MX2017012438A - HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME. - Google Patents
HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME.Info
- Publication number
- MX2017012438A MX2017012438A MX2017012438A MX2017012438A MX2017012438A MX 2017012438 A MX2017012438 A MX 2017012438A MX 2017012438 A MX2017012438 A MX 2017012438A MX 2017012438 A MX2017012438 A MX 2017012438A MX 2017012438 A MX2017012438 A MX 2017012438A
- Authority
- MX
- Mexico
- Prior art keywords
- steel sheet
- rolled steel
- mpa
- retained austenite
- strength
- Prior art date
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Classifications
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- 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
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- 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
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- 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
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
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- 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
- 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
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- 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
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- 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
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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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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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
-
- 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
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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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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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
- C22C38/18—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
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
-
- 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
-
- 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
- C21D2211/008—Martensite
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Electrochemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Provided are: a high-strength cold-rolled steel sheet having a tensile strength of 980 MPa or more, having good workability as evaluated by ductility and stretch-flangeability, and having excellent collision characteristics; and a method for producing said steel sheet. In this high-strength cold-rolled steel sheet, the metal structure at a position of 1/4 sheet thickness satisfies (1)-(4) below. (1) The area ratio of ferrite is 10-65%, inclusive, and the balance is a hard phase comprising at least one selected from the group consisting of bainitic ferrite, bainite, and tempered martensite, said hard phase including quenched martensite and retained austenite. (2) The volume ratio V? of retained austenite is 5-30%, inclusive. (3) The area ratio VMA of an MA structure in which quenched martensite and retained austenite are combined is 3-25%, inclusive, and the average equivalent circle diameter of the MA structure is 2.0 µm or less. (4) The ratio VMA/V? of the area ratio VMA of the MA structure to the volume ratio V? of the retained austenite is 0.50-1.50.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015071438 | 2015-03-31 | ||
JP2015225507A JP6554397B2 (en) | 2015-03-31 | 2015-11-18 | High strength cold rolled steel sheet having a tensile strength of 980 MPa or more excellent in workability and impact property, and a method of manufacturing the same |
PCT/JP2016/056169 WO2016158160A1 (en) | 2015-03-31 | 2016-03-01 | HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME |
Publications (1)
Publication Number | Publication Date |
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MX2017012438A true MX2017012438A (en) | 2018-01-26 |
Family
ID=57322703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2017012438A MX2017012438A (en) | 2015-03-31 | 2016-03-01 | HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME. |
Country Status (6)
Country | Link |
---|---|
US (1) | US20180044752A1 (en) |
EP (1) | EP3279363B1 (en) |
JP (1) | JP6554397B2 (en) |
KR (1) | KR101970095B1 (en) |
CN (1) | CN107429371B (en) |
MX (1) | MX2017012438A (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6554396B2 (en) * | 2015-03-31 | 2019-07-31 | 株式会社神戸製鋼所 | High strength cold rolled steel sheet having a tensile strength of 980 MPa or more excellent in workability and impact property, and a method of manufacturing the same |
MX2018010791A (en) | 2016-03-07 | 2019-02-07 | Jfe Steel Corp | High-strength steel plate and method for manufacturing same. |
JP6844627B2 (en) * | 2017-01-16 | 2021-03-17 | 日本製鉄株式会社 | Steel plate and its manufacturing method |
JP6901417B2 (en) * | 2018-02-21 | 2021-07-14 | 株式会社神戸製鋼所 | High-strength steel sheet and high-strength galvanized steel sheet, and their manufacturing method |
KR102437795B1 (en) * | 2018-03-30 | 2022-08-29 | 제이에프이 스틸 가부시키가이샤 | High-strength steel sheet and its manufacturing method |
MX2020010211A (en) * | 2018-03-30 | 2020-11-09 | Jfe Steel Corp | High-strength sheet steel and method for manufacturing same. |
JP6690793B1 (en) * | 2018-06-29 | 2020-04-28 | 日本製鉄株式会社 | High-strength steel sheet and method for manufacturing the same |
JP6747612B1 (en) | 2018-10-10 | 2020-08-26 | Jfeスチール株式会社 | High-strength steel sheet and method for manufacturing the same |
WO2020189530A1 (en) * | 2019-03-15 | 2020-09-24 | 日本製鉄株式会社 | Steel sheet |
KR102527545B1 (en) * | 2019-03-28 | 2023-05-03 | 닛폰세이테츠 가부시키가이샤 | high strength steel plate |
CN114585766B (en) * | 2019-10-23 | 2023-04-28 | 杰富意钢铁株式会社 | High-strength steel sheet and method for producing same |
KR102321297B1 (en) * | 2019-12-18 | 2021-11-03 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
KR102348527B1 (en) * | 2019-12-18 | 2022-01-07 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
KR102353611B1 (en) * | 2019-12-18 | 2022-01-20 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
KR102348529B1 (en) * | 2019-12-18 | 2022-01-07 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
KR102321292B1 (en) * | 2019-12-18 | 2021-11-03 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
KR102321285B1 (en) * | 2019-12-18 | 2021-11-03 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
KR102321295B1 (en) * | 2019-12-18 | 2021-11-03 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
KR102321287B1 (en) * | 2019-12-18 | 2021-11-03 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
KR102321288B1 (en) * | 2019-12-18 | 2021-11-03 | 주식회사 포스코 | High strength steel sheet having excellent workability and method for manufacturing the same |
CN111733367B (en) * | 2020-07-08 | 2021-07-09 | 东莞理工学院 | High-strength steel with nanometer, layered and metastable bone tissue and preparation method thereof |
CN113215484B (en) * | 2021-04-14 | 2022-04-19 | 首钢集团有限公司 | Phase-change induced plasticity steel and preparation method and application thereof |
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GB1484862A (en) | 1973-09-12 | 1977-09-08 | Zenith Carburetter Co Ltd | Cold start fuel/air mixture supply devices for internal combustion engines |
DE2519190C3 (en) | 1975-04-30 | 1979-07-19 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Copy grinder for true-to-size grinding of blades for turbines and compressors |
JPS5487916A (en) | 1977-12-24 | 1979-07-12 | Nippon Accumulator Kk | Special fluid feed method employing accumulator |
JP3740779B2 (en) * | 1997-03-12 | 2006-02-01 | Jfeスチール株式会社 | Steel plate for easy open can lid excellent in openability and rivet formability, manufacturing method thereof, and easy open can lid |
EP2202327B1 (en) * | 2007-10-25 | 2020-12-02 | JFE Steel Corporation | Method for manufacturing a high-strength galvanized steel sheet with excellent formability |
JP5369663B2 (en) * | 2008-01-31 | 2013-12-18 | Jfeスチール株式会社 | High-strength hot-dip galvanized steel sheet excellent in workability and manufacturing method thereof |
JP5487916B2 (en) * | 2009-11-30 | 2014-05-14 | 新日鐵住金株式会社 | High-strength galvanized steel sheet having a tensile maximum strength of 900 MPa or more excellent in impact absorption energy and a method for producing the same |
JP5668337B2 (en) * | 2010-06-30 | 2015-02-12 | Jfeスチール株式会社 | Ultra-high-strength cold-rolled steel sheet excellent in ductility and delayed fracture resistance and method for producing the same |
CA2805834C (en) * | 2010-08-12 | 2016-06-07 | Jfe Steel Corporation | High-strength cold rolled sheet having excellent formability and crashworthiness and method for manufacturing the same |
US9745639B2 (en) | 2011-06-13 | 2017-08-29 | Kobe Steel, Ltd. | High-strength steel sheet excellent in workability and cold brittleness resistance, and manufacturing method thereof |
MX356410B (en) * | 2011-07-06 | 2018-05-24 | Nippon Steel & Sumitomo Metal Corp | Cold-rolled steel sheet. |
EP2740812B1 (en) * | 2011-07-29 | 2019-09-11 | Nippon Steel Corporation | High-strength steel sheet excellent in impact resistance and manufacturing method thereof,and high-strength galvanized steel sheet and manufacturing method thereof |
JP5408314B2 (en) * | 2011-10-13 | 2014-02-05 | Jfeスチール株式会社 | High-strength cold-rolled steel sheet excellent in deep drawability and material uniformity in the coil and method for producing the same |
JP5632947B2 (en) * | 2012-12-12 | 2014-11-26 | 株式会社神戸製鋼所 | High-strength steel sheet excellent in workability and low-temperature toughness and method for producing the same |
JP5776761B2 (en) * | 2013-12-27 | 2015-09-09 | 新日鐵住金株式会社 | Cold rolled steel sheet and method for producing the same |
US10253389B2 (en) * | 2014-03-31 | 2019-04-09 | Jfe Steel Corporation | High-yield-ratio, high-strength cold-rolled steel sheet and production method therefor |
-
2015
- 2015-11-18 JP JP2015225507A patent/JP6554397B2/en active Active
-
2016
- 2016-03-01 CN CN201680017729.7A patent/CN107429371B/en active Active
- 2016-03-01 KR KR1020177030773A patent/KR101970095B1/en active IP Right Grant
- 2016-03-01 EP EP16772044.0A patent/EP3279363B1/en active Active
- 2016-03-01 US US15/554,875 patent/US20180044752A1/en not_active Abandoned
- 2016-03-01 MX MX2017012438A patent/MX2017012438A/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP3279363A4 (en) | 2018-08-15 |
CN107429371B (en) | 2020-04-21 |
US20180044752A1 (en) | 2018-02-15 |
EP3279363A1 (en) | 2018-02-07 |
CN107429371A (en) | 2017-12-01 |
EP3279363B1 (en) | 2020-05-13 |
JP2016194139A (en) | 2016-11-17 |
JP6554397B2 (en) | 2019-07-31 |
KR20170130578A (en) | 2017-11-28 |
KR101970095B1 (en) | 2019-04-17 |
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