EP3666919A4 - Plated steel sheet having excellent surface quality, strength and ductility - Google Patents

Plated steel sheet having excellent surface quality, strength and ductility Download PDF

Info

Publication number
EP3666919A4
EP3666919A4 EP18845253.6A EP18845253A EP3666919A4 EP 3666919 A4 EP3666919 A4 EP 3666919A4 EP 18845253 A EP18845253 A EP 18845253A EP 3666919 A4 EP3666919 A4 EP 3666919A4
Authority
EP
European Patent Office
Prior art keywords
ductility
strength
steel sheet
plated steel
surface quality
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
Application number
EP18845253.6A
Other languages
German (de)
French (fr)
Other versions
EP3666919A1 (en
EP3666919B1 (en
Inventor
Yong-Woo Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP3666919A1 publication Critical patent/EP3666919A1/en
Publication of EP3666919A4 publication Critical patent/EP3666919A4/en
Application granted granted Critical
Publication of EP3666919B1 publication Critical patent/EP3666919B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • C21D8/0221—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
    • C22C18/00—Alloys based on zinc
    • 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
    • C22C38/06—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
    • C22C38/12—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
    • 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C23C2/0224—Two or more thermal pretreatments
    • 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
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP18845253.6A 2017-08-09 2018-08-03 Plated steel sheet having excellent surface quality, strength and ductility Active EP3666919B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170101268A KR101977474B1 (en) 2017-08-09 2017-08-09 Plated steel sheet having excellent surface quality, strength and ductility
PCT/KR2018/008848 WO2019031773A1 (en) 2017-08-09 2018-08-03 Plated steel sheet having excellent surface quality, strength and ductility

Publications (3)

Publication Number Publication Date
EP3666919A1 EP3666919A1 (en) 2020-06-17
EP3666919A4 true EP3666919A4 (en) 2020-06-17
EP3666919B1 EP3666919B1 (en) 2023-11-08

Family

ID=65272396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18845253.6A Active EP3666919B1 (en) 2017-08-09 2018-08-03 Plated steel sheet having excellent surface quality, strength and ductility

Country Status (8)

Country Link
US (1) US20200377963A1 (en)
EP (1) EP3666919B1 (en)
JP (1) JP6952869B2 (en)
KR (1) KR101977474B1 (en)
CN (1) CN110997963A (en)
ES (1) ES2970206T3 (en)
PT (1) PT3666919T (en)
WO (1) WO2019031773A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102492030B1 (en) * 2020-12-21 2023-01-26 주식회사 포스코 High strength hot rolled steel sheet having low yield ratio and method of manufacturing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080202639A1 (en) * 2005-08-03 2008-08-28 Toshirou Tomida Hot-rolled steel sheet and cold-rolled steel sheet and manufacturing method thereof
US20130319582A1 (en) * 2011-03-31 2013-12-05 Nippon Steel & Sumitomo Metal Corporation Bainite-containing-type high-strength hot-rolled steel sheet having excellent isotropic workability and manufacturing method thereof
JP2014095146A (en) * 2012-10-10 2014-05-22 Jfe Steel Corp Steel sheet for welded structure excellent in fatigue crack propagation resistance and its manufacturing method
US20150284819A1 (en) * 2012-08-15 2015-10-08 Nippon Steel & Sumitomo Metal Corporation Steel sheet for hot stamping, method of manufacturing the same, and hot stamped steel sheet member

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0673438A (en) * 1992-08-28 1994-03-15 Toyota Motor Corp High workability steel sheet excellent in high strengthening characteristic by irradiation with high density energy source
FI114484B (en) 2002-06-19 2004-10-29 Rautaruukki Oyj Hot rolled strip steel and its manufacturing process
JP4362319B2 (en) 2003-06-02 2009-11-11 新日本製鐵株式会社 High strength steel plate with excellent delayed fracture resistance and method for producing the same
JP5321571B2 (en) 2004-11-30 2013-10-23 Ｊｆｅスチール株式会社 Manufacturing method of high strength hot-rolled steel sheet
TWI318645B (en) * 2005-02-16 2009-12-21 Nippon Steel Corp Hot rolled steel wire material having superior processability for cold forgine after spheroidization, spheroidized steel wire having superior processability for cold forgine and methods for manufacturing the same
JP4449795B2 (en) * 2005-03-22 2010-04-14 住友金属工業株式会社 Hot-rolled steel sheet for hot pressing, manufacturing method thereof, and manufacturing method of hot-press formed member
JP5250939B2 (en) * 2005-03-31 2013-07-31 Ｊｆｅスチール株式会社 Method for producing galvannealed steel sheet
JP5040197B2 (en) * 2006-07-10 2012-10-03 Ｊｆｅスチール株式会社 Hot-rolled thin steel sheet with excellent workability and excellent strength and toughness after heat treatment and method for producing the same
JP5194878B2 (en) * 2007-04-13 2013-05-08 Ｊｆｅスチール株式会社 High-strength hot-dip galvanized steel sheet excellent in workability and weldability and method for producing the same
JP5222711B2 (en) * 2008-12-22 2013-06-26 新日鐵住金株式会社 Medium and high carbon steel sheet and manufacturing method thereof
FI122313B (en) 2010-06-07 2011-11-30 Rautaruukki Oyj Process for the production of hot rolled steel product and hot rolled steel
CA2869700C (en) * 2012-04-12 2017-12-19 Jfe Steel Corporation Hot rolled steel sheet for square column for building structural members and method for manufacturing the same
JP5825189B2 (en) * 2012-04-24 2015-12-02 新日鐵住金株式会社 High-strength hot-rolled steel sheet excellent in elongation, hole expansibility and low-temperature toughness, and method for producing the same
JP6201570B2 (en) * 2013-09-25 2017-09-27 新日鐵住金株式会社 High-strength hot-rolled steel sheet excellent in workability and welding characteristics and manufacturing method thereof
JP6201571B2 (en) * 2013-09-25 2017-09-27 新日鐵住金株式会社 High-strength hot-rolled steel sheet excellent in hole expansibility, elongation and welding characteristics and method for producing the same
KR20150074978A (en) * 2013-12-24 2015-07-02 주식회사 포스코 HOT DIP Zn-Al-Mg ALLOY PLATED STEEL SHEET HAVING EXCELLENT GALVANIZABILITY AND METHOD FOR MANUFACTURING THE SAME
CN104513930A (en) * 2014-12-19 2015-04-15 宝山钢铁股份有限公司 Ultrahigh-strength hot-rolled complex phase steel plate and steel strip with good bending and broaching performance and manufacturing method thereof
KR101672103B1 (en) * 2014-12-22 2016-11-02 주식회사 포스코 Hot rolled steel sheet for hot galvanized iron having high surface quality and high strength, and method for producing the same
CN107208234B (en) * 2015-01-30 2019-04-16 杰富意钢铁株式会社 High-intensitive coated steel sheet and its manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080202639A1 (en) * 2005-08-03 2008-08-28 Toshirou Tomida Hot-rolled steel sheet and cold-rolled steel sheet and manufacturing method thereof
US20130319582A1 (en) * 2011-03-31 2013-12-05 Nippon Steel & Sumitomo Metal Corporation Bainite-containing-type high-strength hot-rolled steel sheet having excellent isotropic workability and manufacturing method thereof
US20150284819A1 (en) * 2012-08-15 2015-10-08 Nippon Steel & Sumitomo Metal Corporation Steel sheet for hot stamping, method of manufacturing the same, and hot stamped steel sheet member
JP2014095146A (en) * 2012-10-10 2014-05-22 Jfe Steel Corp Steel sheet for welded structure excellent in fatigue crack propagation resistance and its manufacturing method

Also Published As

Publication number Publication date
CN110997963A (en) 2020-04-10
WO2019031773A1 (en) 2019-02-14
PT3666919T (en) 2024-02-08
EP3666919A1 (en) 2020-06-17
EP3666919B1 (en) 2023-11-08
ES2970206T3 (en) 2024-05-27
JP2020530068A (en) 2020-10-15
KR20190016826A (en) 2019-02-19
KR101977474B1 (en) 2019-05-10
US20200377963A1 (en) 2020-12-03
JP6952869B2 (en) 2021-10-27

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