Development of a new alloy for directional solidification of large industrial gas turbine blades

Bürgel R, Grossmann J, Lüsebrink O, Mughrabi H, Pyczak F, Singer R, Volek A (2004)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2004

Pages Range: 25-34

Event location: Champion, PA

Abstract

A nickel-base superalloy for directional solidification (DS) of industrial gas turbine blades was developed based on alloy IN792 with approximately 12 mass % Cr. From preliminary test results a temperature gain in stress-rupture strength of 30 K can be expected compared to Re-free aero engine alloys with columnar grains. This significant strength improvement can be achieved by adding 2 to 3 mass % Re in the group of 12 mass % Cr alloys. With balanced Cr-, Al-, and Ti- contents they also exhibit superior hot corrosion resistance compared to typical high Al / low Cr / low Ti aero engine alloys. The castability for large blades was proved.

Authors with CRIS profile

Hael Mughrabi Technische Fakultät Robert Singer Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM)

Additional Organisation(s)

Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Related research project(s)

Activity Development of high temperature alloys Jan. 1, 1990 - Jan. 1, 1993

Involved external institutions

Universität Osnabrück DE Germany (DE)

How to cite

APA:

Bürgel, R., Grossmann, J., Lüsebrink, O., Mughrabi, H., Pyczak, F., Singer, R., & Volek, A. (2004). Development of a new alloy for directional solidification of large industrial gas turbine blades. In Green K.A.; Pollock T.M.; Harada H.; Howson T.E.; Reed R.C.; Schirra J.J.; Walston S. (Eds.), Proceedings of the SUPERALLOYS 2004 - Tenth International Symposium on Superalloys (pp. 25-34). Champion, PA.

MLA:

Bürgel, Ralf, et al. "Development of a new alloy for directional solidification of large industrial gas turbine blades." Proceedings of the SUPERALLOYS 2004 - Tenth International Symposium on Superalloys, Champion, PA Ed. Green K.A.; Pollock T.M.; Harada H.; Howson T.E.; Reed R.C.; Schirra J.J.; Walston S., 2004. 25-34.

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