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

Provided is a method for manufacturing a raw material (A) for a rotary machine part, by performing at least a solution treatment on a raw material comprising two-phase stainless steel. In the solution treatment, the raw material is heated to a temperature of 950°C to 1100°C, and the raw material is then cooled to 700°C at an average cooling rate of 20°C/min or greater.