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超高強度TRIP鋼の伸びフランジ性に及ぼすYAGレーザ切断の影響
https://nagano-nct.repo.nii.ac.jp/records/123
https://nagano-nct.repo.nii.ac.jp/records/12382c7e343-e0ce-4659-b0ad-029f2b103609
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004189603.pdf (427.5 kB)
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| Item type | Departmental Bulletin Paper(1) | |||||||
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| 公開日 | 2012-05-31 | |||||||
| タイトル | ||||||||
| タイトル | 超高強度TRIP鋼の伸びフランジ性に及ぼすYAGレーザ切断の影響 | |||||||
| タイトル | ||||||||
| タイトル | Effect of YAG Laser Cutting on Stretch-flangeability of Ultra High Strength TRIP sheet steels | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | jpn | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 伸びフランジ性 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 残留オーステナイト | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 変態誘起塑性 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | TRIP鋼 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | YAGレーザ切断 | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | departmental bulletin paper | |||||||
| その他（別言語等）のタイトル | ||||||||
| その他のタイトル | Effect of YAG Laser Cutting on Stretch-flangeability of Ultra High Strength TRIP sheet steels | |||||||
| 著者 |
長坂, 明彦
× 長坂, 明彦 |
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| 著者別名 |
NAGASAKA, Akihiko
× NAGASAKA, Akihiko
WEKO
0
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | The transformation-induced plasticity (TRIP) of retained austenite is very useful to enhance the press formability of ultra high strength sheet steels. The TRIP steels with different matrix structure and different retained austenite morphology have been developed for weight reduction and shock safety up to now. The conventional TRIP-aided dual-phase steel or "TRIP-aided polygonal ferrite (PF) steel" composing of polygonal ferrite matrix and blocky retained austenite plus bainite second phase possessd an excellent stretch-formability and deep drawability. We have recently developed new type of TRIP steel or "TRIP-aided annealed martensitic (AM) steel" composing of bainitic ferrite matrix by annealed martensite matrix, and "TRIP-aided bainitic ferrite (BF) steel" composing of bainitic ferrite matrix and interlath retained austenite films. It is supposed that carbon addition is effective to rise the tensile strength of TRIP steel. So, in the present study the effect of YAG laser cutting on the stretch-flangeability of 0.1-0.6C-1.5Si-1.5Mn TRIP steels was investigated. The strength-stretch-flangeability balance (TS×λ) of holes obtained by either laser cutting and hole-punching decreased with increasing carbon content in PF, AM and BF steels. When the carbon content of 0.3 mass% or higher, the λ value in the case of laser cutting decreased to a level comparable to that in the case of hole-punching in PF steels. On the other hand, we demonstrated that YAG laser cutting contributes to the improvement of the stretch-flangeability of 1200 MPa class BF steels with 0.4 mass%. | |||||||
| 書誌情報 |
長野工業高等専門学校紀要 en : Memoirs of Nagano National College of Technology 巻 39, p. 1-4, 発行日 2005-06-30 |
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| 出版者 | ||||||||
| 出版者 | 長野工業高等専門学校 | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0286-1909 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN00179170 | |||||||
| フォーマット | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | application/pdf | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
