Sughrue Mion, PLLC
Ni-based superalloy with excellent unsusceptibility to segregation
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 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.
THE JAPAN STEEL WORKS, LTD. MITSUBISHI HITACHI POWER SYSTEMS, LTD.
C C B C C C
C22C C22F B22D C22C C22B C22C
inventional inventional inventional inventional additional inventional
Koji Takashi Yoshikuni Tatsuya Ryuichi Satoru Eiji
Kajikawa Nakano Kadoya Takahashi Yamamoto Ohsaki Maeda