KR101330903B1 - 고강도 강판 및 그 제조 방법 - Google Patents
고강도 강판 및 그 제조 방법 Download PDFInfo
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- KR101330903B1 KR101330903B1 KR1020117012908A KR20117012908A KR101330903B1 KR 101330903 B1 KR101330903 B1 KR 101330903B1 KR 1020117012908 A KR1020117012908 A KR 1020117012908A KR 20117012908 A KR20117012908 A KR 20117012908A KR 101330903 B1 KR101330903 B1 KR 101330903B1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/007—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of special steel or specially treated steel, e.g. stainless steel or locally surface hardened steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Transportation (AREA)
- Combustion & Propulsion (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
12≤ 2.0Si + 5.5Al + Cr + 1.5Mo ≤ 25 (1)
13≤ 30C + 0.5Mn + 0.3Cu + Ni + 25N≤ 17 (2)
Description
도 2는 압연율과 인장 시험에서 측정된 전체 신장률의 관계를 도시하는 그래프이다.
도 3은 압연율과 인장 시험에서 측정된 항복점의 관계를 도시하는 그래프이다.
도 4는 항복점과 전체 신장률의 관계를 도시하는 그래프이다.
도 5는 본 발명의 실시예의 강판에 있어서의, 압연 방향에 평행한 종단면에서의 광학 현미경 사진이다.
Claims (9)
- 중량%로, 0.25% 이상 0.5% 이하의 C, 4% 이상 14% 이하의 Mn, 6.5% 이상 9.5% 이하의 Cr, 0.3% 이상 3% 이하의 Si, 0.005% 이상 0.05% 이하의 N을 함유하고, 0.05% 이상 4% 이하의 Al, 0.1% 이상 4% 이하의 Ni, 0.05% 이상 3% 이하의 Mo, 0.1% 이상 2% 이하의 Cu 중 1종 또는 2종 이상을 더 함유하는 고강도 강판으로서,
이 고강도 강판은, 하기의 식 (1) 및 (2)[여기서, 원소 기호는, 그 원소의 함유량(중량%)을 나타내고, 이들 식은 크롬 등량 또는 니켈 등량을 나타냄]를 만족하고, 잔부가 Fe 및 불가피한 불순물로 구성되는 화학 성분 조성을 갖고, 강이 오스테나이트로 이루어져 있으며,
항복 강도가 1000 MPa 이상, 전체 신장률이 20% 이상인 것을 특징으로 하는 고강도 강판.
(수학식 1)
12 ≤ 2.0Si + 5.5Al + Cr + 1.5Mo ≤ 25 (1)
13 ≤ 30C + 0.5Mn + 0.3Cu + Ni + 25N ≤ 17 (2) - 삭제
- 제1항에 있어서, 상기 강판은, 합계 함유율로 10% 이하의 마르텐사이트를 포함하고, 압연 방향에 평행한 단면에서 측정한 결정 입경의 종횡비가 2 이상인 것을 특징으로 하는 고강도 강판.
- 제1항에 있어서, 고강도 강판이 인장 변형된 때에, 인장 변형 1%에 대하여 마르텐사이트의 합계 함유율의 증가 비율이 0.6% 이상인 것을 특징으로 하는 고강도 강판.
- 제1항, 제3항 또는 제4항 중 어느 하나의 항에 기재된 고강도 강판을 제조하는 제조 방법으로서,
정해진 성분을 함유하는 슬래브(slab)를 열간 압연하는 단계와,
상기 슬래브를, 합계 압연율 R(%) 및 압연 온도 T(℃)가 하기 식 (3) 및 (4)를 만족하도록 압연하는 단계를 포함하는 것을 특징으로 하는 고강도 강판의 제조 방법.
(수학식 2)
20%≤R≤70% (3)
60℃≤T≤500℃ (4) - 삭제
- 삭제
- 제3항에 있어서, 고강도 강판이 인장 변형된 때에, 인장 변형 1%에 대하여 마르텐사이트의 합계 함유율의 증가 비율이 0.6% 이상인 것을 특징으로 하는 고강도 강판.
- 제8항에 기재된 고강도 강판을 제조하는 제조 방법으로서,
정해진 성분을 함유하는 슬래브(slab)를 열간 압연하는 단계와,
상기 슬래브를, 합계 압연율 R(%) 및 압연 온도 T(℃)가 하기 식 (3) 및 (4)를 만족하도록 압연하는 단계를 포함하는 것을 특징으로 하는 고강도 강판의 제조 방법.
(수학식 2)
20%≤R≤70% (3)
60℃≤T≤500℃ (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2008/003188 WO2010052751A1 (en) | 2008-11-05 | 2008-11-05 | High-strength steel sheet and the method for production therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20120083847A KR20120083847A (ko) | 2012-07-26 |
| KR101330903B1 true KR101330903B1 (ko) | 2013-11-18 |
Family
ID=42152568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020117012908A Expired - Fee Related KR101330903B1 (ko) | 2008-11-05 | 2008-11-05 | 고강도 강판 및 그 제조 방법 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9267193B2 (ko) |
| EP (1) | EP2350332B1 (ko) |
| JP (1) | JP5286409B2 (ko) |
| KR (1) | KR101330903B1 (ko) |
| WO (1) | WO2010052751A1 (ko) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5403660B2 (ja) * | 2009-03-09 | 2014-01-29 | 本田技研工業株式会社 | 高強度鋼板およびその製造方法 |
| EP3034641B1 (en) * | 2013-08-14 | 2019-10-09 | Posco | Ultrahigh-strength steel sheet and manufacturing method thereof |
| KR101611697B1 (ko) * | 2014-06-17 | 2016-04-14 | 주식회사 포스코 | 확관성과 컬렙스 저항성이 우수한 고강도 확관용 강재 및 확관된 강관과 이들의 제조방법 |
| DE102015112886A1 (de) * | 2015-08-05 | 2017-02-09 | Salzgitter Flachstahl Gmbh | Hochfester aluminiumhaltiger Manganstahl, ein Verfahren zur Herstellung eines Stahlflachprodukts aus diesem Stahl und hiernach hergestelltes Stahlflachprodukt |
| JP6197974B2 (ja) * | 2015-10-06 | 2017-09-20 | 新日鐵住金株式会社 | オーステナイト系ステンレス鋼板およびその製造方法 |
| TWI623622B (zh) * | 2016-01-14 | 2018-05-11 | Ak鋼鐵資產公司 | 溫軋含介穩態奧氏體的鋼 |
| DE102016117494A1 (de) | 2016-09-16 | 2018-03-22 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines umgeformten Bauteils aus einem mittelmanganhaltigen Stahlflachprodukt und ein derartiges Bauteil |
| ES2903435T3 (es) * | 2016-09-29 | 2022-04-01 | Outokumpu Oy | Método para la deformación en frío de un acero austenítico |
| WO2018083028A1 (de) * | 2016-11-02 | 2018-05-11 | Salzgitter Flachstahl Gmbh | Nahtloses rohr aus einem mittelmanganhaltigen stahl und verfahren zu seiner herstellung |
| EP3535431B1 (de) | 2016-11-02 | 2021-06-09 | Salzgitter Flachstahl GmbH | Mittelmanganstahlprodukt zum tieftemperatureinsatz und verfahren zu seiner herstellung |
| RU2692151C1 (ru) * | 2017-12-28 | 2019-06-21 | Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") | Способ получения листов высокопрочных аустенитных марганцовистых сталей |
| CA3087867A1 (en) * | 2018-01-17 | 2019-07-25 | The Nanosteel Company, Inc. | Alloys and methods to develop yield strength distributions during formation of metal parts |
| DE102018102974A1 (de) | 2018-02-09 | 2019-08-14 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines Bauteils durch Warmumformen eines Vorproduktes aus manganhaltigem Stahl und ein warmumgeformtes Stahlbauteil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118917A (en) * | 1974-08-09 | 1976-02-14 | Nippon Steel Corp | Jinseinosugureta kokyodooosutenaitokono seizoho |
| JPH0681033A (ja) * | 1990-08-30 | 1994-03-22 | Ugine Savoie | 不安定オーステナイト鋼から非常に高い破壊荷重の製品を製造する方法及びその方法によって得られる製品 |
| JP2004162120A (ja) * | 2002-11-13 | 2004-06-10 | Nippon Steel Corp | 溶接性・溶接部の耐磨耗性および耐食性に優れた耐摩耗鋼およびその製造方法 |
| JP2007146233A (ja) * | 2005-11-28 | 2007-06-14 | Nippon Steel Corp | 鋼製自動車用構造部品の製造方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2113537A (en) * | 1935-10-29 | 1938-04-05 | Heraeus Vacuumschmeise A G | Method of rolling and treating silicon steel |
| JPS6054374B2 (ja) * | 1982-04-21 | 1985-11-29 | 新日本製鐵株式会社 | オ−ステナイト鋼板および鋼帯の製造方法 |
| US4494988A (en) | 1983-12-19 | 1985-01-22 | Armco Inc. | Galling and wear resistant steel alloy |
| ID28183A (id) | 1997-06-09 | 2001-05-10 | Procter & Gamble | Komposisi-komposisi pembersih makanan yang mengandung siklodekstrin |
| DE19727759C2 (de) | 1997-07-01 | 2000-05-18 | Max Planck Inst Eisenforschung | Verwendung eines Leichtbaustahls |
| DE19900199A1 (de) * | 1999-01-06 | 2000-07-13 | Ralf Uebachs | Leichtbaustahllegierung |
| FR2796083B1 (fr) * | 1999-07-07 | 2001-08-31 | Usinor | Procede de fabrication de bandes en alliage fer-carbone-manganese, et bandes ainsi produites |
| ATE298009T1 (de) | 2001-09-28 | 2005-07-15 | Daimler Chrysler Ag | Hochfester duplex-/triplex-leichtbaustahl und seine verwendung |
| DE10259230B4 (de) | 2002-12-17 | 2005-04-14 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen eines Stahlprodukts |
| DE102005024029B3 (de) | 2005-05-23 | 2007-01-04 | Technische Universität Bergakademie Freiberg | Austenitischer Leichtbaustahl und seine Verwendung |
| JP5355905B2 (ja) * | 2007-04-10 | 2013-11-27 | 新日鐵住金ステンレス株式会社 | 衝撃吸収特性、形状凍結性及びフランジ部切断性に優れた、自動車、二輪車または鉄道車両用構造部材並びにその製造方法 |
-
2008
- 2008-11-05 WO PCT/JP2008/003188 patent/WO2010052751A1/en not_active Ceased
- 2008-11-05 US US13/123,649 patent/US9267193B2/en active Active
- 2008-11-05 EP EP08877947.5A patent/EP2350332B1/en not_active Not-in-force
- 2008-11-05 KR KR1020117012908A patent/KR101330903B1/ko not_active Expired - Fee Related
- 2008-11-05 JP JP2011508146A patent/JP5286409B2/ja not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118917A (en) * | 1974-08-09 | 1976-02-14 | Nippon Steel Corp | Jinseinosugureta kokyodooosutenaitokono seizoho |
| JPH0681033A (ja) * | 1990-08-30 | 1994-03-22 | Ugine Savoie | 不安定オーステナイト鋼から非常に高い破壊荷重の製品を製造する方法及びその方法によって得られる製品 |
| JP2004162120A (ja) * | 2002-11-13 | 2004-06-10 | Nippon Steel Corp | 溶接性・溶接部の耐磨耗性および耐食性に優れた耐摩耗鋼およびその製造方法 |
| JP2007146233A (ja) * | 2005-11-28 | 2007-06-14 | Nippon Steel Corp | 鋼製自動車用構造部品の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5286409B2 (ja) | 2013-09-11 |
| EP2350332A4 (en) | 2012-05-30 |
| EP2350332B1 (en) | 2014-05-21 |
| EP2350332A1 (en) | 2011-08-03 |
| KR20120083847A (ko) | 2012-07-26 |
| US9267193B2 (en) | 2016-02-23 |
| JP2012507620A (ja) | 2012-03-29 |
| US20120070330A1 (en) | 2012-03-22 |
| WO2010052751A1 (en) | 2010-05-14 |
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