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.

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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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