METHOD OF MANUFACTURING SURFACE-REFORMED NICKEL-BASE ALLOY CAPABLE OF ENHANCING THERMAL CONDUCTIVITY

摘要

PURPOSE: A method of manufacturing surface-reformed nickel-base alloy is provided to enhance long-term oxidation resistance and corrosion resistance since aluminum can be continuously supplied.;CONSTITUTION: A method of manufacturing surface-reformed nickel-base alloy comprises next steps. Aluminum or nickel aluminide is physically deposited on the surface of nickel-base alloy(a first step). An inter-diffusion thermal treating process is performed under a temperature of 550~650°C(a second step). The thickness of an aluminum or nickel aluminide deposited layer formed by the first step is 3 ~ 6μm. An inter-metal compound coated layer of Al3Ni2 is formed on the surface of the nickel-base alloy from the second step. The thickness of the inter-metal compound coated layer is 10 ~ 20μm.;COPYRIGHT KIPO 2012