Ni-based single crystal superalloy

摘要

Provided is a Ni-based single crystal superalloy containing6% by mass or more and 12% by mass or less of Cr,0.4% by mass or more and 3.0% by mass or less of Mo,6% by mass or more and 10% by mass or less of W,4.0% by mass or more and 6.5% by mass or less of Al,0% by mass or more and 1% by mass or less of Nb,8% by mass or more and 12% by mass or less of Ta,0% by mass or more and 0.15% by mass or less of Hf,0.01% by mass or more and 0.2% by mass or less of Si, and0% by mass or more and 0.04% by mass or less of Zr, andoptionally containing at least one element selected from B, C, Y, La, Ce, and V,with a balance being Ni and inevitable impurities.