EP4208579A1 - Alloy, raw workpiece, component consisting of austenite, and method for heat-treating an austenite - Google Patents
Alloy, raw workpiece, component consisting of austenite, and method for heat-treating an austeniteInfo
- Publication number
- EP4208579A1 EP4208579A1 EP21773010.0A EP21773010A EP4208579A1 EP 4208579 A1 EP4208579 A1 EP 4208579A1 EP 21773010 A EP21773010 A EP 21773010A EP 4208579 A1 EP4208579 A1 EP 4208579A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aging
- alloy
- weight
- austenite
- blank
- 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.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 21
- 239000000956 alloy Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910001566 austenite Inorganic materials 0.000 title claims abstract description 8
- -1 raw workpiece Substances 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 230000032683 aging Effects 0.000 claims description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 239000010936 titanium Substances 0.000 claims description 14
- 238000000137 annealing Methods 0.000 claims description 12
- 239000011572 manganese Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 8
- 239000010955 niobium Substances 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052787 antimony Inorganic materials 0.000 claims description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052785 arsenic Inorganic materials 0.000 claims description 4
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims 3
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005242 forging Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C21D1/26—Methods of annealing
-
- 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
- C21D6/004—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
- C21D6/02—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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment 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
- 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
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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
- C22C38/06—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
- 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
- C22C38/54—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
- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Definitions
- the invention relates to an austenite alloy, a blank which is produced in particular by forging and is suitable for components in high-temperature applications, and a method.
- forged disks for rotors of turbines in particular of gas turbines, have hitherto been produced from different forged steels.
- NiCrMoV is used for compressor disks or CrMoWVNbN for turbine disks.
- the A286 standard alloy has long been evaluated for use in steam turbine blades. It was shown that the material A286 standard itself has a potential for use up to 923K.
- Annealing annealing [AN] and various aging as heat treatments (aging [AG]) for austenite in general and specifically for the subject of the alloy according to the invention:
- the first solution annealing is at 1253K, the first aging at 1033K and the second aging at 993K;
- the first solution annealing is at 1253K, the first aging at 993K and the second aging at 1033K and the third aging at 953KC,
- the first solution annealing is at 1253K, the first aging at 1033K, the second aging at 993K and the third aging at 953K,
- the first solution anneal is at 1293K, the first aging at 1033K and the second aging at 923K.
- Austenitic steel has the following composition:
- a blank is cast from such an alloy according to the prior art and forged according to the prior art.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Alloy, raw workpiece, component consisting of austenite, and method. The new alloy allows austenites to be used at higher temperatures, with new heat treatments also being used.
Description
Beschreibung description
LEGIERUNG, ROHTEIL, BAUTEIL AUS AUSTENIT SOWIE EIN VERFAHREN ZUR WÄRMEBEHANDLUNG EINES AUSTENITS ALLOY, BLANK, COMPONENT MADE OF AUSTENITE, AND PROCESS FOR HEAT TREATMENT OF AN AUSTENITE
Die Erfindung betri f ft eine Legierung eines Austenits , ein Rohteil , das insbesondere durch Schmiedung hergestellt wird und für Bauteile in Hochtemperaturanwendungen geeignet ist sowie ein Verfahren . The invention relates to an austenite alloy, a blank which is produced in particular by forging and is suitable for components in high-temperature applications, and a method.
Je nach Anwendungsbedingung werden Schmiedescheiben für Rotoren von Turbinen, insbesondere von Gasturbinen, bisher aus verschiedenen Schmiedestählen hergestellt . So wird NiCrMoV für Verdichterscheiben oder CrMoWVNbN für die Turbinenscheiben verwendet . Depending on the application conditions, forged disks for rotors of turbines, in particular of gas turbines, have hitherto been produced from different forged steels. For example, NiCrMoV is used for compressor disks or CrMoWVNbN for turbine disks.
Ausschlaggebend für die Wahl des Schmiedematerials sind die Anwendungsbedingungen und die Designanforderungen . The application conditions and design requirements are decisive for the choice of forging material.
Für die Auswahl des Schmiedewerkstof fes gilt es immer ein Gleichgewicht aus Festigkeit und Zähigkeit zu gewährleiten, um die Designanforderungen einzuhalten . When selecting forging material, there is always a balance of strength and toughness to meet design requirements.
Für höhere Einsat ztemperaturen gibt es aktuell keine Lösung mit Austenitstählen . There is currently no solution with austenitic steels for higher operating temperatures.
Aktuell wird überlegt auf Nickelscheiben überzugehen . Mit diesen sollten Einsat ztemperaturen >923K möglich sein . It is currently being considered to switch to nickel discs. With these, operating temperatures >923K should be possible.
Leider haben solche Bauteile folgende Nachteile , nämlich :Unfortunately, such components have the following disadvantages, namely:
- sehr hohe Kosten im Vergleich zur Scheibe aus Stahl , - very high cost compared to the steel disc,
- längere Bearbeitungs zeiten in der Fertigung . - Longer processing times in production.
Es ist daher Aufgabe der Erfindung oben genanntes Problem zu lösen . It is therefore the object of the invention to solve the above-mentioned problem.
Die Aufgabe wird gelöst durch eine Legierung gemäß Anspruch 1 , ein Rohteil gemäß Anspruch 2 und ein Bauteil gemäß Anspruch 3 und ein Verfahren nach Anspruch 9 .
In den Unteransprüchen sind weitere vorteilhafte Maßnahmen aufgelistet , die beliebig miteinander kombiniert werden können . The object is achieved by an alloy according to claim 1 , a blank according to claim 2 and a component according to claim 3 and a method according to claim 9 . Further advantageous measures which can be combined with one another as desired are listed in the dependent claims.
Die A286-Standard-Legierung wurde bei der Dampfturbine zur Verwendung für Schaufeln seit langem evaluiert . Dabei zeigte sich, dass der Werkstof f A286-Standard an sich ein Einsatzpotential bis 923K aufweist . The A286 standard alloy has long been evaluated for use in steam turbine blades. It was shown that the material A286 standard itself has a potential for use up to 923K.
Leider ist aber die Festigkeit zu gering . Unfortunately, however, the strength is too low.
Neuere Überlegungen zeigen, dass durch eine Adaptierung der Chemie , insbesondere durch eine Erhöhung des Mangananteils (Mn) , des Titangehalts ( Ti ) und/oder Molybdängehalts sowie Reduktion des Sili ziumanteils ( Si ) die benötigte Festigkeit möglich ist . Recent considerations show that the required strength is possible by adapting the chemistry, in particular by increasing the manganese content (Mn), the titanium content (Ti) and/or molybdenum content and reducing the silicon content (Si).
Mit dem Rohteil werden unterschiedliche Wärmebehandlungen durchgeführt , mit Bezug zum Festigkeits-Zähigkeitsgleichgewicht und der Kerbempfindlichkeit . Various heat treatments are carried out on the blank, with reference to the strength-toughness balance and notch sensitivity.
Folgende Wärmebehandlungen (HT ) werden erfindungsgemäß durchgeführt : The following heat treatments (HT) are carried out according to the invention:
Glühen = Annealing [AN] sowie verschiedene Auslagerungen als Wärmebehandlungen (Aging [AG] ) für Austenite im Allgemeinen und speziell für den Gegenstand der erfindungsgemäßen Legierung : Annealing = annealing [AN] and various aging as heat treatments (aging [AG]) for austenite in general and specifically for the subject of the alloy according to the invention:
Nr . AN 1 . AG 2 . AG 3 . AG No . ON 1 . AG 2 . AG 3 . Inc
1 1253K 993K 1 1253K 993K
2 1253K 993K 953K 2 1253K 993K 953K
3 1253K 1033K 993K 3 1253K 1033K 993K
4 1253K 993K 1033K 953K 4 1253K 993K 1033K 953K
5 1253K 1033K 993K 953K 5 1253K 1033K 993K 953K
6 1293K 1033K 923K
Als Wärmebehandlung stehen folgende Varianten zur Verfügung : 6 1293K 1033K 923K The following variants are available for heat treatment:
• Lösungslösung bei 1253K und bei nur einer Auslagerung bei 993K; • Solution solution at 1253K and with only one swap at 993K;
• bei der zweiten Variante ausgehend von der ersten Variante liegt zusätzlich eine zweite Auslagerung bei 953K; • In the second variant based on the first variant, there is an additional second outsourcing at 953K;
• bei der dritten Variante liegt die erste Lösungsglühung bei 1253K, die erste Auslagerung bei 1033K und die zweite Auslagerung bei 993K; • in the third variant, the first solution annealing is at 1253K, the first aging at 1033K and the second aging at 993K;
• bei der vierten Variante liegt die erste Lösungsglühung bei 1253K, die erste Auslagerung bei 993K und die zweite Auslagerung bei 1033K und die dritte Auslagerung bei 953KC, • in the fourth variant, the first solution annealing is at 1253K, the first aging at 993K and the second aging at 1033K and the third aging at 953KC,
• bei der fünften Variante liegt die erste Lösungsglühung bei 1253K, die erste Auslagerung bei 1033K, die zweite Auslagerung bei 993K und die dritte Auslagerung bei 953K, • in the fifth variant, the first solution annealing is at 1253K, the first aging at 1033K, the second aging at 993K and the third aging at 953K,
• bei der sechsten Variante liegt die erste Lösungsglühung bei 1293K, die erste Auslagerung bei 1033K und die zweite Auslagerung bei 923K . • In the sixth variant, the first solution anneal is at 1293K, the first aging at 1033K and the second aging at 923K.
Neben der Anwendung als Schmiedescheibe in der Gasturbine sind weitere Anwendungen denkbar, dazu zählen : In addition to use as a forged disk in gas turbines, other applications are conceivable, including:
- Gasturbinenschaufel , - gas turbine blade ,
- Gasturbinenringe , - gas turbine rings ,
- Dampfturbinenschaufel oder - steam turbine blade or
- als Dampfturbinenschmiedeteil . - as a steam turbine forging.
Die Vorteile sind : The advantages are :
- Erweiterung des Einsatzbereiches preiswerter Eisenbasislegierungen im Vergleich zu teuren Nickelbasiswerkstof fen- Extension of the area of application of inexpensive iron-based alloys compared to expensive nickel-based materials
- schnellere Bearbeitbarkeit der Rotorbauteile auf Eisenbasis im Vergleich zu Nickelbasiswerkstof fen - Faster machinability of iron-based rotor components compared to nickel-based materials
- Erfahrungen aus der Konstruktion, Fertigung und Herstellung der hochlegierten Eisenbasislegierungen können größtenteils übernommen werden . Das hil ft bei allen probabilistischen Ansätzen
- Anwendungstemperatur kann erhöht werden und ermöglicht daher Leistungs- und Perf ormancesteigerung der Maschine, ohne dass externe Kühlung notwendig ist. - Experiences from the design, manufacture and manufacture of high-alloy iron-based alloys can largely be adopted. This helps with all probabilistic approaches - Application temperature can be increased and therefore increases the power and performance of the machine without the need for external cooling.
Folgende Zusammensetzung hat der austenitische Stahl: Austenitic steel has the following composition:
Legierung aufweisend, insbesondere bestehend aus (in Gew.%) : Having an alloy, in particular consisting of (in % by weight):
Kohlenstoff (C) 0, 03% 0, 08% Silizium (Si) 0,20% 0,40% Mangan (Mn) 1, 60% 2, 00% Chrom (Cr) 13,5% 16, 0% Molybdän (Mo) 2, 00% 2,50% Nickel (Ni) 24, 0% 27, 0% Vanadium (V) 0,25% 0,35% Aluminium (Al) 0,40% 0, 60% Titan (Ti) 2, 00% 2,30% Niob (Nb) 1, 00% 1,20% Wolfram (W) 1, 80% 2,20% Bor (B) 0, 004% 0, 006% optional Phosphor (P) bis 0, 025% Schwefel (S) bis 0, 015% Arsen (As) bis 0, 008% Zinn (Sn) bis 0, 008% Antimon (Sb) bis 0, 002% Stickstoff (N) bis 0, 005% Rest Eisen. Carbon (C) 0.03% 0.08% Silicon (Si) 0.20% 0.40% Manganese (Mn) 1.60% 2.00% Chromium (Cr) 13.5% 16.0% Molybdenum ( Mo) 2.00% 2.50% Nickel (Ni) 24.0% 27.0% Vanadium (V) 0.25% 0.35% Aluminum (Al) 0.40% 0.60% Titanium (Ti) 2.00% 2.30% Niobium (Nb) 1.00% 1.20% Tungsten (W) 1.80% 2.20% Boron (B) 0.004% 0.006% optional Phosphorus (P) bis 0.025% sulfur (S) to 0.015% arsenic (As) to 0.008% tin (Sn) to 0.008% antimony (Sb) to 0.002% nitrogen (N) to 0.005% remainder Iron.
Aus einer solchen Legierung wird ein Rohteil nach dem Stand der Technik gegossen und nach dem Stand der Technik geschmiedet .
A blank is cast from such an alloy according to the prior art and forged according to the prior art.
Claims
1. Legierung, aufweisend, insbesondere bestehend aus (in Gew.%) : 1. Alloy comprising, in particular consisting of (in % by weight):
Kohlenstoff (C) 0,02% - 0,08% Silizium (Si) 0,20% - 0,40% Mangan (Mn) 1, 60% - 2, 00% Chrom (Cr) 13,5% - 16,0% Molybdän (Mo) 2, 00% - 2,50% Nickel (Ni) 24,0% - 27, 0% Vanadium (V) 0,25% - 0,35% Aluminium (Al) 0,40% - 0, 60% Titan (Ti) 2, 00% - 2,50% Niob (Nb) 1, 00% - 1,20% Wolfram (W) 1, 80% - 2,20% Bor (B) 0,004% - 0,006% optional : Arsen (As) bis 0, 008% Zinn (Sn) bis 0, 008% Antimon (Sb) bis 0, 002% Stickstoff (N) bis 0, 005% Phosphor (P) bis 0, 025% Schwefel (S) bis 0, 015% Rest Eisen und unvermeidbare Verunreinigungen Carbon (C) 0.02% - 0.08% Silicon (Si) 0.20% - 0.40% Manganese (Mn) 1.60% - 2.00% Chromium (Cr) 13.5% - 16, 0% Molybdenum (Mo) 2.00% - 2.50% Nickel (Ni) 24.0% - 27.0% Vanadium (V) 0.25% - 0.35% Aluminum (Al) 0.40% - 0.60% Titanium (Ti) 2.00% - 2.50% Niobium (Nb) 1.00% - 1.20% Tungsten (W) 1.80% - 2.20% Boron (B) 0.004% - 0.006% optional: arsenic (As) to 0.008% tin (Sn) to 0.008% antimony (Sb) to 0.002% nitrogen (N) to 0.005% phosphorus (P) to 0.025% sulfur (S) up to 0.015% remainder iron and unavoidable impurities
2. Rohteil, insbesondere als Schmiedeteil, aufweisend eine eisenbasierte Legierung die eisenbasierte Legierung weist auf
Gew . % ) : Kohlenstoff (C) 0,02% - 0,08% Silizium (Si) 0,20% - 0,40% Mangan (Mn) 1, 60% - 2, 00% Chrom (Cr) 13,5% - 16,0% Molybdän (Mo) 2, 00% - 2,50% Nickel (Ni) 24,0% - 27, 0% Vanadium (V) 0,25% - 0,35%
Aluminium (Al) 0,40% - 0, 60% Titan (Ti) 2, 00% - 2,50% Niob (Nb) 1, 00% - 1,20% Wolfram (W) 1, 80% - 2,20% Bor (B) 0,004% - 0,006% optional : Arsen (As) bis 0, 008% Zinn (Sn) bis 0, 008% Antimon (Sb) bis 0, 002% Stickstoff (N) bis 0, 005% 2. Blank, in particular as a forged part, having an iron-based alloy which has an iron-based alloy weight %) : Carbon (C) 0.02% - 0.08% Silicon (Si) 0.20% - 0.40% Manganese (Mn) 1.60% - 2.00% Chromium (Cr) 13.5% - 16.0% Molybdenum (Mo) 2.00% - 2.50% Nickel (Ni) 24.0% - 27.0% Vanadium (V) 0.25% - 0.35% Aluminum (Al) 0.40% - 0.60% Titanium (Ti) 2.00% - 2.50% Niobium (Nb) 1.00% - 1.20% Tungsten (W) 1.80% - 2, 20% Boron (B) 0.004% - 0.006% optional: Arsenic (As) up to 0.008% Tin (Sn) up to 0.008% Antimony (Sb) up to 0.002% Nitrogen (N) up to 0.005%
Phosphor (P) bis 0, 025% Schwefel (S) bis 0, 015% und unvermeidbare Verunreinigungen Bauteil, aufweisend eine eisenbasierte Legierung die eisenbasierte Legierung weist auf
Gew . % ) : Kohlenstoff (C) 0,02% - 0,08% Silizium (Si) 0,20% - 0,40% Mangan (Mn) 1, 60% - 2, 00% Chrom (Cr) 13,5% - 16,0% Molybdän (Mo) 2, 00% - 2,50% Nickel (Ni) 24,0% - 27, 0% Vanadium (V) 0,25% - 0,35% Aluminium (Al) 0,40% - 0, 60% Titan (Ti) 2, 00% - 2,50% Niob (Nb) 1, 00% - 1,20% Wolfram (W) 1, 80% - 2,20% Bor (B) 0,004% - 0,006% optional : Arsen (As) bis 0, 008% Zinn (Sn) bis 0, 008% Antimon (Sb) bis 0, 002% Stickstoff (N) bis 0, 005% Phosphor (P) bis 0, 025% Schwefel (S) bis 0, 015% und unvermeidbare Verunreinigungen .
7 Phosphorus (P) up to 0.025% Sulfur (S) up to 0.015% and unavoidable impurities Component comprising an iron-based alloy the iron-based alloy has weight %) : Carbon (C) 0.02% - 0.08% Silicon (Si) 0.20% - 0.40% Manganese (Mn) 1.60% - 2.00% Chromium (Cr) 13.5% - 16.0% Molybdenum (Mo) 2.00% - 2.50% Nickel (Ni) 24.0% - 27.0% Vanadium (V) 0.25% - 0.35% Aluminum (Al) 0, 40% - 0.60% Titanium (Ti) 2.00% - 2.50% Niobium (Nb) 1.00% - 1.20% Tungsten (W) 1.80% - 2.20% Boron (B) 0.004% - 0.006% optional : arsenic (As) to 0.008% tin (Sn) to 0.008% antimony (Sb) to 0.002% nitrogen (N) to 0.005% phosphorus (P) to 0, 025% Sulfur (S) to 0.015% and unavoidable impurities. 7
4. Legierung, Rohteil oder Bauteil nach Anspruch 1, 2 oder 3, aufweisend 0,02Gew.% Kohlenstoff (C) . 4. Alloy, blank or component according to claim 1, 2 or 3, containing 0.02% by weight of carbon (C).
5. Legierung, Rohteil oder Bauteil nach Anspruch 1, 2 oder 3, aufweisend 0,03Gew.% - 0,08Gew.% (Kohlenstoff (C) . 5. Alloy, blank or component according to claim 1, 2 or 3, comprising 0.03% by weight - 0.08% by weight (carbon (C).
6. Legierung, Rohteil oder Bauteil nach einem oder mehreren der Ansprüche 1, 2 oder 3, aufweisend 2,5Gew.% Titan (Ti) . 6. Alloy, blank or component according to one or more of claims 1, 2 or 3, comprising 2.5% by weight titanium (Ti).
7. Legierung, Rohteil oder Bauteil nach einem oder mehreren der Ansprüche 1, 2, 3, 4 oder 5, aufweisend 2,0Gew.% - 2,3Gew.% Titan (Ti) . 7. Alloy, blank or component according to one or more of claims 1, 2, 3, 4 or 5, comprising 2.0% by weight - 2.3% by weight titanium (Ti).
8. Bauteil nach einem oder mehreren der Ansprüche 3, 4, 5, 6 oder 7, darstellend eine Rotorscheibe oder Turbinenschaufel oder, Turbinenring, insbesondere jeweils einer Gasturbine oder Dampfturbinenschaufel oder Dampf turb inen schmiede teil und insbesondere mit einer Wärmebehandlung nach einem oder mehreren der Ansprüche 9 bis 14. 8. The component according to one or more of claims 3, 4, 5, 6 or 7, representing a rotor disk or turbine blade or turbine ring, in particular a gas turbine or steam turbine blade or steam turbine in a forged part and in particular with a heat treatment according to one or more of Claims 9 to 14.
9. Verfahren zur Wärmebehandlung eines Austenits, insbesondere eines Rohteils oder Bauteils nach einem oder mehreren Ansprüche 2, 3, 4, 5, 6, 7 oder 8, aufweisend : eine Lösungsglühung bei mindestens 1253K, eine erste Auslagerung bei mindestens 993K, optional einer zweite Auslagerung bei mindestens 923K, insbesondere mindestens 30K unterhalb der Temperatur der ersten Auslagerung, optional
8 eine dritte Auslagerung bei mindestens 953K, die mindestens 30K unterhalb der Temperatur der zweiten Auslagerung liegt , insbesondere bei 953K . . Verfahren nach Anspruch 9 , aufweisend eine Lösungsglühung bei 1253K, eine erste Auslagerung bei mindestens 993K, insbesondere bei 993K, optional eine zweite und/oder dritte Auslagerung . . Verfahren nach Anspruch 9 , aufweisend eine Lösungsglühung bei 1253K, eine erste Auslagerung bei mindestens 1033K, insbesondere bei 1033K, optional eine zweite und/oder dritte Auslagerung . . Verfahren nach Anspruch 9 , aufweisend eine Lösungsglühung bei 1293K, eine erste Auslagerung bei mindestens 1033K, insbesondere bei 1033K, optional eine zweite und/oder dritte Auslagerung . . Verfahren nach einem oder mehreren der Ansprüche 9 , 10 , 11 oder 12 , aufweisend eine Lösungsglühung bei mindestens 1253K, eine erste Auslagerung mindestens bei 993K, eine zweite Auslagerung bei mindestens 923K, insbesondere bei 923K, optional eine dritte Auslagerung .
9 . Verfahren nach einem oder mehreren der Ansprüche 9, 10,9. Process for the heat treatment of an austenite, in particular a blank or component according to one or more of claims 2, 3, 4, 5, 6, 7 or 8, comprising: a solution annealing at at least 1253K, a first aging at at least 993K, optionally a second Aging at at least 923K, in particular at least 30K below the temperature of the first aging, optional 8 a third aging at at least 953K, which is at least 30K below the temperature of the second aging, in particular at 953K. . Method according to claim 9, comprising a solution annealing at 1253K, a first aging at at least 993K, in particular at 993K, optionally a second and/or third aging. . Method according to claim 9, comprising a solution annealing at 1253K, a first aging at at least 1033K, in particular at 1033K, optionally a second and/or third aging. . Method according to claim 9, comprising a solution annealing at 1293K, a first aging at at least 1033K, in particular at 1033K, optionally a second and/or third aging. . Method according to one or more of claims 9, 10, 11 or 12, comprising a solution annealing at at least 1253K, a first aging at least at 993K, a second aging at at least 923K, in particular at 923K, optionally a third aging. 9 . Method according to one or more of claims 9, 10,
11 oder 12, aufweisend eine Lösungsglühung bei mindestens 1253K, eine erste Auslagerung bei mindestens 993K, eine zweite Auslagerung bei mindestens 923K, optional eine dritte Auslagerung bei 953K. . Verfahren nach einem oder mehreren der Ansprüche 9, 10,11 or 12, comprising a solution treatment at at least 1253K, a first aging at at least 993K, a second aging at at least 923K, optionally a third aging at 953K. . Method according to one or more of claims 9, 10,
11, 12, 13 oder 14, bestehend aus einer Lösungsglühung bei mindestens 1253K, einer ersten Auslagerung bei mindestens 993K. . Verfahren nach einem oder mehreren der Ansprüche 9, 10,11, 12, 13 or 14, consisting of a solution treatment at at least 1253K, a first aging at at least 993K. . Method according to one or more of claims 9, 10,
11, 12, 13 oder 14, bestehend aus einer Lösungsglühung bei mindestens 1253K, einer ersten Auslagerung bei mindestens 993K, einer zweiten Auslagerung bei mindestens 923K. . Verfahren nach einem oder mehreren der Ansprüche 9, 10,11, 12, 13 or 14, consisting of a solution treatment at at least 1253K, a first aging at at least 993K, a second aging at at least 923K. . Method according to one or more of claims 9, 10,
11, 12, 13 oder 14, bestehend aus einer Lösungsglühung bei mindestens 1253K, einer ersten Auslagerung bei mindestens 993K, einer zweiten Auslagerung bei mindestens 923K, sowie einer dritten Auslagerung bei mindestens 953K.
11, 12, 13 or 14, consisting of a solution treatment at at least 1253K, a first aging at at least 993K, a second aging at at least 923K, and a third aging at at least 953K.
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DE102020213539.8A DE102020213539A1 (en) | 2020-10-28 | 2020-10-28 | Alloy, blank, component made of austenite and a process |
PCT/EP2021/074100 WO2022089814A1 (en) | 2020-10-28 | 2021-09-01 | Alloy, raw workpiece, component consisting of austenite, and method for heat-treating an austenite |
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DE1024719B (en) | 1951-04-16 | 1958-02-20 | Carpenter Steel Company | Hot-formable alloys |
GB812582A (en) * | 1956-07-18 | 1959-04-29 | Universal Cyclops Steel Corp | Ferrous base alloys |
GB826712A (en) * | 1956-09-18 | 1960-01-20 | Westinghouse Electric Corp | Improvements in or relating to precipitation hardenable austenitic alloys |
GB1070103A (en) | 1963-09-20 | 1967-05-24 | Nippon Yakin Kogyo Co Ltd | High strength precipitation hardening heat resisting alloys |
GB1344917A (en) | 1970-02-16 | 1974-01-23 | Latrobe Steel Co | Production of superalloys |
JPS5631345B2 (en) | 1972-01-27 | 1981-07-21 | ||
JPH0448051A (en) * | 1990-06-14 | 1992-02-18 | Daido Steel Co Ltd | Heat resistant steel |
FR2727982A1 (en) * | 1994-12-13 | 1996-06-14 | Imphy Sa | AUSTENITIC STAINLESS STEEL FOR HOT EMPLOYMENT |
US5951789A (en) | 1996-10-25 | 1999-09-14 | Daido Tokushuko Kabushiki Kaisha | Heat resisting alloy for exhaust valve and method for producing the exhaust valve |
DE102007025758A1 (en) | 2007-06-01 | 2008-12-04 | Mahle International Gmbh | seal |
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