オーステナイト系ステンレス鋼の粒界腐食感受性におよぼすレーザ熱処理の影響 Effect of Laser Heat Treatment on Intergranular Corrosion of Austenitic Stainless Steel

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Laser heat treatment was applied for desensitization in surface layer of sensitized Type304 stainless steel. Effect of laser heating condition on desensitization was investigated and heat flow by laser heating was calculated by computer simulation. Desensitization by laser heating depends on the maximum temperature of specimen surface in different power densities or beam diameters. The chromium distribution in the vicinity of grain boundary was calculated from the thermal cycles obtained by computer simulation, and the disappearance of chromium depleted zone coincided with desensitization data by laser heating. From these results, it has become clear that chromium depleted zone disappears in short time by laser heating at 1323K and above and laser heat treatment is effective for desensitization of sensitized stainless steel.

収録刊行物

  • 材料と環境 : zairyo-to-kankyo  

    材料と環境 : zairyo-to-kankyo 44(3), 159-165, 1995-03-15 

    Japan Society of Corrosion Engineering

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各種コード

  • NII論文ID(NAID)
    10002173160
  • NII書誌ID(NCID)
    AN10235427
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09170480
  • NDL 記事登録ID
    3601921
  • NDL 刊行物分類
    PD65;PD26
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-266
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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