EP3392364B1 - Hochharter abriebfester stahl mit hervorragender festigkeit und schneidrissbeständigkeit und verfahren zur herstellung davon - Google Patents

Hochharter abriebfester stahl mit hervorragender festigkeit und schneidrissbeständigkeit und verfahren zur herstellung davon Download PDF

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EP3392364B1
EP3392364B1 EP16875937.1A EP16875937A EP3392364B1 EP 3392364 B1 EP3392364 B1 EP 3392364B1 EP 16875937 A EP16875937 A EP 16875937A EP 3392364 B1 EP3392364 B1 EP 3392364B1
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present
steel
resistant steel
temperature
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French (fr)
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EP3392364A1 (de
EP3392364A4 (de
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Il-Cheol YI
Yong-Jin Kim
Sung-Kyu Kim
Sang-Deok Kang
Un-Hae LEE
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Posco Holdings Inc
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Posco Co Ltd
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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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • 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
    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • 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
    • C21D2211/008—Martensite

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  • 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)

Claims (5)

  1. Verschleißfester Stahl mit hoher Härte:
    mit einer Zusammensetzung, die bezogen auf das Gewichtsverhältnis Folgendes 2,1 bis 4,0 % Mangan (Mn), 0,15 bis 0,2 % Kohlenstoff (C), 0,02 bis 0,5 % Silizium (Si), 0,2 bis 0,7 % Chrom (Cr), wahlweise eines oder mehrere, ausgewählt aus der Gruppe von 0,1 % oder weniger Niob (Nb), 0,02 % oder weniger Bor (B) und 0,1 % oder weniger Titan (Ti), einen Rest Eisen (Fe) und andere unvermeidbare Verunreinigungen enthält;
    mit einer Mikrostruktur, in der eine vorherige Austenit-Korngröße 25 µm oder weniger beträgt und Martensit als Hauptphase enthalten ist; und
    mit ausgezeichneter Zähigkeit und Schnittrissbeständigkeit, die einen Zustand erfüllt, in dem Ac3-Ac1 100 °C oder weniger beträgt.
  2. Verschleißfester Stahl mit hoher Härte nach Anspruch 1, wobei die Martensitstruktur 95 % oder mehr des Flächenanteils umfasst.
  3. Verschleißfester Stahl mit hoher Härte nach Anspruch 1, wobei die Brinell-Härte 420 bis 480 beträgt und die Kerbschlagarbeit nach Charpy 35 J oder mehr bei - 40°C beträgt.
  4. Verschleißfester Stahl mit hoher Härte nach Anspruch 1, wobei der Martensit keine Karbide enthält.
  5. Verfahren zur Herstellung eines verschleißfesten Stahls mit hoher Härte, der eine ausgezeichnete Zähigkeit und Schnittrissbeständigkeit aufweist, umfassend:
    Warmwalzen einer Bramme mit einer Zusammensetzung, die bezogen auf das Gewichtsverhältnis 2,1 bis 4,0 % Mangan (Mn), 0,15 bis 0,2 % Kohlenstoff (C), 0,02 bis 0,5 % Silizium (Si), 0,2 bis 0,7 % Chrom (Cr), wahlweise eines oder mehrere, ausgewählt aus der Gruppe von 0,1 % oder weniger Niob (Nb), 0,02 % oder weniger Bor (B) und 0,1 % oder weniger Titan (Ti), einen Rest Eisen (Fe) und andere unvermeidbare Verunreinigungen enthält, um eine Stahlplatte bereitzustellen,
    Abschrecken der Stahlplatte auf eine Temperatur von 200°C oder weniger mit einer Abkühlungsgeschwindigkeit von 3 °C/s oder höher,
    Wiedererwärmen der abgeschreckten Stahlplatte, bis die Mitte der Stahlplatte eine Temperatur zwischen Ac3 und 960°C erreicht hat, und
    sekundäres Abschrecken der wiedererwärmten Stahlplatte auf eine Temperatur von 200°C oder weniger mit einer Abkühlgeschwindigkeit von 3 °C/s oder höher,
    wobei eine Endtemperatur während des Warmwalzens Ar3 oder höher ist, und wobei eine Austenit-Korngröße der sekundär abzuschreckenden Stahlplatte 25 µm oder weniger beträgt.
EP16875937.1A 2015-12-15 2016-11-22 Hochharter abriebfester stahl mit hervorragender festigkeit und schneidrissbeständigkeit und verfahren zur herstellung davon Active EP3392364B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150179009A KR101736621B1 (ko) 2015-12-15 2015-12-15 인성과 절단균열저항성이 우수한 고경도 내마모강 및 그 제조방법
PCT/KR2016/013491 WO2017104995A1 (ko) 2015-12-15 2016-11-22 인성과 절단균열저항성이 우수한 고경도 내마모강 및 그 제조방법

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EP3392364A1 EP3392364A1 (de) 2018-10-24
EP3392364A4 EP3392364A4 (de) 2018-10-24
EP3392364B1 true EP3392364B1 (de) 2020-07-29

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US (1) US20190010571A1 (de)
EP (1) EP3392364B1 (de)
JP (1) JP6691967B2 (de)
KR (1) KR101736621B1 (de)
CN (1) CN108368589B (de)
WO (1) WO2017104995A1 (de)

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DE102018122901A1 (de) 2018-09-18 2020-03-19 Voestalpine Stahl Gmbh Verfahren zur Herstellung ultrahochfester Stahlbleche und Stahlblech hierfür
JP7319518B2 (ja) * 2019-02-14 2023-08-02 日本製鉄株式会社 耐摩耗厚鋼板
CN112981066B (zh) * 2021-02-07 2022-09-30 松山湖材料实验室 高铬钢的热处理方法及热处理高铬钢

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JPS609824A (ja) * 1983-06-27 1985-01-18 Sumitomo Metal Ind Ltd 強靭鋼の製造方法
JP2004300474A (ja) * 2003-03-28 2004-10-28 Jfe Steel Kk 耐摩耗鋼およびその製造方法
JP4682822B2 (ja) 2004-11-30 2011-05-11 Ｊｆｅスチール株式会社 高強度熱延鋼板
JP4644105B2 (ja) * 2005-11-28 2011-03-02 新日本製鐵株式会社 ベイナイト鋼レールの熱処理方法
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Also Published As

Publication number Publication date
US20190010571A1 (en) 2019-01-10
JP2019504192A (ja) 2019-02-14
CN108368589A (zh) 2018-08-03
EP3392364A1 (de) 2018-10-24
JP6691967B2 (ja) 2020-05-13
WO2017104995A1 (ko) 2017-06-22
CN108368589B (zh) 2020-10-20
EP3392364A4 (de) 2018-10-24
KR101736621B1 (ko) 2017-05-30

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