초록 ▼

A superalloy weld composition includes: up to about 5.1 wt % Co; about 7.2 to about 9.5 wt % Cr; about 7.4 to about 8.4 wt % Al; about 4.3 to about 5.6 wt % Ta; about 0.1 to about 0.5 wt % Si; about 0.1 to about 0.5 wt % Hf; up to about 0.05 wt % C; up to about 0.05 wt % B; about 0 to abo

A superalloy weld composition includes: up to about 5.1 wt % Co; about 7.2 to about 9.5 wt % Cr; about 7.4 to about 8.4 wt % Al; about 4.3 to about 5.6 wt % Ta; about 0.1 to about 0.5 wt % Si; about 0.1 to about 0.5 wt % Hf; up to about 0.05 wt % C; up to about 0.05 wt % B; about 0 to about 2.2 Re; about 2.7 to about 4.4 wt % W; and balance Ni and typical impurities.

대표청구항 ▼

1. A superalloy weld composition, consisting essentially of: about 7.2 to about 9.5 wt % Cr; about 7.4 to about 8.4 wt % Al; about 4.3 to about 5.6 wt % Ta; about 0.1 to about 0.5 wt % Si; about 0.1 to about 0.5 wt % Hf; up to about 0.05 wt % C; up to about 0.05 wt % B; about 0 to about 2.

1. A superalloy weld composition, consisting essentially of: about 7.2 to about 9.5 wt % Cr; about 7.4 to about 8.4 wt % Al; about 4.3 to about 5.6 wt % Ta; about 0.1 to about 0.5 wt % Si; about 0.1 to about 0.5 wt % Hf; up to about 0.05 wt % C; up to about 0.05 wt % B; about 0 to about 2.2 Re; about 2.7 to about 4.4 wt % W; and balance Ni and typical impurities. 2. The composition of claim 1, wherein Cr is about 7.2 to about 8.5 wt %; Ta is about 5 to 5.6 wt %; Hf is about 0.1 to about 0.25 wt %; Re is about 1.0 to about 2.2 wt %. 3. The composition of claim 1, wherein the composition loses less than about 20 mg/cm2,after 1000 hours of cycling to 2200° F. 4. The composition of claim 1, wherein the composition has a rupture life not less than about 100 hours, according to a 2000° F./10 ksi rupture test. 5. The composition of claim 4, wherein the composition has a rupture life not less than about 150 hours. 6. The composition of claim 5, wherein the composition has a rupture life not less than about 200 hours. 7. The composition of claim 1, wherein the composition has a beta-NiAl volume percent not greater than about 4.0 vol %.