Effects of Cu and Other Tramp Elements on Steel Properties. Influence of Cu and Sn on Hot Ductility of Steels with Various C Content.

• Matsuoka Hideki

  Materials and Processing Research Center, NKK Corporation

• Osawa Koichi

  Materials and Processing Research Center, NKK Corporation

• Ono Moriaki

  Materials and Processing Research Center, NKK Corporation

• Ohmura Masanori

  Materials and Processing Research Center, NKK Corporation

抄録

The influence of Cu and Sn on the hot ductility at the strain rate of 10^-3 s^-1 for steels with C contents from 0.002 to 0.15 mass% was investigated. The hot ductility dropped at austenite+ferrite two phase region just below A₃, namely, 800 to 900°C. The hot ductility deteriorated more at higher C content, and furthermore with the co-addition of Cu and/or Sn. It was considered that the deterioration at austenite+ferrite two phase region in the Cu, Sn bearing steel was caused by the combined effect of following factors: (1) the formation of proeutectoid ferrite along the austenite grain boundaries, (2) the segregation of Sn at the interface between proeutectoid ferrite and austenite or at the austenite grain boundaries, and (3) the increase in the difference of the deformation strength between austenite and proeutectoid ferrite.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 37 (3), 255-262, 1997

  一般社団法人 日本鉄鋼協会

キーワード

• low carbon steel
• hot ductility
• tramp element
• hot cracking susceptibility
• scrap recycling

詳細情報

• CRID: 1390001206453584128
• NII論文ID: 10002455241
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.37.255
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/37/3/37_3_255/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可