PURPOSE: To provide a heat and corrosion resistant alloy member having improved surface characteristics such as oxidation and corrosion resistance without deteriorating characteristics peculiar to a heat and corrosion resistant alloy material used.
CONSTITUTION: A heat and corrosion resistant alloy material contg. Al and at least one kind of metal (M) selected among Cr, Ni and Co is prepd. and a layer having a two-phase separated structure contg. a phase of M3Al as an intermetallic compd. having an fcc structure dispersed in a dense matrix phase having a bcc structure is formed on the surface of the alloy material to produce the objective alloy member having improved characteristics such as oxidation resistance without deteriorating characteristics peculiar to the alloy material.
YASUDA KAZUHIRO
ITO MASAYUKI
SUZUKI TAKAO
NAKABASHI MASAKO
