書誌事項
- タイトル別名
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- Influence of Various Factors on the Refinement of Martensitic Microstructures of Hot Stamped Steel Components
- ホットスタンピング ブザイ ノ マルテンサイト ソシキ ノ ビサイカ ニ オヨボス ショ インシ ノ エイキョウ
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The toughness and the resistance to delayed fracture are deteriorated with increasing strength of martenstic steels. It has been reported that these properties could be improved by grain refinement of martensite.<br>In this study, the influence of both hot stamping conditions such as heating rate, heating temperature, cooling rate, and material conditions such as hot band microstructure, cold rolling reduction, addition of micro-alloys on the grain refinement of hot stamped ultra-high strength martenstic steel components are investigated. The investigation revealed that low temperature and short time heating, high heating and cooling rates, the decrease in the coiling temperature of hot bands, the increase in cold rolling reduction and addition of micro-alloys are preferable for grain refinement of martensite. The mechanism of the grain refinement was discussed from the viewpoints of the increase in the nucleation rate of austenite during the α→γ transformation and the suppression of the austenite grain growth.
収録刊行物
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- 鉄と鋼
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鉄と鋼 99 (7), 475-483, 2013
一般社団法人 日本鉄鋼協会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001205128528256
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- NII論文ID
- 130003372549
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- NII書誌ID
- AN10528571
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- ISSN
- 1341688X
- 18832954
- 00211575
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- COI
- 1:CAS:528:DC%2BC3sXhtFSktL7L
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- NDL書誌ID
- 024728564
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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