Method for manufacturing oxide dispersion strengthened alloy using organic/inorganic mixed composition as raw material

A method for producing an oxide-dispersed strengthened alloy using organic-inorganic kneaded composition, comprises:

• a feedstock preparing step of preparing the organic-inorganic kneaded composition prepared by kneading, pulverizing and granulating ODS mixed powders and a polymer binder;
• a molding step of forming a semi-finished product having a predetermined shape using the organic-inorganic kneaded composition;
• a debinding step of removing the polymeric binder from the semi-finished product molded in the molding step;
• and
• a sintering step of extracting a final product having a predetermined shape by sintering and cooling the semi-finished product in which the polymeric binder has been removed in the debinding step,
• wherein the sintering step includes:
• a general sintering step of performing sintering at a sintering temperature after raising the sintering temperature to a temperature range of 1250° C. to 1325° C. or less in a vacuum atmosphere;
• and a hot isostatic pressure sintering step of performing sintering in a sintering temperature lower than the sintering temperature of the general sintering step in an isostatic pressure atmosphere.