書誌事項
- タイトル別名
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- Stretch-flangeability of High Strength Hot Rolled Steel Sheets with Bainitic-ferrite Microstructure
- 力学特性 ベイニティック・フェライト組織高強度熱延鋼板の伸びフランジ性
- リキガク トクセイ ベイニティック フェライト ソシキ コウキョウド ネツエン コウハン ノ ノビ フランジセイ
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説明
Recently, high strength hot rolled steel sheets have been applied to mainly chassises and wheels and high formability, especially high stretch-flangeability is required on those parts. Bainitic-ferrite single phase microstructure has been proposed to obtain the high stretch-flange formability. In this paper, the effects of metallurgical factors of bainitic-ferrite single phase microstructure on stretch-flangeability is studied.<BR>The effects of atomic ratio of Ti by C of the bainitic ferrite steel and the void creation morphology of bainitic-ferrite, bainite and ferrite-pearlite steel after stretch flange formation are investigated. The bainitic-ferrite steels with access of 1.0 atomic ratio of Ti by C shows highest stretch-flangeability among the studied steels because cementite is not existed.<BR>Cemmentite existed in baintic-ferrite steels with 0.5 atomic ratio of Ti by C, bainite and ferrite-pearlite steels, causes the void initiation during stretch flange formation. In addition of above mentioned, the stretch-flangeability is deteriorated by TiC precipitate and increase grain size.
収録刊行物
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- 鉄と鋼
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鉄と鋼 87 (3), 146-151, 2001
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390001205182899840
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- NII論文ID
- 110001457284
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
- http://id.crossref.org/issn/00211575
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- NDL書誌ID
- 5685093
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- データソース種別
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- JaLC
- NDLサーチ
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