EP3239331A4 - Hochfester stahl mit hervorragender sprödbruchstablität und herstellungsverfahren dafür - Google Patents
Hochfester stahl mit hervorragender sprödbruchstablität und herstellungsverfahren dafür Download PDFInfo
- Publication number
- EP3239331A4 EP3239331A4 EP15873589.4A EP15873589A EP3239331A4 EP 3239331 A4 EP3239331 A4 EP 3239331A4 EP 15873589 A EP15873589 A EP 15873589A EP 3239331 A4 EP3239331 A4 EP 3239331A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- production method
- strength steel
- method therefor
- brittle crack
- crack arrestability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000010959 steel Substances 0.000 title 1
Classifications
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing Ni
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- 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
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
-
- 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/05—Grain orientation
-
- 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
- C21D2211/002—Bainite
-
- 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
- C21D2211/005—Ferrite
-
- 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
- C21D2211/009—Pearlite
-
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20140189132 | 2014-12-24 | ||
PCT/KR2015/014054 WO2016105062A1 (ko) | 2014-12-24 | 2015-12-21 | 취성균열전파 저항성이 우수한 고강도 강재 및 그 제조방법 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3239331A1 EP3239331A1 (de) | 2017-11-01 |
EP3239331A4 true EP3239331A4 (de) | 2017-11-08 |
EP3239331B1 EP3239331B1 (de) | 2020-10-28 |
Family
ID=56151008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15873589.4A Active EP3239331B1 (de) | 2014-12-24 | 2015-12-21 | Hochfester stahl mit hervorragender sprödbruchstablität und herstellungsverfahren dafür |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170327922A1 (de) |
EP (1) | EP3239331B1 (de) |
JP (1) | JP6788589B2 (de) |
KR (1) | KR101746999B1 (de) |
CN (1) | CN107109597B (de) |
WO (1) | WO2016105062A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10822671B2 (en) | 2014-12-24 | 2020-11-03 | Posco | High-strength steel having superior brittle crack arrestability, and production method therefor |
CN107109592A (zh) | 2014-12-24 | 2017-08-29 | Posco公司 | 耐脆性裂纹扩展性优异的高强度钢材及其制造方法 |
JP6504131B2 (ja) * | 2016-08-09 | 2019-04-24 | Jfeスチール株式会社 | 高強度厚鋼板およびその製造方法 |
KR101917455B1 (ko) * | 2016-12-22 | 2018-11-09 | 주식회사 포스코 | 표면부 nrl-dwt 물성이 우수한 극후물 강재 및 그 제조방법 |
KR102209561B1 (ko) * | 2018-11-30 | 2021-01-28 | 주식회사 포스코 | 취성균열전파 저항성이 우수한 극후물 강재 및 그 제조방법 |
KR102209547B1 (ko) * | 2018-12-19 | 2021-01-28 | 주식회사 포스코 | 취성균열개시 저항성이 우수한 구조용 극후물 강재 및 그 제조방법 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08120338A (ja) * | 1994-09-07 | 1996-05-14 | Nippon Steel Corp | 溶接継手部の脆性破壊伝播停止性能の優れた溶接構造用厚鋼板の製造方法 |
JPH11279684A (ja) * | 1998-03-26 | 1999-10-12 | Nippon Steel Corp | 超大入熱溶接熱影響部の靱性に優れた溶接用高張力鋼 |
KR100723201B1 (ko) * | 2005-12-16 | 2007-05-29 | 주식회사 포스코 | 다층용접부 인성이 우수한 고강도 고인성 강 및 그제조방법 |
EP2006407A1 (de) * | 2006-04-13 | 2008-12-24 | Nippon Steel Corporation | Hochfeste stahlplatte mit erhöhter bruchstablität |
EP2119803A1 (de) * | 2007-03-05 | 2009-11-18 | Nippon Steel Corporation | Dicke hochfeste stahlplatte und herstellungsverfahren dafür |
EP2390047A1 (de) * | 2009-01-14 | 2011-11-30 | Nippon Steel Corporation | Schweissstruktur mit sprödheitsbruchhemmeigenschaften |
EP2660346A2 (de) * | 2010-12-28 | 2013-11-06 | Posco | Hochfestes stahlblech mit ausgezeichneter zähigkeit bei kryogenen temperaturen und herstellungsverfahren dafür |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04180521A (ja) * | 1990-11-14 | 1992-06-26 | Kobe Steel Ltd | 高降伏強度高靭性厚肉高張力鋼板の製造方法 |
JP4830330B2 (ja) * | 2005-03-25 | 2011-12-07 | Jfeスチール株式会社 | 厚肉低降伏比高張力鋼板の製造方法 |
KR100660230B1 (ko) * | 2005-12-26 | 2006-12-21 | 주식회사 포스코 | 두께 중심부의 강도와 인성이 우수한 용접구조용 극후물강판 및 그 제조방법 |
JP5064150B2 (ja) * | 2006-12-14 | 2012-10-31 | 新日本製鐵株式会社 | 脆性き裂伝播停止性能に優れた高強度厚鋼板 |
KR100957964B1 (ko) * | 2007-12-26 | 2010-05-17 | 주식회사 포스코 | 용접열영향부의 저온인성과 인장강도가 우수한 고강도저항복비 구조용 강재 및 그 제조방법 |
KR101360737B1 (ko) * | 2009-12-28 | 2014-02-07 | 주식회사 포스코 | 취성 균열 발생 저항성이 우수한 고강도 강판 및 그 제조방법 |
JP5598485B2 (ja) * | 2011-02-08 | 2014-10-01 | Jfeスチール株式会社 | 長大脆性き裂伝播停止特性に優れる板厚50mm以上の厚鋼板およびその製造方法 |
JP5304925B2 (ja) * | 2011-12-27 | 2013-10-02 | Jfeスチール株式会社 | 脆性亀裂伝播停止特性に優れた構造用高強度厚鋼板およびその製造方法 |
JP5733425B2 (ja) * | 2011-12-27 | 2015-06-10 | Jfeスチール株式会社 | 脆性き裂伝播停止特性に優れた高強度厚鋼板およびその製造方法 |
TWI463018B (zh) * | 2012-04-06 | 2014-12-01 | Nippon Steel & Sumitomo Metal Corp | 具優異裂縫阻滯性之高強度厚鋼板 |
JP2013221189A (ja) * | 2012-04-17 | 2013-10-28 | Nippon Steel & Sumitomo Metal Corp | 脆性亀裂伝播停止性能に優れた高強度厚鋼板 |
JP2013221190A (ja) * | 2012-04-17 | 2013-10-28 | Nippon Steel & Sumitomo Metal Corp | 脆性亀裂伝播停止性能に優れた高強度厚鋼板 |
KR20130134333A (ko) * | 2012-05-30 | 2013-12-10 | 현대제철 주식회사 | 고강도 강판 및 그 제조 방법 |
KR20140098900A (ko) * | 2013-01-31 | 2014-08-11 | 현대제철 주식회사 | 고강도 극후물 강판 및 그 제조 방법 |
US10822671B2 (en) * | 2014-12-24 | 2020-11-03 | Posco | High-strength steel having superior brittle crack arrestability, and production method therefor |
CN107109592A (zh) * | 2014-12-24 | 2017-08-29 | Posco公司 | 耐脆性裂纹扩展性优异的高强度钢材及其制造方法 |
-
2015
- 2015-12-21 CN CN201580070867.7A patent/CN107109597B/zh active Active
- 2015-12-21 WO PCT/KR2015/014054 patent/WO2016105062A1/ko active Application Filing
- 2015-12-21 EP EP15873589.4A patent/EP3239331B1/de active Active
- 2015-12-21 US US15/535,582 patent/US20170327922A1/en not_active Abandoned
- 2015-12-21 JP JP2017532655A patent/JP6788589B2/ja active Active
- 2015-12-24 KR KR1020150186724A patent/KR101746999B1/ko active IP Right Grant
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08120338A (ja) * | 1994-09-07 | 1996-05-14 | Nippon Steel Corp | 溶接継手部の脆性破壊伝播停止性能の優れた溶接構造用厚鋼板の製造方法 |
JPH11279684A (ja) * | 1998-03-26 | 1999-10-12 | Nippon Steel Corp | 超大入熱溶接熱影響部の靱性に優れた溶接用高張力鋼 |
KR100723201B1 (ko) * | 2005-12-16 | 2007-05-29 | 주식회사 포스코 | 다층용접부 인성이 우수한 고강도 고인성 강 및 그제조방법 |
EP2006407A1 (de) * | 2006-04-13 | 2008-12-24 | Nippon Steel Corporation | Hochfeste stahlplatte mit erhöhter bruchstablität |
EP2119803A1 (de) * | 2007-03-05 | 2009-11-18 | Nippon Steel Corporation | Dicke hochfeste stahlplatte und herstellungsverfahren dafür |
EP2390047A1 (de) * | 2009-01-14 | 2011-11-30 | Nippon Steel Corporation | Schweissstruktur mit sprödheitsbruchhemmeigenschaften |
EP2660346A2 (de) * | 2010-12-28 | 2013-11-06 | Posco | Hochfestes stahlblech mit ausgezeichneter zähigkeit bei kryogenen temperaturen und herstellungsverfahren dafür |
Non-Patent Citations (1)
Title |
---|
See also references of WO2016105062A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3239331B1 (de) | 2020-10-28 |
WO2016105062A1 (ko) | 2016-06-30 |
CN107109597A (zh) | 2017-08-29 |
CN107109597B (zh) | 2020-01-31 |
WO2016105062A8 (ko) | 2016-11-24 |
KR101746999B1 (ko) | 2017-06-15 |
JP2018503744A (ja) | 2018-02-08 |
US20170327922A1 (en) | 2017-11-16 |
JP6788589B2 (ja) | 2020-11-25 |
EP3239331A1 (de) | 2017-11-01 |
KR20160078926A (ko) | 2016-07-05 |
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