Method for inhibiting precipitated phase of superaustenitic stainless steel

The invention belongs to the technical field of preparation and application of superaustenitic stainless steel, and particularly relates to a method for inhibiting a precipitated phase of superaustenitic stainless steel. The method comprises the following steps: the super austenitic stainless steel comprises the following components in percentage by weight: less than or equal to 0.007% of element B and less than or equal to 0.01% of element Y; after superaustenitic stainless steel is made into a steel billet, solid solution air cooling and low-temperature diffusion treatment are carried out. According to the method, the diffusion rate of alloy elements Mo and Cr is regulated and controlled by introducing trace alloy elements B and Y which are easy to segregate to a grain boundary; by regulating and controlling the diffusion rate of the alloy elements Mo and Cr, the segregation behavior of the alloy elements Mo and Cr is regulated and controlled, the formation of a precipitated phase is inhibited, and the crac