Sulfidation resistant alloys and structures
Abstract
Abstract A NICKEL-CONTAINING ALLOY AND HOT STAGE GAS TURBINE PARTS MADE THEREFROM CONPRISING IN WEIGHT PERCENT ABOUT 16% CHROMIUM, ABOUT 20% COBALT, A MEMBER OF THE GROUP CONSISTING OF MOLYBDENUM, TANALUM, COLUMBIUM AND MIXTURES THEREOF WITHIN THE RANGE OF UP TO 4% MOLYBDENUM, UP TO 5% TANATALUM AND UP TO 2.5% COLUMBIUM (NIOBIUM), ABOUT 0.25% TO ABOUT 5% TUNGSTEN, ABOUT 0.03% TO ABOUT 0.2% CARBON, ABOUT 0.005% TO ABOUT 0.05% BORON AND ABOUT 0.01% TO ABOUT ZIRCONIUM. THE ALLOY ALSO CONTAINS AMOUNTS OF ALUMINUM AND TITANIUM SUCH THAT THE RATIO OF THE ATOMIC PERCENT ALUMINUM TO THE ATOMIC PERCENT TITANIUM IS BETWEEN ABOUT 1 AND 2 AND THE TOTAL OF THE ATOMIC PERCENT TITANIUN AND THE ATOMIC PERCENT ALUMINUM IS LESS THAN ABOUT 12 WITH THE MINIMUM AMOUNT OF ALUMINUM BEING ABOUT 2.5% BY WEIGHT AND THE MAXIMUM AMOUNT OF TITANIUM BEING ABOUT 5% BY WEIGHT AND THE BALANCE OF THE ALLOY, EXCEPT FOR IMPURITIES AND INCIDENTAL ELEMENTS, BEING NICKEL.
Inventors
- 👤 Carl H Lund
- 👤 Michael J Woulds
- 👤 Rudolf H Thielemann
- 👤 John Hockin
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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