METHOD FOR MANUFACTURING RAW MATERIAL FOR ROTARY MACHINE PART, METHOD FOR MANUFACTURING ROTARY MACHINE PART, RAW MATERIAL FOR ROTARY MACHINE PART, ROTARY MACHINE PART, AND CENTRIFUGAL COMPRESSOR

摘要

A method of manufacturing a material for a rotary machine component, by performing at least a solution treatment on a material made of a duplex stainless steel, wherein, in the solution treatment, the material is heated to a temperature in a range of 950 to 1100°C and is thereafter cooled to 700°C at an average cooling rate of equal to or greater than 20°C/min.