DE3270941D1 - Turbine blade material with high fatigue-corrosion resistance, method of production and use - Google Patents

Turbine blade material with high fatigue-corrosion resistance, method of production and use

Info

Publication number
DE3270941D1
DE3270941D1 DE8282200212T DE3270941T DE3270941D1 DE 3270941 D1 DE3270941 D1 DE 3270941D1 DE 8282200212 T DE8282200212 T DE 8282200212T DE 3270941 T DE3270941 T DE 3270941T DE 3270941 D1 DE3270941 D1 DE 3270941D1
Authority
DE
Germany
Prior art keywords
weight
mpa
turbine blade
blade material
austenite
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.)
Expired
Application number
DE8282200212T
Other languages
German (de)
Inventor
Andrejs Dr Atrens
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4218072&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3270941(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Application granted granted Critical
Publication of DE3270941D1 publication Critical patent/DE3270941D1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Abstract

1. Turbine blade material of high corrosion fatigue strength with a two-phased mixed structure of austenite and ferrite or austenite and martensite, consisting of Carbon = 0.005 to 0.06% by weight Chromium = 18 to 30% by weight Molybdenum = 1 to 6% by weight Nickel = 2 to 6% by weight Manganese = 4 to 8% by weight at least one of the elements copper, titanium and aluminium, the content of each individual element being at least 0.2% by weight and the total content of copper, titanium and aluminium being 0.5 to 4% by weight, and optionally 0.2 to 1.5% by weight of nitrogen, the remainder being iron and unavoidable impurities, this material having a yield stress of at least 800 MPa, and elongation at break of at least 15% for a specimen length : specimen diameter ratio = 4.4 and a fatigue strength relative to alternating tensile/compressive stresses, under aerated 4N NaCl solution of pH = 5 at 80 degrees C, of at least 350 MPa without a static preload and of at least +- 250 MPa under a static preload of + 250 MPa relative to 10**8 load changes, and a notched impact strength of at least 50 J per cm**2 .
DE8282200212T 1981-03-16 1982-02-22 Turbine blade material with high fatigue-corrosion resistance, method of production and use Expired DE3270941D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1766/81A CH654594A5 (en) 1981-03-16 1981-03-16 TURBINE BLADE MATERIAL OF HIGH STRENGTH AGAINST CORROSION FATIGUE, METHOD FOR THE PRODUCTION THEREOF AND ITS USE.

Publications (1)

Publication Number Publication Date
DE3270941D1 true DE3270941D1 (en) 1986-06-12

Family

ID=4218072

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282200212T Expired DE3270941D1 (en) 1981-03-16 1982-02-22 Turbine blade material with high fatigue-corrosion resistance, method of production and use

Country Status (5)

Country Link
EP (1) EP0060577B2 (en)
JP (1) JPS57161052A (en)
AT (1) ATE19659T1 (en)
CH (1) CH654594A5 (en)
DE (1) DE3270941D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128632A (en) * 1982-10-23 1984-05-02 Mather & Platt Ltd Stainless steel
DE3339593A1 (en) * 1983-11-02 1985-05-15 Brown, Boveri & Cie Ag, 6800 Mannheim METHOD FOR PRODUCING SEMI-FINISHED PRODUCTS FROM A STAINLESS STEEL AUSTENITIC OR MARTENSITICAL STEEL
US4657606A (en) * 1984-04-27 1987-04-14 Bonar Langley Alloys Limited High chromium duplex stainless steel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767167C (en) * 1937-06-17 1951-12-06 Fried Krupp A G Objects resistant to stress corrosion
USRE28772E (en) * 1968-04-30 1976-04-13 Armco Steel Corporation High strength corrosion-resistant stainless steel
FR2194195A5 (en) * 1972-07-28 1974-02-22 Creusot Loire
GB1456634A (en) * 1972-09-13 1976-11-24 Langley Alloys Ltd High strength stainless steel having a high resistance to corro sive and abrasive wear in corrosive environments particularly chloride environments
DE2624117A1 (en) * 1976-05-28 1977-12-08 Graenges Nyby Ab TOUGH FERRITIC STEELS AND USE THE SAME FOR METALLIC OBJECTS, IN PARTICULAR WELDED CONSTRUCTIONS
US4099966A (en) * 1976-12-02 1978-07-11 Allegheny Ludlum Industries, Inc. Austenitic stainless steel
DE2815439C3 (en) * 1978-04-10 1980-10-09 Vereinigte Edelstahlwerke Ag (Vew), Wien Niederlassung Vereinigte Edelstahlwerke Ag (Vew) Verkaufsniederlassung Buederich, 4005 Meerbusch Use of a ferritic-austenitic chrome-nickel steel
JPS5662949A (en) * 1979-10-23 1981-05-29 Mitsubishi Heavy Ind Ltd Steel products for steam turbine moving blade or the like

Also Published As

Publication number Publication date
EP0060577B1 (en) 1986-05-07
JPS57161052A (en) 1982-10-04
CH654594A5 (en) 1986-02-28
EP0060577A1 (en) 1982-09-22
EP0060577B2 (en) 1993-06-30
ATE19659T1 (en) 1986-05-15

Similar Documents

Publication Publication Date Title
NO880653D0 (en) AUSTENITIC STAINLESS STEEL WITH COMBINED STRENGTH AND RESISTANCE TO INTERGRANULAR CORROSION.
SE8802883D0 (en) TOUGH WELDABLE DUPLEX STAINLESS STEEL
DE3270941D1 (en) Turbine blade material with high fatigue-corrosion resistance, method of production and use
DE3572696D1 (en) Non-magnetic steel having high corrosion resistance and high strength for use as material of drill collar, and drill collar made of the steel
EP0265273A3 (en) High-strength spring steel
JPS575849A (en) Steel excellent in corrosion resistance for use as seamless steel pipe
JPS5573848A (en) High strength steel for welded structure with superior sulfide stress corrosion cracking resistance
BR8404634A (en) SUBSTANTIALLY AUSTENITIC STAINLESS STEEL, COLD HARDENABLE
SE8300954D0 (en) STAINLESS STEEL
JPS57188652A (en) High-strength austenite steel with superior cold work hardenability
JPS565949A (en) High tensile steel with superior sulfide corrosion crack resistance and superior corrosion resistance
ATE58183T1 (en) STRESS CORROSION RESISTANT STRUCTURAL STEEL.
JPS5677365A (en) Die steel
JPS5644748A (en) Wear-resistant high-tensile steel with superior weldability
Lardon et al. Duplex Austenitic--Ferritic Stainless Steels, Mechanical Properties and Corrosion Resistance
JPS57143465A (en) Steel for railroad wheel with superior wear resistance and cracking loss resistance
JPH08134547A (en) Production of hollow steel tool
DE3344541C1 (en) Weldable pipes for abrasive stresses
Levin et al. Influence of Certain Factors on the Mechanical Properties of Steel 11 OG 13 L
Wiemann et al. The Development of an Improved 2% Cr--Mo--Ni--W--V HP/IP Rotor Material
Schumacher Wear and Galling of Nitrogen-Strengthened Stainless Steels
Saitoh et al. Corrosion Fatigue Behaviour of 13% Cr Steels in a Simulated Geothermal Environment
DE2967307D1 (en) Construction steel with high fatigue resistance, process for producing said steel
Debold Method of Enhancing Intergranular Corrosion Resistance of a Weld of a Stainless Duplex Ferritic--Austenitic Steel
Honkura et al. High Strength Stainless Steel, and Process for Its Production

Legal Events

Date Code Title Description
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: BBC BROWN BOVERI AG, BADEN, AARGAU, CH

8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT

8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee