Gas turbine engine as a power plant has been widely used in the aviation field. With the development of aviation industry, the demands for the perproties of gas turbine blade have recently increased significantly. Hot corrosion in gas turbine engine in the coastal environment speeds up the failure of turbine blade due to the combined effects of fuel combustion formed Na_2SO_4 and NaCl in the ocean atmosphere Therefore, to develop a kind of blade material with high strength and good hot corrosion resi...