EP3443135A1 - Martensitic steel having a z-phase, powder and component - Google Patents
Martensitic steel having a z-phase, powder and componentInfo
- 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- Withdrawn
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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016206371.5A DE102016206371A1 (en) | 2016-04-15 | 2016-04-15 | Martensitic steel with Z-phase, powder and component |
PCT/EP2017/056363 WO2017178188A1 (en) | 2016-04-15 | 2017-03-17 | Martensitic steel having a z-phase, powder and component |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3443135A1 true EP3443135A1 (en) | 2019-02-20 |
Family
ID=58347389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17711187.9A Withdrawn EP3443135A1 (en) | 2016-04-15 | 2017-03-17 | Martensitic steel having a z-phase, powder and component |
Country Status (4)
Country | Link |
---|---|
US (1) | US20190169722A1 (en) |
EP (1) | EP3443135A1 (en) |
DE (1) | DE102016206371A1 (en) |
WO (1) | WO2017178188A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH369481A (en) * | 1956-01-11 | 1963-05-31 | Birmingham Small Arms Co Ltd | Process for increasing the creep resistance of chrome steel |
FR2456785A1 (en) * | 1979-05-17 | 1980-12-12 | Daido Steel Co Ltd | DECOLLETING STEEL CONTAINING DETERMINED INCLUSIONS AND A PROCESS FOR THE PREPARATION THEREOF |
EP1329531B8 (en) * | 1997-09-22 | 2007-09-19 | National Research Institute For Metals | Ferritic heat-resistant steel and method for producing it |
JP2000248337A (en) * | 1999-03-02 | 2000-09-12 | Kansai Electric Power Co Inc:The | Method for improving water vapor oxidation resistance of high chromium ferritic heat resistant steel for boiler and high chromium ferritic heat resistant steel for boiler excellent in water vapor oxidation resistance |
JP4509664B2 (en) * | 2003-07-30 | 2010-07-21 | 株式会社東芝 | Steam turbine power generation equipment |
JP5562825B2 (en) * | 2010-12-28 | 2014-07-30 | 株式会社東芝 | Heat-resistant cast steel, method for producing heat-resistant cast steel, cast component for steam turbine, and method for producing cast component for steam turbine |
JP5574953B2 (en) * | 2010-12-28 | 2014-08-20 | 株式会社東芝 | Heat-resistant steel for forging, method for producing heat-resistant steel for forging, forged parts, and method for producing forged parts |
-
2016
- 2016-04-15 DE DE102016206371.5A patent/DE102016206371A1/en not_active Withdrawn
-
2017
- 2017-03-17 US US16/092,462 patent/US20190169722A1/en not_active Abandoned
- 2017-03-17 WO PCT/EP2017/056363 patent/WO2017178188A1/en active Application Filing
- 2017-03-17 EP EP17711187.9A patent/EP3443135A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US20190169722A1 (en) | 2019-06-06 |
DE102016206371A1 (en) | 2017-10-19 |
WO2017178188A1 (en) | 2017-10-19 |
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Legal Events
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