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WO2018115946A1 - Procédé de fabrication d'une tôle d'acier revêtue - Google Patents

Procédé de fabrication d'une tôle d'acier revêtue Download PDF

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Publication number
WO2018115946A1
WO2018115946A1 PCT/IB2017/001281 IB2017001281W WO2018115946A1 WO 2018115946 A1 WO2018115946 A1 WO 2018115946A1 IB 2017001281 W IB2017001281 W IB 2017001281W WO 2018115946 A1 WO2018115946 A1 WO 2018115946A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel sheet
coating
anyone
zinc
nickel
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.)
Ceased
Application number
PCT/IB2017/001281
Other languages
English (en)
Inventor
Pascal BERTHO
Anirban Chakraborty
Hassan GHASSEMI-ARMAKI
Christian Allely
Tiago MACHADO AMORIM
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.)
ArcelorMittal SA
Original Assignee
ArcelorMittal SA
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 ArcelorMittal SA filed Critical ArcelorMittal SA
Publication of WO2018115946A1 publication Critical patent/WO2018115946A1/fr
Priority to CN201880068936.4A priority Critical patent/CN111279006A/zh
Priority to EP18793483.1A priority patent/EP3701055A1/fr
Priority to US16/754,538 priority patent/US20200340124A1/en
Priority to MX2020004309A priority patent/MX2020004309A/es
Priority to BR112020006128-0A priority patent/BR112020006128A2/pt
Priority to RU2020116428A priority patent/RU2020116428A/ru
Priority to CA3076994A priority patent/CA3076994A1/fr
Priority to JP2020522972A priority patent/JP2021501260A/ja
Priority to MA050447A priority patent/MA50447A/fr
Priority to PCT/IB2018/058157 priority patent/WO2019082037A1/fr
Priority to KR1020207011272A priority patent/KR102206933B1/ko
Anticipated expiration legal-status Critical
Priority to ZA2020/01589A priority patent/ZA202001589B/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • C23C28/025—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only with at least one zinc-based layer
    • 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
    • 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

Definitions

  • the present invention relates to a method for the manufacture of a coated steel sheet.
  • the invention is particularly well suited for the manufacture of automotive vehicles.
  • Zinc based coatings are generally used because they allows for a protection against corrosion, thanks to barrier protection and cathodic protection.
  • the barrier effect is obtained by the application of a metallic coating on steel surface.
  • the metallic coating prevents the contact between steel and corrosive atmosphere.
  • the barrier effect is independent from the nature of coating and substrate.
  • sacrificial cathodic protection is based on the fact that zinc is a metal less noble that steel. Thus, if corrosion occurs, zinc is consumed preferentially to steel. Cathodic protection is essential in areas where steel is directly exposed to corrosive atmosphere, like cut edges where the surrounding zinc will be consumed before steel.
  • US2012100391 discloses a method for manufacturing a hot-dip galvanized steel sheet having good plating qualities, plating adhesion and spot weldability, the method comprising:
  • the alloy phase is a Fe- Zn alloy phase accounting for 1-20% of the cross-sectional area of the galvanized layer.
  • the object of the invention is to provide a steel sheet coated with a metallic coating which does not have LME issues. It aims to make available, in particular, an easy to implement method in order to obtain a part which does not have LME issues after the forming and/or the welding.
  • the method can also comprise any characteristics of claims 2 to 15.
  • the steel sheet can also comprise any characteristics of claims 16 to 22.
  • spot welded joint can also comprise characteristics of claims 23 to 26.
  • steel or “steel sheet” means a steel sheet, a coil, a plate having a composition allowing the part to achieve a tensile strength up to 2500 MPa and more preferably up to 2000MPa.
  • the tensile strength is above or equal to 500 MPa, preferably above or equal to 980 MPa, advantageously above or equal to 1 180 MPa and even above or equal 1470 MPa.
  • the invention relates to method for the manufacture of a coated steel sheet comprising the following successive steps:
  • step B the coating of the steel sheet obtained in step A) with a first coating comprising nickel, such first coating not comprising iron, having a thickness equal or above 0.5pm and
  • the steel sheet is annealed in a continuous annealing.
  • the continuous annealing comprises a heating, a soaking and a cooling step. It can further comprise a pre-heating step.
  • the thermal treatment is performed in an atmosphere comprising from 1 to 30% of H 2 at a dew point between -10 and -60°C.
  • the atmosphere comprises from 1 to 10% of H 2 at a dew point between -10°C and -60°C.
  • the first coating comprising nickel is deposited by any deposition method known by the man skilled in the art. It can be deposited by vacuum deposition or electro-plating method. Preferably, it is deposited by electro-plating method.
  • the first coating comprises above 80%, more preferably above 90% by weight of nickel.
  • the first coating does not comprise phosphorus, nickel hydroxide or sulfur compounds such as sulfate salt.
  • the first coating consists of nickel.
  • the amount of nickel is >99% by weight and preferably is of 100%.
  • the first coating has a thickness equal or above ⁇ . ⁇ and advantageously equal or above 1 .6 pm. More preferably, the first coating has a thickness between 1 .8 to 7.0pm.
  • the second layer comprises above 50%, more preferably above 75% of zinc and advantageously above 90% of zinc.
  • the second layer does not comprise nickel.
  • the second layer can be deposited by any deposition method known by the man skilled in the art. It can be by hot-dip coating, by vacuum deposition or by electro-galvanizing.
  • the coating based on zinc comprises 0.01 -8.0% Al, optionally 0.2-8.0% Mg, the remainder being Zn.
  • the coating based on zinc is deposited by hot-dip galvanizing.
  • the molten bath can also comprise unavoidable impurities and residuals elements from feeding ingots or from the passage of the steel sheet in the molten bath.
  • the optionally impurities are chosen from Sr, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Zr or Bi, the content by weight of each additional element being inferior to 0.3% by weight.
  • the residual elements from feeding ingots or from the passage of the steel sheet in the molten bath can be iron with a content up to 5.0%, preferably 3.0%, by weight.
  • the second layer consists of zinc.
  • the percentage of Aluminum is comprised between 0.15 and 0.40% in the bath.
  • the steel sheet has a microstructure comprising from 1 to 50% of residual austenite, from 1 to 60% of martensite and optionally at least one element chosen from: bainite, ferrite, cementite and pearlite.
  • the martensite can be tempered or untempered.
  • the steel sheet has a microstructure comprising from 5 to 25 % of residual austenite.
  • the steel sheet has a microstructure comprising from 1 to 60% and more preferably between 10 to 60% of tempered martensite.
  • the steel sheet has a microstructure comprising from 10 to
  • bainite such bainite comprising from 10 to 20% of lower bainite, from 0 to 15% of upper bainite and from 0 to 5% of carbide free bainite.
  • the steel sheet has a microstructure comprising from 1 to 25% of ferrite.
  • the steel sheet has a microstructure comprising from 1 to 15% untempered martensite.
  • assembly After the manufacture of a steel sheet, in order to produce some parts of a vehicle, it is known to assembly by welding two metal sheets.
  • a spot welded joint is formed during the welding of at least two metal sheets, said spot being the link between the at least two metal sheets.
  • the welding is performed with an effective intensity is between 3kA and 15kA and the force applied on the electrodes is between 150 and 850 daN with said electrode active face diameter being between 4 and 10mm.
  • a spot welded joint of at least two metal sheets, comprising the coated steel sheet according to the present invention is obtained, such said joint containing less than 3 cracks having a size above 100pm and wherein the longest crack has a length below 300 pm.
  • the second metal sheet is a steel sheet or an aluminum sheet. More preferably, the second metal sheet is a steel sheet according to the present invention.
  • the spot welded joint comprises a third metal sheet being a steel sheet or an aluminum sheet.
  • the third metal sheet is a steel sheet according to the present invention.
  • the steel sheet or the spot welded joint according to the present invention can be used for the manufacture of parts for automotive vehicle.
  • Trials 1 to 4 were prepared by performing an annealing in a continuous annealing in an atmosphere comprising 5% of ⁇ 1 ⁇ 2 and 95% of N 2 at a dew point of -60°C. The steel sheets were heated at a temperature of 900°C. Then, Trials 1 to 4 were coated with a different nickel coating thicknesses deposited by electro- galvanizing method. Finally, a zinc coating was deposited by electro-galvanizing method. Trial 5 was prepared by deposited a zinc coating by electro-galvanizing method after the continuous annealing of the steel sheet under similar atmosphere.
  • Trials according to the present invention show an excellent resistance to LME as compared to Trial 5. Indeed, the number of cracks of Trials according to the present invention is very low, even nonexistent, compared to Trial 5.
  • three coated steel sheets were also welded together by resistance spot welding. The number of cracks above ⁇ ⁇ was then evaluated using an optical microscope as well as SEM (Scanning Electron Microscopy) as shown in Table 3.
  • Trials according to the present invention show an excellent resistance to as compared to Trial 5.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Resistance Welding (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une tôle d'acier revêtue.
PCT/IB2017/001281 2016-12-21 2017-10-24 Procédé de fabrication d'une tôle d'acier revêtue Ceased WO2018115946A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
KR1020207011272A KR102206933B1 (ko) 2017-10-24 2018-10-19 코팅된 강 시트의 제조 방법, 두 개의 스폿 용접된 금속 시트들 및 이의 용도
CA3076994A CA3076994A1 (fr) 2017-10-24 2018-10-19 Procede de fabrication d'une tole d'acier revetue, deux feuilles metalliques soudees par points et leur utilisation
JP2020522972A JP2021501260A (ja) 2016-12-21 2018-10-19 被覆鋼板の製造方法、スポット溶接された２枚の金属板及びその使用
US16/754,538 US20200340124A1 (en) 2017-10-24 2018-10-19 A method for the manufacture of a coated steel sheet
MX2020004309A MX2020004309A (es) 2016-12-21 2018-10-19 Un metodo para la fabricacion de una hoja de acero cubierta, dos hojas metalicas soldadas por puntos y uso de las mismas.
BR112020006128-0A BR112020006128A2 (pt) 2017-10-24 2018-10-19 método para a fabricação de uma chapa de aço revestida, chapa de aço, junta soldada e uso de uma chapa de aço revestida
RU2020116428A RU2020116428A (ru) 2016-12-21 2018-10-19 Способ изготовления листовой стали с покрытием
CN201880068936.4A CN111279006A (zh) 2017-10-24 2018-10-19 用于制造经涂覆的钢板的方法、两个点焊金属板及其用途
EP18793483.1A EP3701055A1 (fr) 2017-10-24 2018-10-19 Procédé de fabrication d'une tôle d'acier revêtue, deux feuilles métalliques soudées par points et leur utilisation
MA050447A MA50447A (fr) 2017-10-24 2018-10-19 Procédé de fabrication d'une tôle d'acier revêtue, deux feuilles métalliques soudées par points et leur utilisation
PCT/IB2018/058157 WO2019082037A1 (fr) 2017-10-24 2018-10-19 Procédé de fabrication d'une tôle d'acier revêtue, deux feuilles métalliques soudées par points et leur utilisation
ZA2020/01589A ZA202001589B (en) 2017-10-24 2020-03-13 A method for the manufacture of a coated steel sheet, two spot welded metal sheets and use thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IBPCT/IB2016/001795 2016-12-21
IB2016001795 2016-12-21

Publications (1)

Publication Number Publication Date
WO2018115946A1 true WO2018115946A1 (fr) 2018-06-28

Family

ID=57838425

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2017/001281 Ceased WO2018115946A1 (fr) 2016-12-21 2017-10-24 Procédé de fabrication d'une tôle d'acier revêtue

Country Status (4)

Country Link
JP (1) JP2021501260A (fr)
MX (1) MX2020004309A (fr)
RU (1) RU2020116428A (fr)
WO (1) WO2018115946A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020245773A1 (fr) * 2019-06-05 2020-12-10 Arcelormittal Procédé de fabrication d'un assemblage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI896367B (zh) * 2023-10-13 2025-09-01 日商日本製鐵股份有限公司 熔融鍍敷鋼材

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2143816A1 (fr) * 2007-04-11 2010-01-13 Nippon Steel Corporation Tôle d'acier haute résistance galvanisée à chaud pour découpage-poinçonnage présentant une excellente résistance à basse température et son procédé de production
US20120100391A1 (en) 2010-10-21 2012-04-26 Posco Hot-dip galvanized steel sheet having excellent plating qualities, plating adhesion and spot weldability and manufacturing method thereof
WO2014124749A1 (fr) * 2013-02-12 2014-08-21 Tata Steel Ijmuiden Bv Acier revêtu approprié pour une galvanisation à chaud
US20140370330A1 (en) * 2011-12-27 2014-12-18 Nippon Steel & Sumitomo Metal Corporation Hot-dip plated high-strength steel sheet for presswork excellent in low-temperature toughness and corrosion resistance and manufacturing method thereof
EP3088557A1 (fr) * 2013-12-25 2016-11-02 Posco Tôle d'acier galvaniser à chaud ayant une excellent résistance à la fissuration due à la fragilisation par métal liquide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005002415A (ja) * 2003-06-12 2005-01-06 Nippon Steel Corp 溶接性に優れた溶融Ｚｎ系めっき鋼材
JP2016089274A (ja) * 2014-11-04 2016-05-23 株式会社神戸製鋼所 ホットスタンプ用めっき鋼板
JP6108049B2 (ja) * 2015-03-30 2017-04-05 新日鐵住金株式会社 めっき鋼板のスポット溶接方法
EP3309273B1 (fr) * 2015-06-11 2021-05-26 Nippon Steel Corporation Tôle d'acier galvanisée et procédé pour sa fabrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2143816A1 (fr) * 2007-04-11 2010-01-13 Nippon Steel Corporation Tôle d'acier haute résistance galvanisée à chaud pour découpage-poinçonnage présentant une excellente résistance à basse température et son procédé de production
US20120100391A1 (en) 2010-10-21 2012-04-26 Posco Hot-dip galvanized steel sheet having excellent plating qualities, plating adhesion and spot weldability and manufacturing method thereof
US20140370330A1 (en) * 2011-12-27 2014-12-18 Nippon Steel & Sumitomo Metal Corporation Hot-dip plated high-strength steel sheet for presswork excellent in low-temperature toughness and corrosion resistance and manufacturing method thereof
WO2014124749A1 (fr) * 2013-02-12 2014-08-21 Tata Steel Ijmuiden Bv Acier revêtu approprié pour une galvanisation à chaud
EP3088557A1 (fr) * 2013-12-25 2016-11-02 Posco Tôle d'acier galvaniser à chaud ayant une excellent résistance à la fissuration due à la fragilisation par métal liquide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020245773A1 (fr) * 2019-06-05 2020-12-10 Arcelormittal Procédé de fabrication d'un assemblage
WO2020245632A1 (fr) * 2019-06-05 2020-12-10 Arcelormittal Procédé de fabrication d'un ensemble métallique
US12410526B2 (en) 2019-06-05 2025-09-09 Arcelormittal Method for manufacturing an assembly

Also Published As

Publication number Publication date
MX2020004309A (es) 2020-08-13
RU2020116428A (ru) 2021-11-25
JP2021501260A (ja) 2021-01-14
RU2020116428A3 (fr) 2021-11-25

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