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Súper aliatge

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Súper aliatge



A superalloy, or high-performance alloy, is an alloy with the ability to operate at a high fraction of its melting point.[1] Several key characteristics of a superalloy are excellent mechanical strength, resistance to thermal creep deformation, good surface stability, and resistance to corrosion or oxidation.

The crystal structure is typically face-centered cubic (FCC) austenitic. Examples of such alloys are Hastelloy, Inconel, Waspaloy, Rene alloys, Incoloy, MP98T, TMS alloys, and CMSX single crystal alloys.


Nickel-based superalloys are used in load-bearing structures to the highest homologous temperature of any common alloy system (Tm = 0.9, or 90% of their melting point). Among the most demanding applications for a structural material are those in the hot sections of turbine engines. The preeminence of superalloys is reflected in the fact that they currently comprise over 50% of the weight of advanced aircraft engines. The widespread use of superalloys in turbine engines coupled with the fact that the thermodynamic efficiency of turbine engines is increased with increasing turbine inlet temperatures has, in part, provided the motivation for increasing the maximum-use temperature of superalloys. In fact, during the past 30 years turbine airfoil temperature capability has increased on average by about 4 °F (2.2 °C) per year. Two major factors which have made this increase possible are

 Advanced processing techniques, which improved alloy cleanliness (thus improving reliability) and/or enabled the production of tailored microstructures such as directionally solidified or single-crystal material.

 Alloy development resulting in higher-use-temperature materials primarily through the additions of refractory elements such as Re, W, Ta, and Mo.


Grau xinèsGrau Internacional
GH2901Aliatge 901
GH2907Inconel 907
GH3030Nimonic 75
GH3044        Haynes 230
GH3600        Inconel 600
GH3625        Inconel 625
GH4080A        Nimonic 80A
GH4090Nimonic 90
GH4145Inconel X-750
GH4169Inconel 718

ArticleMida (mm)procésCondició d’entrega
Barra RodonaDIA1.0 - 30Estirat en fred / Mòlta sense centresBrillant i Recuit
DIA20 - 80peelingBrillant i Recuit
DIA 13-180Enrotllat en calentSuperfície negra i recuit
DIA 70 - 400Enrotllat en calentSuperfície negra i recuit
Barra planaT 3.0-20 XW 20-100Enrotllat en calentSuperfície negra i recuit
BloquejarT 20-200 X 300-800Laminat en calent i forjat en calentSuperfície negra / Màquina i recuit
Rodet de filferroDIA 5.5 - 13Enrotllat en calentSuperfície negra i recuit
FullesT1.0 - 2.5Enrotllat en fredSuperfície negra i recuit
T 2.5 - 8.0Enrotllat en calentSuperfície negra i recuit