硝酸処理によるベルト研磨ステンレス鋼の耐食性改善

• 木谷 滋

  住友金属工業 (株) 直江津製造所

書誌事項

タイトル別名

• Improvement of the Corrosion Resistance of the Belt-ground Stainless Steels by Nitric Acid Treatment.
• ショウサン ショリ ニヨル ベルト ケンマ ステンレス コウ ノ タイショクセ

抄録

The effects of immersion or electrolysis in nitric acid solutions on the corrosion resistance of stainless steels ground using an abrasive belt and polishing oil were studied by immersing plate specimens of SUS 430, SUS 430LX, and SUS 304 belt-ground using a sulfurized mineral oil in 5∼30mass % HNO₃ for 60min or by electrolyzing them in 10mass % HNO₃ for 8-16s at 50 or 60°C. Corrosion resistance of samples was evaluated by a modified ferroxyl test and salt spraying followed by drying and wetting (SDW) rusting tests. We found that immersion in 10-20mass % HNO₃ was more effective than that in 30mass % HNO₃ and that cathodic or alternating electrolysis was more effective than anodic electrolysis in improving corrosion resistance of samples. XPS showed that effective immersion and effective electrolysis in nitric acid solution decreased sulfur content in the surface film. Corrosion resistance is presumed improved by repassivation after dissolution of the original surface film containing sulfur in nitric acid solution.

収録刊行物

• 表面技術

  表面技術 49 (8), 881-886, 1998

  一般社団法人 表面技術協会

キーワード

• Stainless Steel
• Corrosion Resistance
• Sulfurized Mineral Oil
• Belt-grinding
• Nitric Acid

詳細情報

• CRID: 1390001204115222016
• NII論文ID: 10002110291
• NII書誌ID: AN1005202X
• DOI: 10.4139/sfj.49.881
• ISSN: 18843409
• ISSN: 09151869
• NDL書誌ID: 4546112
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4546112
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可