EP3074544B1 - Martensitischer rostfreier stahl, teil aus diesem stahl und verfahren zur herstellung davon - Google Patents

Martensitischer rostfreier stahl, teil aus diesem stahl und verfahren zur herstellung davon Download PDF

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EP3074544B1
EP3074544B1 EP14802886.3A EP14802886A EP3074544B1 EP 3074544 B1 EP3074544 B1 EP 3074544B1 EP 14802886 A EP14802886 A EP 14802886A EP 3074544 B1 EP3074544 B1 EP 3074544B1
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steel
semi
finished product
quenching
trace amounts
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EP3074544B8 (de
EP3074544A1 (de
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Sylvain Pierre PUECH
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Aubert and Duval SA
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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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • 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
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    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
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    • C21—METALLURGY OF IRON
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    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and 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
    • C21D6/007—Heat treatment of ferrous alloys containing Co
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation
    • 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
    • C21D6/04—Hardening by cooling below 0 degrees Celsius
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • 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
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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
    • C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
    • 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
    • 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
    • C22C38/06—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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

Definitions

  • the quenching can be carried out in two stages, in two different quenching media.
  • the holding time in the cryogenic medium must be sufficient for the cooling at the chosen temperature and the desired transformations affect the steel piece in all its volume. This time therefore strongly depends on the mass and dimensions of the treated part, and is, of course, even higher than, for example, the treated part is thick.
  • Different quenching media can be used: air, water, oil, gas, polymer, liquid nitrogen, dry ice (non-limiting list), and quenching is not necessarily carried out with a very high cooling rate.
  • the P content is at most 0.040% (400 ppm), preferably at most 0.020% (200 ppm) to better ensure the good compromise between Rm and K1C sought. This is again a residual element that tends to segregate at the grain boundaries and therefore decreases toughness.
  • the Cr content is between 8 and 14%, preferably between 8.5 and 10%. It is the main element that provides resistance to corrosion, which justifies the lower limit of 8%. But its content must be limited to 14% so that it does not contribute to the stabilization of delta ferrite and does not cause Ms, calculated according to equation (1), to pass below 50 ° C.
  • O must be at most 0.020% (200 ppm), preferably 0.0050% (50 ppm) to better ensure the right compromise between Rm and K1C sought. It is also unfavorable to ductility, and the oxidized inclusions it forms are also potential sites for crack initiation in fatigue.
  • the O content must be chosen according to the criteria common to those skilled in the art, depending on the precise mechanical characteristics required for the final product.
  • Sample 11 has a high Ms and a high Rm.
  • the equilibrium between Rm and K1C is better than for sample 8 because of a better balance between the contents of Ni and Cr.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Claims (10)

  1. Martensitischer rostfreier Stahl, dadurch gekennzeichnet, dass seine Zusammensetzung in Gewichtsprozent ist:
    - Spuren ≤ C ≤ 0,030%, bevorzugt ≤ 0,010%,
    - Spuren ≤ Si ≤ 0,25%, bevorzugt ≤ 0,10%,
    - Spuren ≤ Mn ≤ 0,25%, bevorzugt ≤ 0,10%,
    - Spuren ≤ S ≤ 0,020%, bevorzugt ≤ 0,005%,
    - Spuren ≤ P ≤ 0,040%, bevorzugt ≤ 0,020%,
    - 8% ≤ Ni ≤ 14%, bevorzugt 11,3% ≤ Ni ≤ 12,5%,
    - 8% ≤ Cr ≤ 14%, bevorzugt 8,5% ≤ Cr ≤ 10%,
    - 1,5% ≤ Mo + W/2 ≤ 3,0%, bevorzugt 1,5 ≤ Mo + W/2 ≤ 2,5%,
    - 1,05% ≤ Al ≤ 2,0%,
    - 0,5% ≤ Ti ≤ 2,0%, bevorzugt 1,10% ≤ Ti ≤ 1,55%,
    - 2% ≤ Co ≤ 9%, bevorzugt 2,5% ≤ Co ≤ 6,5%, besser zwischen 2,50 und 3,50%,
    - Spuren ≤ N ≤ 0,030%, bevorzugt ≤ 0,0060%,
    - Spuren ≤ O ≤ 0,020%, bevorzugt ≤ 0,0050%,
    wobei der Rest Eisen und Verunreinigungen sind, die aus der Erstellung resultieren,
    und dass seine Temperatur am Anfang der Martensitumwandlung Ms, die berechnet wird mittels der Formel Ms ° C = 1302 − 28 ⁢ Si − 50 ⁢ Mn − 63 ⁢ Ni − 42 ⁢ Cr − 30 ⁢ Mo + 20 ⁢ Al − 12 ⁢ Co − 25 ⁢ Cu + 10 Ti − 4 C + N ,
    Figure imgb0010
     wobei die Gehalte der unterschiedlichen Elemente in Gewichtsprozent ausgedrückt sind, größer oder gleich 50°C, bevorzugt größer oder gleich 75°C, ist,
    und dass Creq/Nieq ≤ 1,05, mit Cr eq = Cr + 2 ⁢ Si + Mo + 1,5 ⁢ Ti + 5,5 ⁢ Al + 0,6 ⁢ W
    Figure imgb0011
     Ni eq = 2 ⁢ Ni + 0,5 ⁢ Mn + 30 ⁢ C + 25 ⁢ N + Co + 0,3 ⁢ Cu ,
    Figure imgb0012
     und dass der Anteil an Delta-Ferrit in seiner Mikrostruktur kleiner oder gleich 1% ist.
  2. Martensitischer nichtrostender Stahl gemäß Anspruch 1, dadurch gekennzeichnet, dass 1,05% ≤ Al ≤ 1,5%.
  3. Verfahren zur Herstellung eines Bauteils aus martensitischem rostfreiem Stahl, dadurch gekennzeichnet, dass:
    - man ein Halbzeug aus Stahl erstellt, der die Zusammensetzung gemäß Anspruch 1 oder 2 hat, durch einen der nachfolgenden Prozesse:
    * man erstellt einen flüssigen Stahl, der die Zusammensetzung gemäß Anspruch 1 oder 2 hat, und man gießt und man verfestigt, ausgehend von diesem flüssigen Stahl, einen Barren und man formt diesen um in ein Halbzeug mittels wenigstens einer Warmumformung,
    * man erstellt ein gesintertes Halbzeug durch PulverMetallurgie aus einem Stahl, der die Zusammensetzung gemäß Anspruch 1 oder 2 hat,
    - man realisiert ein komplettes in-Lösung-Bringen des Halbzeugs im austenitischen Bereich bei einer Temperatur, die zwischen 800 und 940°C liegt,
    - man realisiert ein Härten des Halbzeugs bis auf eine Härten-Endtemperatur von kleiner oder gleich -60°C, bevorzugt kleiner oder gleich -75°C,
    - man realisiert ein Vergüten zwischen 450 und 600°C während 4 bis 32h.
  4. Verfahren gemäß Anspruch 3, dadurch gekennzeichnet, dass man einen Barren gießt und verfestigt, und dass man, zwischen dem Verfestigen des Barrens und dem in-Lösung-Bringen des Halbzeugs, eine Homogenisierung des Barrens oder des Halbzeugs bei 1200-1300°C realisiert während 24h.
  5. Verfahren gemäß Anspruch 3 oder 4, dadurch gekennzeichnet, dass man zwischen dem Härten und dem Vergüten ein Kaltumformen des Halbzeugs realisiert.
  6. Verfahren gemäß einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass das Härten realisiert wird in Schritten in zwei unterschiedlichen Härten-Milieus.
  7. Verfahren gemäß Anspruch 6, dadurch gekennzeichnet, dass der erste Härten-Schritt in Wasser durchgeführt wird.
  8. Verfahren gemäß einem der Ansprüche 3-7, dadurch gekennzeichnet, dass man den flüssigen Stahl erstellt durch eine Doppelbehandlung durch Schmelzen unter Vakuum, wobei die zweite Behandlung unter Vakuum eine ESR oder VAR Umschmelzbehandlung ist.
  9. Bauteil aus martensitischem rostfreiem Stahl, dadurch gekennzeichnet, dass es erstellt worden ist durch das Verfahren gemäß einem der Ansprüche 3 bis 8.
  10. Bauteil aus martensitischem rostfreiem Stahl gemäß Anspruch 9, dadurch gekennzeichnet, dass es sich um ein Luftfahrt-Strukturbauteil handelt.
EP14802886.3A 2013-11-25 2014-11-25 Martensitischer rostfreier stahl, teil aus diesem stahl und verfahren zur herstellung davon Active EP3074544B8 (de)

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PL14802886T PL3074544T3 (pl) 2013-11-25 2014-11-25 Nierdzewna stal martenzytyczna, element wykonany z tej stali i sposób jego wytwarzania

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FR1361598A FR3013738B1 (fr) 2013-11-25 2013-11-25 Acier inoxydable martensitique, piece realisee en cet acier et son procede de fabrication
PCT/EP2014/075534 WO2015075262A1 (fr) 2013-11-25 2014-11-25 Acier inoxydable martensitique, pièce réalisée en cet acier et son procédé de fabrication

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CN112195418B (zh) * 2020-09-29 2022-03-18 中国科学院金属研究所 一种微纳米晶马氏体时效不锈钢及其制备方法
CN113604753B (zh) * 2021-06-22 2022-06-17 北京科技大学 一种2600MPa级超高强度钢及其制备方法
CN113774288A (zh) * 2021-08-25 2021-12-10 哈尔滨工程大学 一种超高强高性能中厚板马氏体时效不锈钢及其制备方法
CN113774281A (zh) * 2021-08-25 2021-12-10 哈尔滨工程大学 一种2000MPa级高塑韧性高耐蚀马氏体时效不锈钢及其制备方法
CN113981328B (zh) * 2021-09-18 2022-05-24 四川大学 表面自发连续生成三氧化二铝膜的含铝奥氏体不锈钢及其制备方法
CN115261745A (zh) * 2022-06-30 2022-11-01 河钢股份有限公司 一种高强度马氏体时效不锈钢及其制备方法
CN115233115B (zh) * 2022-07-21 2023-05-16 江苏康瑞新材料科技股份有限公司 一种冷镦辐条用不锈钢丝及其制备方法
CN116024496B (zh) * 2022-12-22 2024-12-06 敦化市拜特科技有限公司 不锈钢带及其制造方法
CN116970878B (zh) * 2023-08-07 2025-04-25 浙江全鼎磁电材料有限公司 高韧性高强度马氏体不锈钢、钢结构件及其制备方法与应用
CN117778900A (zh) * 2023-12-28 2024-03-29 上海应用技术大学 一种低成本超低碳高强度马氏体钢及其制备方法

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EP3074544B8 (de) 2020-03-11
JP6207761B2 (ja) 2017-10-04
CA2930140A1 (fr) 2015-05-28
JP2017503083A (ja) 2017-01-26
EP3074544A1 (de) 2016-10-05
ES2763971T3 (es) 2020-06-01
DK3074544T3 (da) 2020-01-20
WO2015075262A1 (fr) 2015-05-28
CN105765087B (zh) 2018-06-01
RU2016119955A (ru) 2017-12-29
FR3013738B1 (fr) 2016-10-14
MX2016006766A (es) 2016-09-08
CN105765087A (zh) 2016-07-13
CA2930140C (fr) 2022-04-19
US20160289805A1 (en) 2016-10-06
FR3013738A1 (fr) 2015-05-29
PL3074544T3 (pl) 2020-05-18

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