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өзгөчөлүктөрү

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.


Тиркемелер:

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.


өзгөчөлүктөрү:

SUPER ALLOY
Кытай классыЭл аралык даража
GH1140        
GH2036        
GH2132A-286
GH2696        
GH2901Эритме 901
GH2907907
GH3030Nimonic 75
GH3039        
GH3044        Хейнс 230
GH3128
GH3536
GH3600        600
GH3625        625
GH4033        
GH4080A        Nimonic 80A
GH4090Nimonic 90
GH4145Inconel X-750
GH4169718


нерсеӨлчөмү (мм)ProcessЖеткирүү шарты
тегерек BarDIA1.0 - 30Муздак тартуу / Борборсуз майдалооBright & Anneal
DIA20 - 80пилингBright & Anneal
DIA 13-180Hot RolledКара бет жана Anneal
DIA 70 - 400Hot RolledКара бет жана Anneal
Жалпак тилкеT 3.0-20 XW 20-100Hot RolledКара бет жана Anneal
тосууT 20-200 X 300-800Hot Rolled & Hot ForgedКара бети / Machine & Anneal
Wire RodDIA 5.5 - 13Hot RolledКара бет жана Anneal
барактарT1.0 - 2.5Муздак түрмөкКара бет жана Anneal
T 2.5 - 8.0Hot RolledКара бет жана Anneal


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