Abstract:
A combustion turbine component (10) includes a combustion turbine component substrate (16) and an alloy coating (14) on the combustion turbine component substrate. The alloy coating (14) includes a first amount, by weight percent, of nickel (Ni) and a second amount, by weight percent, of cobalt (Co), the first amount being greater than the second amount. The alloy coating also includes chromium (Cr), aluminum (Al), and yttrium (Y). The alloy coating further includes at least one of titanium (Ti), tantalum (Ta), tungsten (W), and rhenium (Re). Moreover, the alloy coating includes at least one rare earth element, and an oxide of at least one of the yttrium the at least one rare earth element.
Abstract:
Disclosed are novel nickel-base alloy compositions that may be cast as a single crystal or directionally solidified alloy consisting essentially of, by weight: 8-12% Cr, 10-14% Co, 0.3-0.9% Mo, 3-7% W, 2-8% Ta, 2.0-5.5% Al, 1.5-5.0 % Ti, up to 2% Nb, less than 0.1% B, less than 0.1% Zr, 0.05-0.15% C, less than 0.5% Hf, 2-4% Re, 0.05-0.2% Si, up to 0.015% S, up to 0.1% La, up to 0.1% Y, up to 0.1% Ce, up to 0.1% Nd, up to 0.1% Dy, up to 0.1% Pr, up to 0.1% Gd, balance is Ni, and wherein (La+Y+Ce+Nd+Dy+Pr+Gd) is 0.001-0.1%. The compositions for the nickel-base superalloy have a balance between oxidation resistance, corrosion resistance, castability, and mechanical properties, such as creep resistance and thermo-mechanical fatigue resistance
Abstract translation:公开了可以铸造为单晶或定向凝固合金的新型镍基合金组合物,其基本上由重量比组成:8-12%Cr,10-14%Co,0.3-0.9%Mo,3-7%W ,2-8%Ta,2.0-5.5%Al,1.5-5.0%Ti,至多2%Nb,小于0.1%B,小于0.1%Zr,0.05-0.15%C,小于0.5%Hf,2 -4%Re,0.05-0.2%Si,至多0.015%S,至多0.1%La,至多0.1%Y,至多0.1%Ce,至多0.1%Nd,至多0.1%Dy,至多0.1 %Pr,高达0.1%的Gd,余量为Ni,其中(La + Y + Ce + Nd + Dy + Pr + Gd)为0.001-0.1%。 镍基超级合金的组合物在抗氧化性,耐腐蚀性,浇铸性和机械性能如抗蠕变性和耐热机械疲劳性之间具有平衡
Abstract:
Disclosed are novel nickel-base alloy compositions that may be cast as a single crystal or directionally solidified alloy consisting of, by weight: 8-12% Cr, 10-14% Co, 0.3-0.9% Mo, 3-7% W, 2-8% Ta, 2.0-5.5% Al, 1.5-5.0 % Ti, up to 2% Nb, less than 0.1% B, less than 0.1% Zr, 0.05-0.15% C, less than 0.5% Hf, 2-4% Re, 0.05-0.2% Si, up to 0.015% S, up to 0.1% La, up to 0.1% Y, up to 0.1% Ce, up to 0.1% Nd, up to 0.1% Dy, up to 0.1% Pr, up to 0.1% Gd, balance Ni, and wherein (La+Y+Ce+Nd+Dy+Pr+Gd) is 0.001-0.1%. The compositions for the nickel-base superalloy have a balance between oxidation resistance, corrosion resistance, castability, and mechanical properties, such as creep resistance and thermo-mechanical fatigue resistance.
Abstract translation:公开了可以铸造为单晶或定向凝固合金的新型镍基合金组合物,其由以重量计:8-12%Cr,10-14%Co,0.3-0.9%Mo,3-7%W, 2-8%Ta,2.0-5.5%Al,1.5-5.0%Ti,至多2%Nb,小于0.1%B,小于0.1%Zr,0.05-0.15%C,小于0.5%Hf,2- 4%Re,0.05-0.2%Si,至多0.015%S,至多0.1%La,至多0.1%Y,至多0.1%Ce,至多0.1%Nd,至多0.1%Dy,至多0.1% Pr,高达0.1%的Gd,余量为Ni,其中(La + Y + Ce + Nd + Dy + Pr + Gd)为0.001-0.1%。 镍基超级合金的组合物在抗氧化性,耐腐蚀性,浇铸性和机械性能如抗蠕变性和耐热机械疲劳性之间具有平衡。
Abstract:
A combustion turbine component (10) includes a combustion turbine component substrate (16) and an alloy coating (14) on the combustion turbine component substrate. The alloy coating (14) includes a first amount, by weight percent, of cobalt (Co) and a second amount, by weight percent, of nickel (Ni), the first amount being greater than the second amount. The alloy coating further includes chromium (Cr), aluminum (Al), at least one rare earth element, and an oxide of the at least one rare earth element.
Abstract:
Die Erfindung betrifft einen Rotor (12) für eine axial durchströmbare Strömungsmaschine, mit mehreren stapelweise angeordneten Rotorscheiben (10, 14, 16, 24, 26) die mittels mindestens eines Zugankers (58) miteinander verspannt sind. Um einen besonders preiswerten Rotor (12) bei kompakter Bauweise anzugeben, der insbesondere für besonders hohe Druckverhältnisse bei vergleichsweise großen Verdichtermassenströmen ausgelegt ist, wird vorgeschlagen, dass zumindest einer der Rotorscheiben (24), (26) des Rotors (12) einen geringeren äußeren Durchmesser als eine der benachbarten Rotorscheiben (16) aufweist und der vorhandene Durchmesserunterschied durch eine die Rotorscheibe (24, 26) mit geringerem äußerem Durchmesser ringförmig umgreifende Trommel (28) ausgeglichen ist. Dabei kann lediglich die Trommel (28) aus einem wärmebeständigeren Material gefertigt sein. Die von ihr umgriffenen Rotorscheiben (24, 26), können dagegen aus einem preiswerteren Material gefertigt sein, was zu Kosteneinsparung führt. Ferner kann die Trommel (28) zumindest ein Schaufelkranz mehr tragen als Rotorscheiben (24, 26), die von ihr umgriffen sind.
Abstract:
A combustion turbine component (10) includes a combustion turbine component substrate (16) and an alloy coating (14) on the combustion turbine component substrate. The alloy coating (14) includes nickel (Ni), chromium (Cr), aluminum (Al), and yttrium (Y). Furthermore, the alloy coating includes at least one of titanium (Ti), tantalum (Ta), tungsten (W), and rhenium (Re). The alloy coating also includes at least one rare earth element, and an oxide of at least one of the yttrium (Y) and the at least one rare earth element.
Abstract:
A method of manufacturing a metallic component includes atomizing, in an inert atmosphere, a metallic liquid having at least one rare-earth element and at least one non rare-earth element to form a metallic powder. A series of heat treating steps are performed on the metallic powder. A first heat treating step is performed in an oxidizing atmosphere, and a second heat treating step is performed in an inert atmosphere. A third heat treating step is performed in a reducing atmosphere to form a metallic power having an increased proportion of rare-earth oxides compared to non rare-earth oxides. The metallic component is formed from the metallic powder having the increased proportion of rare-earth oxides compared to non rare-earth oxides.
Abstract:
A combustion turbine component (10) includes a combustion turbine component substrate (16) and an alloy coating (14) on the combustion turbine component substrate. The alloy coating (14) includes a first amount, by weight percent, of cobalt (Co) and a second amount, by weight percent, of nickel (Ni), the first amount being greater than the second amount. The alloy coating further includes chromium (Cr), aluminum (Al), at least one rare earth element, and an oxide of the at least one rare earth element.
Abstract:
A combustion turbine component (10) includes a combustion turbine component substrate (16) and an alloy coating (14) on the combustion turbine component substrate. The alloy coating (14) includes iron (Fe), chromium (Cr), aluminum (Al), at least one of titanium (Ti) and molybdenum (Mo), at least one rare earth element, and an oxide of the at least one rare earth element.