
研究 の 目的:
- MC 500鋼のバルクハウゼンノイズに対するローリング方向の影響を調査する.
- 単軸張力下での磁性アニソトロピーの変化を分析する.
- バルクハウゼンの騒音放出に対する弾性およびプラスチックのストレスの影響を判定する.
主な方法:
- 試料は,回転方向と横方向に沿って切られました.
- バークハウゼン騒音は,引力試験 (最大21.5%のプラスチックストレイン) の間,in situおよびex situで測定されました.
- 分析は,ドメイン壁の並べ替えと変位密度に焦点を当てた.
主要な成果:
- In situ Barkhausen 騒音は,縦 (500 mV) よりも,引力負荷方向 (1100 mV) 沿いに高かった.
- エックス・シトゥー測定では,特に15%のプラスチックのストレスの後,逆の結果が示されました.
- ローリング方向はわずかな影響を及ぼし,脱位密度 (35 × 10^15 m−2) は,屈折後の主要な要因でした.
結論:
- 適用されたストレスは,引力試験中のBarkhausenノイズに大きく影響します.
- 残留ストレスは,in situストレスと比較して,あまり顕著な影響を及ぼさない.
- 脱位密度は,降伏後のバルクハウゼンノイズに影響を与える重要な微細構造的要因です.
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