Alstom

Abb Research Ltd.

Alstom (switzerland) Ltd

Christoph Sommer

Hans-Peter Bossmann

Marianne Sommer

Maxim Konter

Hans Joachim Schmutzler

Peter David Holmes

Harald Reiss

Christoph Tonnes

Raiko Milanovic

Ludwig Weiler

Christoph Toennes

Roland Muecke

Otto Bernhardi

Hans-Joachim Schmutzler

Otto-Ernst Bernhardi

Method of estimating the lifetime of thermal barrier coatings

A turbine blade and a method for its production. In order to protect the turbine blade from being damaged by particles carried in the gas, surfaces of the turbine blade are melted down to a predetermined depth in order to form a defined amorphous region on a crystalline structure of a base material. The surfaces are then cooled down at a predetermined temperature reduction rate per unit time.

Turbine blade and a method for its production

A nickel base alloy comprising: (measured in % by weight): 11-16% Co; 12.2-15.5% Cr; 6.5-7.2% Al; 3.2-5.0% Re; 1.0-2.5% Si; 1.5-4.5% Ta; 0.2-2.0% Nb; 0.2-1.2% Hf; 0.2-1.2% Y; 0-1.5% Mg; 0-1.5% Zr; 0-0.5% La and La series elements; 0-0.15% C; 0-0.1% B; and a remainder including Ni and impurities. The alloy is particularly suited for coatings for gas turbine components such as gas turbine blades and vanes.

Nickel base alloy

The invention relates to a coating composition for superalloy structural parts, especially for gas turbine vanes and blades, which provides simultaneously excellent environmental resistance and highly improved thermomechanical behavior. The coating consists essentially of, by weight, 28-35% Co, 11-15% Cr, 10-13% Al, 0-1% Re, 1-2% Si, 0.2-1% Ta, 0.005-0.5% Y, 0-5% Ru, 0-1% Ca, 0-1% Mg, 0-0.5% La (or elements from the La series), 0-0.1% B, balance Ni and incidental impurities.

Coating composition for high temperature protection

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Plankstadt, Germany

Christoph Sommer