加工後時効熱処理を施した原子炉用低炭素ステンレス鋼の時効析出と残留応力の変化 Changes in Residual Stress in Low Carbon Stainless Steel for Nuclear Reactor Usage Suffered from Deformation and Aging

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著者

    • 大西 陽子 OHNISHI Yoko
    • 兵庫県立大学大学院工学研究科物質系工学専攻 Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo
    • 藤尾 和樹 FUJIO Kazuki
    • 兵庫県立大学大学院工学研究科物質系工学専攻 Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo
    • 角谷 英剛 [他] KAKUTANI Eigo
    • 兵庫県立大学大学院工学研究科物質系工学専攻 Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo
    • 山本 厚之 YAMAMOTO Atsushi
    • 兵庫県立大学大学院工学研究科物質系工学専攻 Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo
    • 椿野 晴繁 TSUBAKINO Harushige
    • 兵庫県立大学大学院工学研究科物質系工学専攻 Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo
    • 寺澤 倫孝 TERASAWA Mititaka
    • 兵庫県立大学大学院工学研究科物質系工学専攻 Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo

抄録

  Changes in residual stress and precipitation phenomena were studied, during aging for an austenitic stainless steel, SUS316L, cold-rolled with various degrees of reduction and surface ground by transmission electron microscopy and synchrotron radiation (SR) diffractmetry. After aging at 573 K, two kinds of precipitates were observed in the cold-rolled specimens. They were identified as M<sub>7</sub>C<sub>3</sub> and M<sub>23</sub>C<sub>6</sub> by SR diffraction and electron diffraction measurements. The precipitate M<sub>7</sub>C<sub>3</sub> was formed both in grain interiors and at grain boundaries, while the precipitate M<sub>23</sub>C<sub>6</sub> was formed in grain interiors. Precipitation was promoted with increasing cold-rolling reduction. Additionally, segregation of phosphorous was expected along grain boundaries. Residual stresses measured at a synchrotron radiation facility, SPring-8, showed that the compressive stress detected in cold-rolled specimens was changed into tensile stress with proceeding of aging. On the other hand, the tensile stress induced by surface grinding was decreased.<br>

収録刊行物

  • 日本金屬學會誌 = Journal of the Japan Institute of Metals  

    日本金屬學會誌 = Journal of the Japan Institute of Metals 72(5), 360-365, 2008-05-01 

    The Japan Institute of Metals

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各種コード

  • NII論文ID(NAID)
    10021150339
  • NII書誌ID(NCID)
    AN00062446
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00214876
  • NDL 記事登録ID
    9514380
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-314
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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