高強度冷延鋼板の化成処理性におよぼす表面酸化物の影響(表面処理・腐食) Effects of Surface Oxides on the Phosphatability of the High Strength Cold Rolled Steels(Surface Treatment and Corrosion)

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It is well known that Si and Mn, the basic alloying elements for steel materials, are susceptible to oxidation and form oxides on the steel surface easily, which has a great influence upon the surface performance of steel sheets such as phosphatability. In recent years, on the other hand, the cold rolled steel sheets for automobiles are required to have increasingly higher strength in order to combine improved crashworthiness and weight saving of automobiles. To increase the strength of steel sheets, the addition of these alloying elements is very effective. In this work, the kinds and the state of distribution of oxides formed on the surface of steel sheets alloyed with Si and Mn were analyzed to investigate the effects of Si and Mn upon phosphatability from the standpoint of surface oxides. It was found that phosphatability is deteriorated by the addition of Si because Si oxide films are formed on the surface of steel sheets and serve as the barriers against the reactions in phosphating treatment. It was also found that the formation of oxides is also affected by the concentration of Mn except Si and that the steel sheets excellent in phosphatability can be produced by controlling the concentration of Mn even when the concentration of Si is comparatively high.

収録刊行物

  • 鐵と鋼 : 日本鐡鋼協會々誌   [巻号一覧]

    鐵と鋼 : 日本鐡鋼協會々誌 92(6), 378-384, 2006-06-01  [この号の目次]

    社団法人日本鉄鋼協会

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各種コード

  • NII論文ID(NAID)
    10018056250
  • NII書誌ID(NCID)
    AN00151251
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00211575
  • NDL 記事登録ID
    7973820
  • NDL 雑誌分類
    ZP42(科学技術--金属工学・鉱山工学--鉄鋼)
  • NDL 請求記号
    Z17-356
  • データ提供元
    CJP書誌  CJP引用  NDL  NII-ELS 
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