Superalloys: Titanium Alloy, Titanium molybdenum hafnium alloy, titanium molybdenum hafnium niobium alloy), nickel based alloy (nickel molybdenum iron alloy), iron base alloy (iron molybdenum alloy) and molybdenum based alloy (molybdenum rhenium lanthanum oxide, molybdenum rhenium oxide cerium, molybdenum rhenium oxide thorium) such as super alloy.
Super alloy is also called the high temperature alloy.Iron, nickel and cobalt based high temperature alloy.At high temperature high endurance, creep and fatigue strength, its temperature can reach 1100 ℃ or so.
Iron, nickel and cobalt based high temperature alloy.At high temperature high endurance, creep and fatigue strength, its temperature can reach 1100 ℃ or so.Its typical organization is: austenitic matrix and the dispersion in the strengthening phase, it can be a carbide phase, intermetallic phase particle or stable compounds.According to the requirements on the alloy composition and use, can choose the electric arc furnace, induction furnace, vacuum induction furnace for a furnace and electroslag furnace smelting or use blank consumption for remelting, master alloy with electron beam or low pressure plasma as heat energy in smelting process.On the casting process, in addition to the conventional precision casting, directional crystallization and single crystal technique has been widely used, rapid solidification of powder metallurgy and mechanical alloying process are two kinds of preparation methods.High temperature alloys are widely used in aviation, aerospace, ships, locomotives, power generation and petrochemical industry.