極低炭素冷延鋼板の材質特性におよぼすNb, Ti複合添加の効果

• 徳永 良邦

  新日本製鉄(株)名古屋製鉄所

• 山田 正人

  新日本製鉄(株)人事部

• 伊藤 亀太郎

  新日本製鉄(株)厚板・条鋼センター

書誌事項

タイトル別名

• Effect of Combined Addition of Nb and Ti on the Mechanical Properties of Extra Low Carbon Steel Sheets
• キョク テイ タンソ レイエン コウハン ノ ザイシツ トクセイ ニ オヨボス

抄録

Effect of combined addition of Nb and Ti on the mechanical properties of interstitial free (IF) steel sheets was studied comparing with Nb-bearing IF steel (Nb-IF) and Ti-bearing IF steel (Ti-IF).<BR>With the addition of Ti equivalent to nitrogen content together with Nb, mechanical properties are very much improved compared to Nb-IF, especially when steels are coiled at normal temperature or at the coilend when coiled at high temperature. This is attributed to the formation of large cubic TiN precipitates. On the other hand, fine AIN precipitates is formed in Nb-IF.<BR>If the content of Ti exceeds the amount equivalent to form TiN, excess Ti forms fine TiC precipitates, and the yield stress tends to increase, while r-value does not decrease so much compared to the above-mentioned case.<BR>If the Ti is added more than amount equivalent to nitrogen and carbon content, the behavior of mechanical properties tends to become nearly the same as that of Ti-IF. This is attributable to the increase of the size of TiC precipitates.

収録刊行物

• 鉄と鋼

  鉄と鋼 73 (2), 341-348, 1987

  一般社団法人 日本鉄鋼協会

キーワード

• Materials Chemistry
• Metals and Alloys
• Physical and Theoretical Chemistry
• Condensed Matter Physics

詳細情報

• CRID: 1390001205183220992
• NII論文ID: 110001480103
• NII書誌ID: AN00151251
• DOI: 10.2355/tetsutohagane1955.73.2_341
• ISSN: 18832954
• ISSN: 00211575
• NDL書誌ID: 3120343
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3120343
• Web Site: https://www.jstage.jst.go.jp/article/tetsutohagane1955/73/2/73_2_341/_pdf
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