EP3684957A1 - Martensitischer stahl mit z-phase, pulver und bauteil - Google Patents

Martensitischer stahl mit z-phase, pulver und bauteil

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Publication number
EP3684957A1
EP3684957A1 EP18759887.5A EP18759887A EP3684957A1 EP 3684957 A1 EP3684957 A1 EP 3684957A1 EP 18759887 A EP18759887 A EP 18759887A EP 3684957 A1 EP3684957 A1 EP 3684957A1
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EP
European Patent Office
Prior art keywords
powder
alloy
component according
weight
component
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
EP18759887.5A
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English (en)
French (fr)
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EP3684957B1 (de
Inventor
Torsten Neddemeyer
Torsten-Ulf Kern
Karsten Kolk
Axel Bublitz
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.)
Siemens Energy Global GmbH and Co KG
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Siemens AG
Siemens Corp
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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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/009—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine components other than turbine blades
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • 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
    • C22C38/02—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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
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    • 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
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
    • 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
    • C22C38/40—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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—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
    • 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
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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 invention relates to a martensitic steel with Z-phase, powder and a component thereof.
  • forged rotor disks have hitherto been made of various forged steels.
  • a steel based on NiCrMoV for compressor disks and a steel based on CrMoWVNbN are used for the turbine disks.
  • Decisive for the choice of forging material are the conditions of use and the design requirements. For the selection of forging material, there is always one
  • the material with the highest operating temperature is currently a steel based on CrMoWVNbN and a steel on the
  • Base CrMoCoVB Both materials are not suitable in the 800-900MPa Fes ⁇ strength class for use above 773K, or 823K. For higher operating temperatures, nickel materials are currently under discussion. Nonetheless, recent research indicates that iron alloys up to 873K can be used. Unfortunately, the components have the following disadvantages, which is why the use has to be weighed:
  • the object is achieved by an alloy according to claim 1, a powder according to claim 2 and a component or blank according to claim 3.
  • the alloy according to the invention has at least
  • Titanium (Ti) 0, 02% - 0, 10%, preferably 0.04% - 0.08%,
  • An advantageous embodiment is (in% by weight): carbon (C): 0.20%,
  • Application temperature can be increased and therefore allows performance and performance enhancement of the machine without the need for external cooling.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Legierung, zumindest aufweisend (in Gew-%): Kohlenstoff (C): 0,15% - 0,25%, Silizium (Si): 0,0% – 0,08%, Mangan (Mn): 0,03% – 0,20%, Chrom (Cr): 9,5% – 10,5%, Molybdän (Mo): 0,4% – 1,0%, Wolfram (W): 1,6% – 2,4%, Kobalt (Co): 2,5% – 3,5%, Nickel (Ni): 0,0% – 0,40%, Bor (B): 0,003% – 0,02%, Stickstoff (N): 0,0% – 0,40%, Titan (Ti): 0,02% – 0,10%, Vanadium (V): 0,10% – 0,30%, Niob (Nb): 0,02% – 0,08%, Kupfer (Cu): 1,20% - 2,10%, Aluminium (Al): 0,003% - 0,06%, insbesondere 0,005% - 0,04%, Rest Eisen (Fe).

Description

Martensitischer Stahl mit Z-Phase, Pulver und Bauteil
Die Erfindung betrifft einen martensitischen Stahl mit Z- Phase, Pulver und ein Bauteil daraus.
In Korrelation zu Anwendungsbedingungen werden geschmiedete Rotorscheiben bisher aus verschiedenen Schmiedestählen hergestellt. So wird ein Stahl auf der Basis NiCrMoV für Verdich- terscheiben sowie ein Stahl auf der Basis CrMoWVNbN für die Turbinenscheiben verwendet. Ausschlaggebend für die Wahl des Schmiedematerials sind die Anwendungsbedingungen und die Designanforderungen . Für die Auswahl des Schmiedewerkstoffes gilt es immer ein
Gleichgewicht aus Festigkeit und Zähigkeit zu gewährleiten, um die Designanforderungen einzuhalten.
Der Werkstoff mit der höchsten Einsatztemperatur ist aktuell ein Stahl auf der Basis CrMoWVNbN sowie ein Stahl auf der
Basis CrMoCoVB. Beide Werkstoffe sind in der 800-900MPa Fes¬ tigkeitsklasse für einen Einsatz oberhalb 773K bzw. 823K nicht geeignet. Für höhere Einsatztemperaturen sind aktuell Nickelwerkstoffe in Diskussion. Nichtsdestotrotz deuten aktuelle Untersuchungen darauf hin, dass Eisenlegierungen bis 873K genutzt werden können . Leider haben die Bauteile folgende Nachteile, weshalb der Einsatz abzuwägen ist:
- sehr hohe Kosten im Vergleich zur Scheibe aus Stahl,
- neue Bruchmechanikkonzepte müssen entwickelt werden,
- längere Bearbeitungszeiten in der Fertigung. Es ist daher Aufgabe der Erfindung oben genanntes Problem zu lösen .
Die Aufgabe wird gelöst durch eine Legierung gemäß Anspruch 1, ein Pulver gemäß Anspruch 2 und ein Bauteil oder Rohteil gemäß Anspruch 3.
In den Unteransprüchen sind weitere vorteilhafte Maßnahmen aufgelistet, die beliebig miteinander kombiniert werden kön- nen, um weitere Vorteile zu erzielen.
Durch die Bildung der Z-Phase innerhalb des Nutzungszeitraums des Bauteils wurde die Legierungszusammensetzung martensi- tischer Stähle bisher begrenzt.
Die erfindungsgemäße Legierung weist zumindest auf
(in Gew-%) :
Kohlenstoff (C) : 0,15% - 0,25%,
vorzugsweise 0,19% - 0,21%,
Silizium (Si) : 0,0% - 0,08%,
vorzugsweise 0,0% - 0,06%,
Mangan (Mn) : 0,03% - 0,20%,
vorzugsweise 0,05% - 0,15%,
Chrom (Cr) : 9,5% - 10,5%,
vorzugsweise 9,8% - 10,2%,
Molybdän (Mo): 0,4% - 1,0%,
vorzugsweise 0,6% - 0,8%,
Wolfram (W) : 1,6% - 2,4%,
vorzugsweise 1,9% - 2,1%,
Kobalt (Co): 2,5% - 3,5%,
vorzugsweise 2,8% - 3,2%,
Nickel (Ni) : 0,0% - 0,40%,
vorzugsweise 0,0% - 0,20%,
Bor (B) : 0, 003% - 0, 02%,
vorzugsweise 0,006% - 0,01%,
Stickstoff (N) : 0,0% - 0,40%,
vorzugsweise 0,0% - 0,20%,
Titan (Ti) : 0, 02% - 0, 10%, vorzugsweise 0,04% - 0,08%,
Vanadium (V) : 0,10% - 0,30%,
vorzugsweise 0,15% - 0,25%,
Niob (Nb) : 0, 02% - 0,08%,
vorzugsweise - 0,06%,
Kupfer (Cu) : 1,20% - 2,10%,
vorzugsweise 1,65% - 1,85%,
Aluminium (AI) : 0,003% - 0,06%
insbesondere 0,005% - 0,04%,
Rest Eisen (Fe) ,
insbesondere bestehend aus diesen Elementen.
Durch neue Konzepte kann die Grenze verschoben werden:
a) Verschiebung der Bildung der Z-Phase in Richtung 200.000h, b) Bildung der Z-Phase vor Beginn des Nutzungszeitraums des späteren GT-Schmiedebauteils .
In Folge dessen ändern sich die mechanischen Eigenschaften über den Nutzungszeitraum durch die Ausbildung der Z-Phase nicht mehr. Stattdessen sind die Kennwerte durch die Ausbil¬ dung der Z-Phase sehr viel konstanter. Eine Auslegung der Bauteile ist möglich.
Ein vorteilhaftes Ausführungsbeispiel lautet (in Gew.-%): Kohlenstoff (C) : 0,20%,
Silizium (Si) : 0,06%,
Mangan (Mn) : 0,10%,
Chrom (Cr) : 10%,
Molybdän (Mo) : 0,7%,
Wolfram (W) : 2,0%,
Kobalt (Co) : 3, 0%,
Nickel (Ni) : 0,0%,
Bor (B) : 0, 010%,
Stickstoff (N) : 0, 0%,
Titan (Ti) : 0, 05%,
Vanadium (V) : 0,20%,
Niob (Nb) : 0, 05%,
Kupfer (Cu) : 1,75%, Aluminium (AI): 0,02%,
Rest Eisen (Fe) .
Neben der Anwendung als Schmiedescheibe in der Gasturbine sind weitere Anwendungen denkbar, wie z.B. Gasturbinenver- dichterschaufein, Dampfturbinenschaufel oder als Dampf- turbinenschmiedeteil .
Die Vorteile sind:
Erweiterung des Einsatzbereiches „preiswerter" Eisenbasislegierungen im Vergleich zu „teuren Nickelbasiswerkstoffen" , - schnellere Bearbeitbarkeit der Rotorbauteile auf Eisen¬ basis (9% - 11% Cr) im Vergleich zu Nickelbasiswerkstof¬ fen,
Erfahrungen aus der Konstruktion, Fertigung und Herstel- lung der hochlegierten Eisenbasislegierungen können größtenteils übernommen werden; Das hilft z.B. bei allen probabilistischen Ansätzen (z.B. Bruchmechanik => minimiertes Risiko) ,
Anwendungstemperatur kann erhöht werden und ermöglicht daher Leistungs- und Performancesteigerung der Maschine, ohne dass externe Kühlung notwendig ist.

Claims

Patentansprüche
1. Legierung,
zumindest aufweisend (in Gew-%) :
Kohlenstoff (C) : 0,15% - 0,25%,
vorzugsweise 0,19% - 0,21%,
Silizium (Si) : 0,0% - 0,08%,
vorzugsweise 0,0% - 0,06%,
Mangan (Mn) : 0,03% - 0,20%,
vorzugsweise 0,05% - 0,15%,
Chrom (Cr) : 9,5% - 10,5%,
vorzugsweise 9,8% - 10,2%,
Molybdän (Mo): 0,4% - 1,0%,
vorzugsweise 0,6% - 0,8%,
Wolfram (W) : 1,6% - 2,4%,
vorzugsweise 1,9% - 2,1%,
Kobalt (Co) : 2,5% - 3,5%,
vorzugsweise 2,8% - 3,2%,
Nickel (Ni) : 0,0% - 0,40%,
vorzugsweise 0,0% - 0,20%,
Bor (B) : 0, 003% - 0, 02%,
vorzugsweise 0,006% - 0,01%,
Stickstoff (N) : 0,0% - 0,40%,
vorzugsweise 0,0% - 0,20%,
Titan (Ti) : 0, 02% - 0, 10%,
vorzugsweise 0,04% - 0,08%,
Vanadium (V): 0,10% - 0,30%,
vorzugsweise 0,15% - 0,25%,
Niob (Nb) : 0,02% - 0,08%,
vorzugsweise 0,04% - 0,06%,
Kupfer (Cu) : 1,20% - 2,10%,
vorzugsweise 1,65% - 1,85%,
Aluminium (AI): 0,003% - 0,06%,
insbesondere 0,005% - 0,04%,
Rest Eisen (Fe) ,
insbesondere bestehend aus diesen Elementen.
2. Pulver,
aufweisend eine Legierung nach Anspruch 1,
insbesondere bestehend aus dieser Legierung.
3. Bauteil oder Rohteil,
zumindest aufweisend eine Legierung nach Anspruch 1 oder hergestellt aus einem Pulver gemäß Anspruch 2,
insbesondere bestehend aus einer Legierung nach Anspruch 1.
4. Legierung, Pulver oder Bauteil nach einem oder mehreren der Ansprüche 1, 2 oder 3,
enthaltend 0,2 Gew.-% Kohlenstoff (C) .
5. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,06 Gew.-% Silizium (Si) .
6. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,1 Gew.-% Mangan (Mn) .
7. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 10,00 Gew.-% Chrom (Cr).
8. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,7 Gew.-% Molybdän (Mo).
9. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 2,0 Gew.-% Wolfram (W) .
10. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 3,0 Gew.-% Kobalt (Co).
11. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,0 Gew.-% Nickel (Ni) , bis auf
Verunreinigungslevel .
12. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,010 Gew.-% Bor (B) .
13. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,0 Gew.-% Stickstoff (N) , bis auf
Verunreinigungslevel.
14. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,05 Gew.-% Titan (Ti) .
15. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,20 Gew.-% Vanadium (V).
16. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,05 Gew.-% Niob (Nb) .
17. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 1,75 Gew.-% Kupfer (Cu) .
18. Legierung, Pulver oder Bauteil nach einem oder mehreren der vorherigen Ansprüche,
enthaltend 0,02 Gew.-% Aluminium (AI).
EP18759887.5A 2017-09-18 2018-08-16 Martensitischer stahl mit z-phase, pulver und bauteil Active EP3684957B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017216461.1A DE102017216461A1 (de) 2017-09-18 2017-09-18 Martensitischer Stahl mit Z-Phase, Pulver und Bauteil
PCT/EP2018/072190 WO2019052766A1 (de) 2017-09-18 2018-08-16 Martensitischer stahl mit z-phase, pulver und bauteil

Publications (2)

Publication Number Publication Date
EP3684957A1 true EP3684957A1 (de) 2020-07-29
EP3684957B1 EP3684957B1 (de) 2023-10-04

Family

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US (1) US11492686B2 (de)
EP (1) EP3684957B1 (de)
CN (1) CN111133120A (de)
DE (1) DE102017216461A1 (de)
WO (1) WO2019052766A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020213394A1 (de) * 2020-10-23 2022-04-28 Siemens Energy Global GmbH & Co. KG Martensitischer Stahl mit Z-Phase, Pulver sowie Rohteil oder Bauteil

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456785A1 (fr) * 1979-05-17 1980-12-12 Daido Steel Co Ltd Acier de decolletage contenant des inclusions determinees et un procede de sa preparation
JP3508667B2 (ja) * 2000-01-13 2004-03-22 住友金属工業株式会社 高温強度に優れた高Ｃｒフェライト系耐熱鋼およびその製造方法
JP2001279391A (ja) * 2000-03-30 2001-10-10 Sumitomo Metal Ind Ltd フェライト系耐熱鋼
KR20090038016A (ko) * 2006-08-23 2009-04-17 도꾸리쯔교세이호징 가가꾸 기쥬쯔 신꼬 기꼬 Ｆｅ기 합금 및 그 제조 방법
JP4995122B2 (ja) * 2007-03-02 2012-08-08 新日本製鐵株式会社 溶接熱影響部のクリープ特性に優れたフェライト系耐熱鋼材及び耐熱構造体
DE102007025758A1 (de) * 2007-06-01 2008-12-04 Mahle International Gmbh Dichtring
JP5046398B2 (ja) * 2008-12-17 2012-10-10 株式会社日本製鋼所 高窒素マルテンサイト系ステンレス鋼
JP5574953B2 (ja) * 2010-12-28 2014-08-20 株式会社東芝 鍛造用耐熱鋼、鍛造用耐熱鋼の製造方法、鍛造部品および鍛造部品の製造方法

Also Published As

Publication number Publication date
US20200208245A1 (en) 2020-07-02
DE102017216461A1 (de) 2019-03-21
CN111133120A (zh) 2020-05-08
WO2019052766A1 (de) 2019-03-21
US11492686B2 (en) 2022-11-08
EP3684957B1 (de) 2023-10-04

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