オーステナイト系ステンレス鋼中の加工誘起マルテンサイトの組織形態と磁気特性の相関

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タイトル別名
  • Relationship between Morphology of Strain-Induced Martensite Phase and Magnetic Properties in Austenitic Stainless Steels
  • オーステナイトケイ ステンレスコウ チュウ ノ カコウ ユウキ マルテンサイト ノ ソシキ ケイタイ ト ジキ トクセイ ノ ソウカン

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抄録

  We have performed high-sensitivity magnetic measurements for tensile-deformed SUS304-type austenitic stainless steel to elucidate a relationship between morphology of martensite particles and structure-sensitive magnetic hysteresis properties. A monotonic increase of the volume fraction of martensite phase up to 14.3% through strain-induced martensitic transformation was observed, while coercivity exhibits a maximum at around 4.3% fraction. Measurements of coercivity varying the magnetic-field direction against tensile direction revealed anisotropy in angular dependence of coercivity that becomes weaker with the progress of plastic deformation. These observations were explained as due to a change of the size and anisotropy in shape of martensite phase with deformation.<br>

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 78 (10), 375-380, 2014

    公益社団法人 日本金属学会

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