NI-BASE SUPERALLOY WITH EXCELLENT SEGREGATION PROPERTIES

摘要

A subject for the invention is to diminish the occurrence of streak-type segregation in producing a material comprising a Ni-based superalloy. The invention relates to a Ni-based superalloy having excellent unsusceptibility to segregation, characterized by comprising: 0.005 to 0.15 mass% of C; 8 to 22 mass% of Cr; 5 to 30 mass% of Co; equal to or greater than 1 and less than 9 mass% of Mo; 5 to 21 mass% of W; 0.1 to 2.0 mass% of Al; 0.3 to 2.5 mass% of Ti; up to 0.015 mass% of B; and up to 0.01 mass% of Mg, with the remainder comprising Ni and unavoidable impurities.