A brief introduction to superalloy
A superalloy, or high-performance alloy, is an alloy with the ability to operate at a high fraction of its melting point. 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.
Superalloy development has relied heavily on both chemical and process innovations. Superalloys develop high temperature strength through solid solution strengthening and precipitation strengthening from secondary phase precipitates such as gamma prime and carbides. Oxidation or corrosion resistance is provided by elements such as aluminium and chromium. Superalloys are often cast as a single crystal—while grain boundaries may provide strength at low temperatures, they decrease creep resistance.
The primary application for such alloys is in aerospace and marine turbine engines. Creep is typically the lifetime-limiting factor in gas turbine blades.
Superalloys are the materials which have made much of very-high-temperature engineering technology possible.
High temperature alloys for aviation and aerospace
Product name: GH2907, GH4169 (IN718), GH4698, GH2132 (A286), GH6605, GH4742, GH4720Li, GH4738 (Waspaloy), GH2901, GH2706, GH4049, GH4220, GH4141, GH4099, GH4133B, GH3536, GH4163128 GH2909, GH3044, GH1140, GH1035, GH4098, GH6783, GH3625, GH1131, GH4600, GH6159, etc.
superalloys for ships
Product name: GH4169, GH4698, GH4742, GH696, GH3039, GH4413, GH4133B, Super alloy80A
Superalloys for energy and power
Product Name: GH4169, GH2132, Incoloy800, Inconel 600, Inconel X750, N06625, 690, UNS N10003, 1Cr15Ni36W3Ti, New No. 13
High temperature (corrosion resistant) alloys for steam turbines
Product Name: R26, GH1016, GH6783, GH4145, GH2136, GH4698, GH742, GH4099, GH4169, GH2706, GH3039, GH3536, GH4080A, GH4738 (Waspaloy), N08120
Corrosion-resistant alloys for petroleum and petrochemical use
Product name: TDJ-G3, N06625, N10276, N08367, N08810, N08825, N08028, N08020, N08904, N06601, N08367, NS334, NS336, NS331, Incoloy800 series, Incoloy825, IN718 (Inconel718), Inconel600 , MONEL 400, MONEL K500, FN-2, HastelloyC4, HastelloyC276, HastelloyC2000, HastelloyC59, HastelloyB2, HastelloyB3
High temperature alloys for standard parts
Product name: IN718 (Inconel718), A286, N06625