書誌事項
- タイトル別名
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- Mechanism of Formation of Streak-shaped Defects on Ultra-low Carbon IF Steel for Automobile Outer Panels after Press Forming and Influence of Slab Reheating Temperature before Hot Rolling and Sb-addition on Defects
- ジドウシャ ガイバンヨウ ゴクテイ タンソ IFコウ ニ オケル カコウ ゴキンジョウ ケッカン ノ ハッセイ キコウ オヨビ ネツエン ゼン サイカネツ オンド ト Sb テンカ ノ エイキョウ
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抄録
Streak-shaped defects were infrequently observed on ultra-low carbon IF cold-rolled steel sheets for automotive outer panels after press-forming. The defects occurred due to heterogeneous remaining of elongated grains on the steel surface layer. Elongated grains are hard to recrystallize due to the pinning effect of small precipitates on grain boundaries. These precipitates consist mainly of Ti(NC), TiS and AlN. In order to eliminate the streak defect, lower excess Ti, lower temperature slab reheating and Sb-addition to the steel are efficient. These countermeasures result in a drastic reduction of the defect ratio. This improvement is considered to be obtained due to the reduction of small precipitates of Ti(CN), TiS and AlN in the steel surface layer.
収録刊行物
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- 鉄と鋼
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鉄と鋼 102 (4), 202-208, 2016
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
- 1390282680105026048
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- NII論文ID
- 130005140712
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
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- NDL書誌ID
- 027250634
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可