Off-gas-bypassed component e.g. nozzle, guide vane, guide baffle and idler for supercharger, comprises alloy containing aluminum, boron, carbon, niobium, zirconium, titanium, tungsten, tantalum, silicon, vanadium, chromium and iron

摘要

#CMT# #/CMT# An off-gas-bypassed component contains (in wt.%) alloy comprising aluminum (14-25), boron (0.001-4), carbon (0.01-2), niobium (0-5), zirconium (0-2), titanium (0-25), tungsten (0-2), tantalum (0-5), silicon (0-5), vanadium (0-5), chromium (0-10) and remainder of iron. The off-gas-bypassed component is positioned within an exhaust gas stream path. #CMT# : #/CMT# An independent claim is included for usage of alloy for production of off-gas-bypassed component. #CMT#USE : #/CMT# Off-gas-bypassed component e.g. turbine, heat-shielding component, compressor component, bush for bearing of turbine shaft and compressor shaft, control device, nozzle, guide vane, guide baffle and idler for supercharger and turbo component (all claimed) used for heat exchanger. #CMT#ADVANTAGE : #/CMT# The off-gas-bypassed component has excellent corrosion resistance, heat resistance and oxidation resistance. #CMT#METALLURGY : #/CMT# Preferred Composition: The off-gas-bypassed component contains (in wt.%) alloy comprising aluminum (23-50), niobium (0.01-5), zirconium (0.01-2), titanium (0.01-25), tungsten (0.01-2), tantalum (0.01-5), silicon (0.01-5), vanadium (0.01-5) and chromium (0.01-10), and the alloy is free from contamination by chromium.