Patent ID: 8968643
Filing Date: 2015-03-03
Classification: C22C,C30B

Abstract:
1. An Ni-based single crystal super alloy having a composition comprising 5.8 wt % of Al, 5.8 wt % of Ta, 3.9 wt % of Mo, 5.8 wt % of W, 4.9 wt % of Re, 0.10 wt % of Hf, 2.9 wt % of Cr, 5.8 wt % of Co and 6.0 wt % of Ru in terms of weight ratio, with the remainder consisting of Ni and unavoidable impurities; and wherein when lattice constant of matrix is taken to be a1 and lattice constant of precipitation phase is taken to be a2, a2≦0.9965a1.