| 主权项 |
1. A nickel base repair alloy consisting of a blend of about 40 to 60 wt % of a first nickel based braze alloy containing boron, 15 to 35 wt % of a first nickel based filler material, and the remainder consisting of a blend of a second nickel based filler material and a low melting eutectic braze nickel based alloy, said blend being mixed in a binder, said first nickel based alloy consisting of about 6.0 to 6.8 wt % chromium, about 1.175 to 1.225 wt % boron, about 0.080 to 0.12 wt % carbon, about 5.7 to 6.1 wt % aluminum, about 0.04 to 0.12 wt % zirconium, about 12.1 to 13.0 wt % cobalt, about 1.5 to 1.9 wt % molybdenum, about 6.0 to 6.8 wt % tungsten, about 2.75 to 3.25 wt % rhenium, about 3.75 to 4.24 wt % tantalum, about 1.0 to 2.0 wt % hafnium and the balance nickel, and said low melting eutectic braze nickel based alloy consisting of about 13.5 to 16.0 wt % chromium, from about 3.25 to 4.0 wt % boron, and the balance nickel, and said nickel based repair alloy being in a form to be applied to a workpiece, wherein said first nickel based filler material consists of about 0.13 to 0.17 wt % carbon, about 8.0 to 8.8 wt % chromium, about 9.0 to 11.0 wt % cobalt, about 0.5 to 0.8 wt % molybdenum, about 2.8 to 3.3 wt % tantalum, about 0.9 to 1.2 wt % titanium, about 9.5 to 10.5 wt % tungsten, about 5.3 to 5.7 wt % aluminum, about 0.010 to 0.020 wt % boron, about 1.2 to 1.6 wt % hafnium, about 0.03 to 0.08 wt % zirconium, and the balance nickel. |
