Title:
NICKEL DIFFUSION BRAZE ALLOY AND METHOD FOR REPAIR OF SUPERALLOYS
Document Type and Number:
WIPO Patent Application WO2002050323
Kind Code:
A9
Abstract:
A braze alloy powder mixture that includes a low-melt powder composition and a high-melt powder composition. The low-melt powder composition is made of one or more low-melt powders and includes 50-70 % Ni, 8-20 % Cr, 8-15 % Ta, 4-10 % Co, 2-7 % Al, and up to 2.25 % B. The high-melt powder composition is made of one or more high-melt powders and includes 50-70 % Ni, 2-10 % Cr, 2-10 % Ta, 5-15 % Co, 2-10 % Al, 2-10 % W, and up to about 3 % each of Re, Mo and Hf. Up to about 1 % Ti, W, Mo, Re, Nb, Hf, Pd, Pt, Ir, Ru, C, Si, and/or Zr may be included in the low-melt powder, while the high-melt powder may include up to about 1 % each of Ti, Nb, C, B, Si, and Zr.
Inventors:
CHESNES RICHARD P (US)
XU RAYMOND RUIWEN (US)
XU RAYMOND RUIWEN (US)
Application Number:
PCT/US2001/047838
Publication Date:
April 17, 2003
Filing Date:
December 10, 2001
Export Citation:
Assignee:
ROLLS ROYCE CORP (US)
CHESNES RICHARD P (US)
XU RAYMOND RUIWEN (US)
CHESNES RICHARD P (US)
XU RAYMOND RUIWEN (US)
International Classes:
B23K1/19; B22F1/00; B23K1/00; B23K31/02; B23K35/02; B23K35/30; C22C19/05; C22C30/00; F01D5/00; (IPC1-7): B23K31/02; C22C19/05
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