EP3443135A1 - Acier martensitique à phase z, poudre et élément - Google Patents

Acier martensitique à phase z, poudre et élément

Info

Publication number
EP3443135A1
EP3443135A1 EP17711187.9A EP17711187A EP3443135A1 EP 3443135 A1 EP3443135 A1 EP 3443135A1 EP 17711187 A EP17711187 A EP 17711187A EP 3443135 A1 EP3443135 A1 EP 3443135A1
Authority
EP
European Patent Office
Prior art keywords
powder
alloy
component
titanium
nitrogen
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.)
Withdrawn
Application number
EP17711187.9A
Other languages
German (de)
English (en)
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 AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP3443135A1 publication Critical patent/EP3443135A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with 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
    • C22C38/18—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

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.
  • the main reason for the choice of the forged material, the conditions of use and the de ⁇ sign requirements are.
  • the material with the highest operating temperature is currently a steel based on CrMoWVNbN and a steel based on 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Powder Metallurgy (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne un acier composé de carbone (C) : 0,08 % – 0,12 %, de préférence 0,10%, de silicium (Si) : 0,04 % – 0,08 %, de manganèse (Mn) : 0,08 % – 0,012 %, de chrome (Cr) : 9% – 11%, de molybdène (Mo) : 0,4 % – 1,0 %, de tungstène (W) : 1,6 % – 2,4 %, de cobalt (Co) : 2,5 % – 3,5 %, de nickel (Ni) : 0,10 % – 0,24 %, de bore (B) : 0,006 % – 0,01 %, d'azote (N) : 0,002 % – 0,01 %, de titane (Ti) : 0,008 % – 0,03 %, de vanadium (V) : 0,015 % – 0,029 %, de niobium (Nb) : 0,03 % – 0,07 %, eventuellement de cuivre (Cu) : 1,00 % - 2,5 %, d'aluminium (Al) : 0,04 % - 0,10 %, le reste étant constitué par du fer (Fe), lequel acier présente des propriétés améliorées du fait que la phase Z ne se développe pas davantage.
EP17711187.9A 2016-04-15 2017-03-17 Acier martensitique à phase z, poudre et élément Withdrawn EP3443135A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016206371.5A DE102016206371A1 (de) 2016-04-15 2016-04-15 Martensitischer Stahl mit Z-Phase, Pulver und Bauteil
PCT/EP2017/056363 WO2017178188A1 (fr) 2016-04-15 2017-03-17 Acier martensitique à phase z, poudre et élément

Publications (1)

Publication Number Publication Date
EP3443135A1 true EP3443135A1 (fr) 2019-02-20

Family

ID=58347389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17711187.9A Withdrawn EP3443135A1 (fr) 2016-04-15 2017-03-17 Acier martensitique à phase z, poudre et élément

Country Status (4)

Country Link
US (1) US20190169722A1 (fr)
EP (1) EP3443135A1 (fr)
DE (1) DE102016206371A1 (fr)
WO (1) WO2017178188A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH369481A (de) * 1956-01-11 1963-05-31 Birmingham Small Arms Co Ltd Verfahren zur Erhöhung der Kriechfestigkeit von Chromstahl
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
US20020011285A1 (en) * 1997-09-22 2002-01-31 Nobuyuki Fujitsuna Ferritic heat-resistant steel and method for producing it
JP2000248337A (ja) * 1999-03-02 2000-09-12 Kansai Electric Power Co Inc:The ボイラ用高Ｃｒフェライト系耐熱鋼の耐水蒸気酸化特性改善方法および耐水蒸気酸化特性に優れたボイラ用高Ｃｒフェライト系耐熱鋼
JP4509664B2 (ja) * 2003-07-30 2010-07-21 株式会社東芝 蒸気タービン発電設備
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
JP5562825B2 (ja) * 2010-12-28 2014-07-30 株式会社東芝 耐熱鋳鋼、耐熱鋳鋼の製造方法、蒸気タービンの鋳造部品および蒸気タービンの鋳造部品の製造方法

Also Published As

Publication number Publication date
WO2017178188A1 (fr) 2017-10-19
DE102016206371A1 (de) 2017-10-19
US20190169722A1 (en) 2019-06-06

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